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Abstract: Direct exploration of subglacial lakes buried deep under the Antarctic Ice Sheet has yet to be achieved. However, at retreating margins of the ice sheet, there are a number of locations where former subglacial lakes are emerging from under the ice but remain perennially ice covered. One of these lakes, Hodgson Lake (72°00.549′S, 068°27.708′W) has emerged from under more than 297–465m of glacial ice during the last few thousand years. This paper presents data from a multidisciplinary investigation of the palaeolimnology of this lake through a study of a 3.8m sediment core extracted at a depth of 93.4m below the ice surface. The core was dated using a combination of radiocarbon, optically stimulated luminescence, and relative palaeomagnetic intensity dating incorporated into a chronological model. Stratigraphic analyses included magnetic susceptibility, clast provenance, organic content, carbonate composition, siliceous microfossils, isotope and biogeochemical markers. Based on the chronological model we provisionally assign a well-defined magnetic polarity reversal event at ca 165cm in the lake sediments to the Mono Lake excursion (ca 30–34ka), whilst OSL measurements suggest that material incorporated into the basal sediments might date to 93±9ka. Four stratigraphic zones (A–D) were identified in the sedimentological data. The chronological model suggests that zones A–C were deposited between Marine Isotope Stages 5–2 and zone A during Stage 1, the Holocene. The palaeolimnological record tracks changes in the subglacial depositional environment linked principally to changing glacier dynamics and mass transport and indirectly to climate change. The sediment composition in zones A–C consists of fine-grained sediments together with sands, gravels and small clasts. There is no evidence of overriding glaciers being in contact with the bed reworking the stratigraphy or removing this sediment. This suggests that the lake existed in a subglacial cavity beneath overriding LGM ice. In zone D there is a transition to finer grained sediments characteristic of lower energy delivery coupled with a minor increase in the organic content attributed either to increases in allochthonous organic material being delivered from the deglaciating catchment, a minor increase in within-lake production or to an analytical artefact associated with an increase in the clay fraction. Evidence of biological activity is sparse. Total organic carbon varies from 0.2 to 0.6%, and cannot be unequivocally linked to in situ biological activity as comparisons of δ 13C and C/N values with local reference data suggest that much of it is derived from the incorporation of carbon in catchment soils and gravels and possibly old CO2 in meteoric ice. We use the data from this study to provide guidelines for the study of deep continental subglacial lakes including establishing sediment geochronologies, determining the extent to which subglacial sediments might provide a record of glaciological and environmental change and a brief review of methods to use in the search for life. [Copyright &y& Elsevier]

Abstract: At retreating margins of the Antarctic Ice Sheet, there are a number of locations where former subglacial lakes are emerging from under the ice but remain perennially ice-covered. This paper presents a site description of one of these lakes, Hodgson Lake, situated on southern Alexander Island, west of the Antarctic Peninsula (72° 00.549′ S, 68° 27.708′ W). First, we describe the physical setting of the lake using topographic and geomorphological maps. Second, we determine local ice sheet deglaciation history and the emergence of the lake using cosmogenic isotope dating of glacial erratics cross-referenced to optically stimulated luminescence dating of raised lake shoreline deltas formed during ice recession. Third we describe the physical and chemical limnology including the biological and biogeochemical evidence for life. Results show that the ice mass over Hodgson Lake was at least 295m thick at 13.5ka and has progressively thinned through the Holocene with the lake ice cover reaching an altitude of c. 6.5m above the present lake ice sometime after 4.6ka. Thick perennial ice cover persists over the lake today and the waters have remained isolated from the atmosphere with a chemical composition consistent with subglacial melting of catchment ice. The lake is ultra-oligotrophic with nutrient concentrations within the ranges of those found in the accreted lake ice of subglacial Lake Vostok. Total organic carbon and dissolved organic carbon are present, but at lower concentrations than typically recorded in continental rain. No organisms and no pigments associated with photosynthetic or bacterial activity were detected in the water column using light microscopy and high performance liquid chromatography. Increases in SO4 and cation concentrations at depth and declines in O2 provide some evidence for sulphide oxidation and very minor bacterial demand upon O2 that result in small, perhaps undetectable changes in the carbon biogeochemistry. However, in general the chemical markers of life are inconclusive and abiotic processes such as the diffusion of pore waters into the lake from its benthic sediments are far more likely to be responsible for the increased concentrations of ions at depth. The next phases of this research will be to carry out a palaeolimnological study of the lake sediments to see what they can reveal about the history of the lake in its subglacial state, and a detailed molecular analysis of the lake water and benthos to determine what forms of life are present. Combined, these studies will test some of the methodologies that will be used to explore deep continental subglacial lakes. [Copyright &y& Elsevier]

The Later Stone Age of southern Africa sees the succession of varied lithic traditions. The Wilton (8ka BP – second millennium AD) corresponds to the last techno-complex of the LSA in South Africa. It has been typologically recognised over vast geographical areas and seems to last until the progressive disappearance of stone tool industries, while experiencing chronological and geographical variations. While Wilton formal tools, mainly small scrapers and microliths, have received much attention, the ways in which the stone tools themselves were produced are still unknown. This paper provides keys to describe mid-Holocene Wilton microlithic productions at the reference site of Rose Cottage Cave (Free-State). The lithic technological analysis highlights the integrated production of 'ready-made' blanks from one volume, including bladelets. The scraper and backed piece typologies are analysed and reveal an interesting diversity. These results provide a foundation for the building of the technological understanding of the Wilton in southern Africa. This paper ultimately aims to facilitate the exploration of regional and chronological variations at Wilton sites, and, by contrast, to differentiate other lithic traditions in southern Africa. • This paper provides keys for better understanding Wilton lithic technologies in South Africa • The knapping methods allowed for the production of various 'ready-made' blanks from one volume. • Different knapping techniques could have been used within one operational sequence. • The scraper and backed piece typology are more diverse than revealed by previous studies. • The paper provides a base line for future comparative studies. [ABSTRACT FROM AUTHOR]

In their analysis of relative sea level observations from the J. Bonaparte Gulf of Northern Australia, the authors interpret the raw observations of the Last Glacial Maximum (LGM) lowstand of the sea by invoking the notion that there is a significant difference between the “spatially averaged change in sea level at any time” and what is referred to as ice-equivalent eustatic sea level in Peltier (On eustatic sea level history, Last Glacial Maximum to Holocene, Quaternary Science Review 21 (2002), in press; companion paper). This notion is incorrect as it violates the principle of mass conservation. The implications of this error of interpretation to the primary conclusion of the Yokoyama et al. (Nature 406 (2000) 713–716) analysis, that “the ice-volume equivalent sea level at LGM lies between −135 and −130 m” is discussed herein. It is concluded on the basis of this discussion that, although the argument presented in this paper for such a deep LGM depression of sea level relies upon this invalid notion, it may nevertheless be true that the LGM low stand was greater than the 120 m conventionally assumed. [Copyright &y& Elsevier]

The Northeast Greenland Ice Stream (NEGIS) is the main artery for ice discharge from the northeast sector of the Greenland Ice Sheet (GrIS) to the North Atlantic. Understanding the past, present and future stability of the NEGIS with respect to atmospheric and oceanic forcing is of global importance as it drains around 17% of the GrIS and has a sea-level equivalent of 1.6 m. This paper reconstructs the deglacial and Holocene history of Nioghalvfjerdsbræ (or 79N Glacier); a major outlet of the NEGIS. At high elevation (>900 m asl) autochthonous blockfield, a lack of glacially moulded bedrock and pre LGM exposure ages point to a complex exposure/burial history extending back over half a million years. However, post Marine Isotope Stage 12, enhanced glacial erosion led to fjord incision and plateaux abandonment. Between 900 and 600 m asl the terrain is largely unmodified by glacial scour but post LGM erratics indicate the advection of cold-based ice through the fjord. In contrast, below ∼600 m asl Nioghalvfjerdsfjorden exhibits a geomorphological signal indicative of a warm-based ice stream operating during the last glacial cycle. Dated ice marginal landforms and terrain along the fjord walls show initial thinning rates were slow between ∼23 and 10 ka, but post-10 ka it is evident that Nioghalvfjerdsfjorden deglaciated extremely quickly with complete fjord deglaciation below ∼500 m asl between 10.0 and 8.5 ka. Both increasing air and ocean temperatures were pivotal in driving surface lowering and submarine melt during deglaciation, but the final withdrawal of ice through Nioghalvfjerdsfjorden was facilitated by the action of marine ice sheet instability. Our estimates show that thinning and retreat rates reached a maximum of 5.29 ma−1 and 613 ma−1, respectively, as the ice margin withdrew westwards. This would place the Early Holocene disintegration of this outlet of the NEGIS at the upper bounds of contemporary thinning and retreat rates seen both in Greenland and Antarctica. Combined with recent evidence of ice stream shutdown during the Holocene, as well as predictions of changing ice flow dynamics within downstream sections of the NEGIS catchment, this suggests that significant re-organisation of the terminal zone of the ice stream is imminent over the next century. • The Northeast Greenland Ice Stream (NEGIS) thinned slowly between 23–10ka as ice retreated across the continental shelf. • At the opening of the Holocene rising air & ocean temperatures drove surface lowering & basal melt. • Between 10-8.5ka marine ice sheet instability further enhanced grounding line retreat rates into Nioghalvfjerdsfjorden. • During the Early Holocene thinning and retreat rates reached a maximum of 5.29 ma-1 and 613 ma-1 respectively. • Such rates are at the upper bounds of contemporary ice stream thinning and retreat rates in Greenland and Antarctica. [ABSTRACT FROM AUTHOR]

One of the prehistoric techniques of salt production consisted of using ceramic vessels, known as briquetage, for the artificial evaporation of salt water. This paper summarizes all the archaeological sites throughout the Iberinan Peninsula where briquetage has been described to date, with special focus on the well-studied archaeological site of Espartinas saltworks. At Espartinas we found the use of two different kinds of ceramics, which points to a two-step process also involving halfah or esparto grass, which may well have been used for transport or/and as an insulating layer between the vessels walls and the mass of salt to facilitate the extraction of whole salt cakes. Palaeoenvironmental conditions at Espartinas have also been described based on local and regional pollen records and compared with the dry conditions associated to the so-called "4.2 cal kyr BP abrupt climatic event". Despite the reduced amount of radiocarbon dating, the briquetage appears have been present in the studied region from the Late Neolithic to at least the Bronze Age. However, we cannot discard the fact that it might have reached the early Roman period, when salt evaporation ponds replaced this laborious technique. Moreover, briquetage distribution has been compared with evaporite outcrops throughout the Iberian Peninsula and it has been observed a characteristic pattern with a preference for peripheral, near to coast regions, with the exception of from Aranjuez-Getafe lower-Miocene lacustrine evaporites in central Iberia. Briquetage spread also shows a marked correlation with sites characterized by the presence of Atlantic halberds the first true metal weapon ever made in Western Europe and part of the warrior panoply of Late Copper Age/Early Bronze Age elites. At least during this period, these findings suggest that briquetage was used to obtain solid salt cakes easily transportable to medium and large distances by Atlantic and intra-Iberian trade exchange networks, which confirms previous studies that associate Bell Beaker phenomenon with salt circulation. • A review of evidence of briquetage in the Iberian Peninsula Prehistory is described. • Factors that appear to have affected the distribution of briquetage are described. • During the Late Copper Age/Early Bronze Age a marked correlation between briquetage sites and Atlantic halberds is described. • Salt pans appear to have been highly demanded during environmental conditions associated with the 4.2 cal kyr BP climatic event. [ABSTRACT FROM AUTHOR]

By combining a multidisciplinary approach and an intensive program of scientific techniques, this paper provides a comprehensive overview of salt production at the Villafáfila lagoons (Zamora, Spain) in prehistoric times. During the Late Chalcolithic and the Early/Middle Bronze Age salt was obtained by boiling brine from salt lagoons. In many parts of western and central Europe at the time the standard procedure for forcing evaporation usually involved the use of crudely fired clay vessels (briquetage) to concentrate brine, and then to mould salt. We suggest that the methods during the final stages of the process differed at Villafáfila, having found evidence of basketry and textiles, which may have been used in the step of crystallization/transport of salt in cake, instead of the small ceramic salt moulds which would be expected in such sites. The role of salt within the socioeconomic setting of the 3rd and 2nd millennia BCE in Central Iberia is also assessed. It is argued that the production and distribution of salt contributed significantly to the political economy, as elites controlled this activity, supporting the idea that salt was a prestige good that contributed to the accumulation of wealth. There is also evidence of ritual practices in the salt-processing areas, as human burials and animal sacrifices have been documented in the excavated sites. • Archaeological evidence shows the production of salt at the Villafáfila lagoons by the late 3rd millennium BCE, during the Beaker period. • Brackish water was boiled in large ceramic vessels supported by clay or stone pedestals. • Techniques evolved during the Early Bronze Age, when pedestals were replaced by clay-walled kilns. • Absence of genuine briquetage, and of small ceramic pots used as salt moulds. • Possible use of baskets and textiles sacks as moulds. [ABSTRACT FROM AUTHOR]

Southwestern North America is currently experiencing a multidecadal megadrought, with severe consequences for water resources. However, significant uncertainty remains about 21st century precipitation changes in this semi-arid region. Paleoclimatic records are essential for both contextualizing current change, and for helping constrain the sensitivity of regional hydroclimate to large-scale global climate. In this paper, we present a new 2.8 Ma to present compound-specific isotopic record from Clayton Valley, the site of a long-lived paleolake in the southern Great Basin. Hydrogen and carbon isotopes from terrestrial plant leaf waxes provide evidence of past shifts in rainfall seasonality as well as ecosystem structure, and help contextualize the formation of this lithium-rich lacustrine basin. Our results suggest that regional hydroclimates underwent a substantial reorganization at the Plio-Pleistocene boundary, especially between 2.6 and 2.0 Ma. In this interval, a reduced latitudinal temperature gradient in the North Pacific likely resulted in a northward shift in storm tracks, and a reduction in winter rainfall over the southern Great Basin. This occurred against a background of increased summer rainfall and a greater accumulation of lithium in the lake basin. Our interpretation is corroborated by a compilation of Plio-Pleistocene north Pacific sea surface temperature records, as well as an isotope-enabled model simulation. Overall, these results suggest that past shifts in rainfall seasonality helped set the stage for the development and dessication of lithium-rich lacustrine deposits. • We present a new record from Clayton Valley, Nevada in the southern Great Basin. • Leaf wax hydrogen isotopes reveal long-term changes in rainfall seasonality. • Reduced winter rainfall between 2.6 and 2.0 Ma driven by ocean temperature changes. • Hydroclimate changes critical to formation of lithium-rich lacustrine deposits. [ABSTRACT FROM AUTHOR]

Numerous researchers point out the emergence of human symbolism is related to the evolution of the complexity of human cognition. Red mineral pigments have been used extensively, particularly with anatomically modern humans, for various purposes. However, the management and supply of these pigments during prehistoric periods remains poorly investigated. Still today, the limited application of physico-chemical analyses often leads to a simplistic attribution of these pigments as ochre. The studies of data from recent literature presented in our paper show a progressive introduction and exploitation of cinnabar ore, to achieve a red pigment, from the seventh millennium BC. In this panorama, the new data obtained from the analyses of samples of artefacts from La Marmotta (Italy) show a wide use of cinnabar in central Italy from the early Neolithic and attest to the earliest use of this ore in the western Mediterranean area. • Pigments can provide insight into changes in the traditions and symbolic practices of human groups during prehistoric times. • XRF and Raman analyses are used to determine pigment composition. • Residues on personal ornaments at La Marmotta (Italy) attest to the first use of cinnabar in the Western Mediterranean. • The chrono-cultural diffusion of cinnabar in the Mediterranean basin follow the arrhythmic wave of the Neolithisation. [ABSTRACT FROM AUTHOR]

Venosa-Notarchirico is a musealized Lower Paleolithic site in southern Italy (Basilicata), where a human femoral shaft was discovered in 1985. The fossil specimen can be evaluated in the new light of excavations started in 2016, which provide a more updated and extensive picture of the site, including the crucial Ar/Ar date of 661-614 ka for the human specimen. This makes the fossil diaphysis from Venosa-Notarchirico (Vn-H1) the oldest fossil hominin found so far in the Italian peninsula, associated with the earliest evidence of genuine Acheulean in Europe. In this paper, we report a comparative morphometric analysis of this femur, as well as a paleopathological reappraisal of the periosteal alteration that affects the specimen, supported by an unpublished histological analysis. Vn-H1 represents the proximal two-thirds of a right femur lacking the epiphyseal region. We argue it belonged to an immature individual, possibly a juvenile (late adolescent). Its features suggest that the specimen may refer to an archaic (i.e. , non-modern) human species, also showing morphological differences compared to fossil samples of the Neanderthal lineage. We also support the identification of a pathological condition affecting Vn-H1, particularly evident in some preserved portions of the mid-shaft as described here. Its etiology is discussed after differential diagnosis, which led us to suggest an alteration of inflammatory origin, viewed as a nonspecific periosteal response. This pathology may have been roughly concomitant with the death of the individual. • Vn-H1 represents the oldest human fossil specimen ever found in Italy within one of the earliest Acheulean sites in Europe. • The age of Vn-H1, dated Ar/Ar at 661-614 ka, takes advantage of the recent new excavations at the Venosa-Notarchirico site. • Both morphology and morphometry of the human specimen suggest an age at death of the individual to the late adolescence. • Palaeopathological observations, supported by unpublished histological data, suggest the nature of the periosteal alteration. [ABSTRACT FROM AUTHOR]

Daily insolation at a given latitude is often used in the explanation of the long-term variations of paleoclimate records. However, the length of astronomical seasons, which has been paid less attention, could also be important. This paper provides an original calculation of the length of these seasons using the eccentric anomaly. The past and future long-term variations as well as the spectral characteristics of the length of astronomical seasons, of the total and average insolation over the astronomical seasons and of the caloric insolation are shown and compared. The length of astronomical seasons is only a function of climatic precession. The total irradiation for a given latitude and an astronomical season is mainly a function of obliquity except that it is mainly a function of eccentricity in a latitudinal band that is season dependent and from where the phase between obliquity and total irradiation reverses (e.g. ∼11.5°N for the astronomical northern hemisphere summer half-year). The spectral characteristic of the mean insolation over the astronomical summer half-year varies in latitude and time. It contains stronger obliquity signal in high latitudes than in low latitudes, but the obliquity signal already gets very weak at 45°N/S leaving the dominance of climatic precession between 45°N and 45°S. The variation of the mean summer half-year insolation over the last 1 Ma is characterized by a Mid-Brunhes transition at ∼450 ka BP, with a dominant role of climatic precession at all latitudes before ∼450 ka BP but significantly enhanced role of obliquity in high latitudes after this time. The simultaneous weakening of the variations of climatic precession and obliquity around 800 ka ago, a time corresponding to the Mid-Pleistocene Transition, leads to weak variations in both total and mean seasonal insolation. The insolation of a specific case, the Holocene, is finally discussed. Depending on the sensitivity to different types of insolation, different climate variables and regions could show different evolution and trend during the Holocene. • An original calculation of the length of the astronomical seasons is provided. • Precession and obliquity contribute differently to the length of astronomical seasons and to different insolation metrics. • Distinctive variations of total and mean seasonal insolation characterize the Mid-Brunhes and Mid-Pleistocene transitions. • Different insolation metrics display different trend over the Holocene. [ABSTRACT FROM AUTHOR]

Mainland Southeast Asia experiences complex and variable hydroclimatic conditions, mainly due to its location at the intersection of Asian monsoon subsystems. Predicting future changes requires an in-depth understanding of paleoclimatic conditions that is currently hindered by a paucity of records in some regions. In this paper, we present the first speleothem stable isotope records from western Thailand detailing the Bølling-Allerød interstadial, Younger Dryas termination, and early- to mid-Holocene period. We find evidence of higher precipitation during the Bølling-Allerød (14,321–12,824 years before present (1950: BP)) compared to a Younger Dryas termination that starts 11,702–11,674 BP, has a rapid shift centered on 11,660–11,641 BP, and ends 11,603–11,589 BP. In addition, our records show Holocene monsoon intensity peaking at 8250 BP or before, a multi-millennia delay from the Northern Hemisphere summer insolation peak, followed by a trend to drier conditions until at least 750 BP. Assessment of the timing of the Younger Dryas termination in paleoclimate records across Southeast Asia reveals an earlier shift of the Indian Summer Monsoon to global climate shifts when compared to East Asian Summer Monsoon records. The causes of this are currently unknown. Some potentially important aspects include: an Indian Summer Monsoon influence on East Asian Summer Monsoon strength via the Indian Ocean Dipole climate pattern, the role of the Tibetan Plateau in monsoon dynamics, and exposure of the Sundaland shoreline. More high-resolution paleoclimate records, especially on the pathway of Indian Summer Monsoon to East Asian Summer Monsoon, are required for further discussion on the mechanisms controlling the differences between climate regimes. • We present two new speleothem stable isotope records from western Thailand. • Conditions trend wetter during the Bølling-Allerød. • Early and abrupt termination of the Younger Dryas (11,675–11,600 BP, ±73 years). • Change Point Analysis of records finds earlier rapid shift in Indian Summer Monsoon. • Distinct trend of increasing δ18O and δ13C values throughout Holocene. [ABSTRACT FROM AUTHOR]

This paper explores the Holocene climatic dynamics of South Africa's southern Cape, a region that supports a large proportion of the Greater Cape Floristic Region and contains an array of important archaeological sites. While South African climates are generally characterised by marked rainfall seasonality, the southern Cape is currently situated at the interface between tropical and temperate climate systems, resulting in a largely aseasonal rainfall regime. This regime, however, is thought to have been particularly sensitive to past changes in late Quaternary boundary conditions, meaning that variability in either tropical or temperate systems could have significant environmental impacts. Evidence of past climate change, however, remains limited. We present a 9000-year record of hydroclimatic variability obtained from rock hyrax midden stable nitrogen records, from Papkuilsfontein, on the southern slope of the Anysberg Mountains. Resolved to an average 6-year resolution and spanning the period c. 9050 cal yr BP to 1990 CE, this is the highest resolution Holocene record from southern Africa and presents a unique opportunity for the detailed study of the primary drivers and spatial gradients of Holocene climate change in the southern Cape. The data indicate a long-term decrease in aridity across the Holocene and a pattern of variability that reveals remarkable similarities with records from the South African tropics and El Niño–Southern Oscillation proxies, highlighting the significance of tropical systems as drivers of Holocene climate change in the region. This substantially expands what has been previously considered to be the zone of tropical influence, extending from a coastal phenomenon associated with heat transport via the Agulhas Current to encompass much, if not all, of the Agulhas Plain south of the Cape Fold Mountains. These findings provide a valuable new climatic framework for contextualizing changes in ecological and archaeological records in the southern Cape, and contribute to a more comprehensive understanding of the spatio-temporal dynamics of climate systems in southern Africa. • Sub-decadal 9000-year record of aridity from South Africa's southern Cape. • Reveals dominance of tropical forcing across the southern Cape and Agulhas Plain. • ENSO variability indicated to be important driver of regional climate change. • Presents high-resolution framework for study of human-environment interactions. [ABSTRACT FROM AUTHOR]

Meat consumption by early hominins is a hotly debated issue. A key question concerns their access to large mammal carcasses, including megafauna. Currently, the evidence of anthropic cut marks on proboscidean bones older than -or close to- 1.0 Ma are restricted to the archaeological sites of Dmanisi (Georgia), Olduvai (Tanzania), Gona (Ethiopia), Olorgesailie (Kenya) and La Boella (Spain). During an inspection of the almost complete carcass of Mammuthus meridionalis (FN3-5-MPS) from the Oldowan site of Fuente Nueva 3 (Orce, Spain, c. 1.2 Ma), a few traces compatible with human-made cut marks and carnivore tooth marks were found. From this finding and previous interpretations the following questions arise: When and under what conditions was FN3-5-MPS deposited? What is the nature of the marks found on the surface of the bones of this mammoth? To answer, we have conducted a high-resolution analysis of these remains, combining both taphonomic and microstratigraphic data. Our results, using microstratigraphic and micromorphological analyses of sediments based on thin-sections, show that this individual was deposited in a marshy environment. Subsequently, the carcass was exploited by hominins and large felids that left their marks on the surface of some of its bones. For this purpose, the identification and characterisation of both cut marks and tooth marks were performed using high-resolution 3D modelling, geometric morphometrics, and artificially intelligent algorithms. Based on the anatomical position of both the cut and tooth marks, we propose that both the hominins and the saber-toothed cats had early access to the animal. Finally, this paper shows how an interdisciplinary approach can shed detailed light on the particular story regarding the death and processing of the carcass of a female mammoth, deposited at Fuente Nueva 3. • Original contextual approach combining taphonomy and microstratigraphy. • Proboscidean found in FN3 (FN3-5-MPS) died in a watery environment. • Cut and tooth marks reveal proboscidean exploitation by felids and Homo. • Earliest evidence of cut marks on proboscideans bones in western Eurasia. • New insights into the behaviour of the first inhabitants of western Eurasia. [ABSTRACT FROM AUTHOR]

Archaeological excavations in urban and rural contexts often uncover dark homogeneous anthropogenic deposits, soils and soil horizons, known as Dark Earths, Cultural Layers and Anthrosols. Major scientific questions arise about the processes that lead to the formation of these soils and deposits, as they are often related to a complex combination of environmental, climatic, and anthropogenic factors. Many studies focused on the morphological and physical-chemical investigation of the archaeological remains found as well as the inorganic constituent of the soil. The organic fraction has been only roughly investigated and studies carried out on a molecular level are very limited. However, a more refined investigation of the chemical constituents of these soils can potentially reveal pivotal insights on the archaeological context such as past domestic habits and/or urban organization. It has been demonstrated that, among organic matter constituents, fecal steroids are promising biomarkers to track fecal input in many environmental matrixes such as water, soils, and sediments. In this paper we determine the fecal sterols and stanols content in dark homogeneous anthropogenic deposits and soils found in seven archaeological sites in Italy (from Verona, Como, Florence, Mel and Conegliano) dated from the Late Bronze Age and the Medieval Period, aiming to assess the major contribution of the fecal input using diagnostic fecal indexes obtained from specific fecal sterol proportions. To this purpose, a baseline was established by identifying the fecal fingerprint of domestic herbivores (caprids, ovines, equines and bovines) and omnivores (pigs). Based on their fecal fingerprint, we classified the deposits of seven studied sites into four distinct categories: i) the medieval sites of Verona, presented a strong mixed fecal input from both herbivores and humans; ii) the medieval sites of Como and Florence which showed a similar pattern, with a predominance of human fecal input over livestock; iii) the late medieval soils of Mel and the late bronze age Cultural Layers of Castellar di Leppia (Verona) which exhibited a generally scarce fecal contamination while iv) the final bronze age site of Conegliano (Treviso), a strong fecal contamination from herbivores was detected. These results thus demonstrate that for the Medieval Dark Earth the socio-cultural processes leading to the formation of the Dark Earth differ in terms of sewage and waste management and/or in animal husbandry practices. • The molecular fecal fingerprint of domestic animals was established. • Seven archaeological sites in north-central Italy were analyzed for fecal input. • The diverse fecal contamination patterns reveal past habits of sewage and water management. [ABSTRACT FROM AUTHOR]

During the Bronze and Iron Age, Sardinia was home of one of the most technologically advanced Mediterranean societies (the Nuragic culture). Given its key geographical location, the island was also the fulcrum of deep cultural exchanges. Toward the end of the Iron Age, Phoenicians, and especially Carthaginians and Romans, massively frequented Sardinia for different purposes. This marks an important cultural transition for the region, as the ancient Nuragic-related society terminated. At the same time, this impacted the subsistence and land use practices. Together with middle to late Holocene climate changes, the novel anthropic activities had a pivotal role in shaping the landscape around the island. However, high resolution climate and environmental records for these culturally important phases are still lacking in Sardinia. Thus, this paper explores palaeoenvironmental changes from the Bronze Age to post Iron Ages times by using carbonate speleothems from Suttaterra de Sarpis Cave (Urzulei, central east Sardinia), strategically located nearby the Or Murales Nuragic Village. U–Th ages (n = 20) indicate that five stalagmites comprehensively span the last ∼7000 years. Peculiarly, they all show an evident stratigraphic discontinuity. Age models attest that hiatuses can be at times associated with the discontinuities, spanning periods of ∼1200 to ∼200 years. Importantly, the discontinuities occurred from the Late Iron Age to the Roman period. Based on fabric observations, trace elements and δ13C- δ18O analyses, the discontinuities are primarily attributed to a progressive change of land use above the cave. We suppose that deforestation aimed to clearance for agriculture and livestock practices probably was the most impacting factor for infiltration dynamics and soil state, thus affecting the studied speleothems, although archaeological and historical data are absent for the specific study area. Instead, this is in line with the cultural transition occurring in Sardinia toward the end of the Iron Age, with novel agricultural practices imported by the overseas populations. The anthropic disturbance to the millennial-long karst equilibrium possibly overprinted the response of speleothem proxies to climate oscillations, although future higher resolution analyses are necessary to better investigate the evolution of climate during the Holocene as well as its role in the development of ancient civilizations. Indeed, this is the first speleothem-based Holocene palaeoenvironmental reconstruction accomplished in Sardinia. Considering the paucity of natural lakes in this key location, speleothems here demonstrate their potential in exploring human-driven palaeoenvironmental changes during times of cultural transitions within the Mediterranean context. • The first Holocene speleothem paleoenvironmental record from Sardinia (Italy). • Changes in geochemical and physical speleothems' properties point to variation of land use. • Land use variation is connected to cultural shifts during intra- and post-Nuragic period. [ABSTRACT FROM AUTHOR]

The Sopeña rock-shelter is a Palaeolithic site located in the northern slopes of the Cantabrian mountain range of northern Spain, facing the Bay of Biscay, in the Principality of Asturias. The shelter overlooks the Güeña River, which is a tributary to the Sella River. Excavations there yielded a long stratigraphic and archaeological sequence of episodes of human occupation, ranging from the later millennia of the Middle Palaeolithic -until the local disappearance of Neanderthals c. 42,630 ± 600 years ago, to the initial stages of the Upper Palaeolithic, which marks the local arrival of modern Homo sapiens sapiens , and an important Gravettian sequence. All the Sopeña levels yielded important accumulations of both lithic and faunal remains. The Mousterian appears, from top to bottom, in Sopeña levels XII, XIII, XIV, XV and XVI. Our study of the animal remains shows that at Level XV Neanderthal activity is very intense and responsible for the accumulation and modification of most of the bone remains (Yravedra et al., under review), while, as described below, this is not the case for levels XII, XIII and XIV, where carnivores were more involved in the accumulation and modification of animal remains. In this paper, we analyze the alternation between human and carnivore activity in the formation of the bone assemblages in the later Mousterian levels of Sopeña, on the eve of the arrival of anatomically modern humans in the Cantabrian region c. 40.000 years ago. • Sopeña level XIV, XIII, XII are three Mousterian levels from the north of Iberia. • The level XIV-XII are palimpsest with bone assemblages made by carnivores and humans. • Neandertal activity was focused on the procurement of large bovids, deers and horses. • The small ungulates, such as Iberian ibex and chamois, were carried for carnivores. [ABSTRACT FROM AUTHOR]

The loess-paleosol sequence of the Striguny outcrop is located in the Belgorod region, in the forest-steppe area. The study of the depositional environment, pedogenesis, and pedostratigraphy of the MIS5 paleosols within the OSL chronological framework is the focus of this paper. Field data are supported by micromorphology, grain size distribution, chemical, and geochemical properties. The buried paleosols reveal the dramatic environmental trend (progressive aridization and cooling) from the Last Interglacial to the end of the Early Glacial. The lower paleosol (Albic Retisol) corresponds to the moderately warm and humid climate of boreal mixed forests during the Last Interglacial (MIS5e). Throughout the transition to the Early Glacial, boreal forests were replaced by productive boreal steppe with Chernozems and then by cold, arid steppe with Calcic Cambisols. Cryogenesis accompanied pedogenesis during the whole Early Glacial period. The diagenetic impact resulted in a decrease in organic carbon and the calcification of Albic Retisol. The tripartite pattern of the MIS5 chronozone of LPS Striguny may serve as a good stratigraphic marker for the onset of the Late Pleistocene, allowing correlation with loess-paleosol sequences of the Northern Hemisphere and linking it with global climatic fluctuations recorded in marine sediments. The buried Glossic Albic Retisol is similar to the modern soils of the Southern Taiga, which now occur 500 km to the north of the study area. This means that the bioclimatic pattern during the last interglacial was different than it is today. The present study establishes the current most southerly position of the forest soil of the Last Interglacial on the Russian Plain. • Striguny loess-paleosol sequence includes a complete sequence of the MIS5 chronozone with three welded paleosols. • Loess-paleosol sequence depicts aridization and cooling from the Last Interglacial to the end of the Early Glacial. • During the Last Interglacial the forest soils advanced to the southern edge of forest-steppe. [ABSTRACT FROM AUTHOR]

Amazonia constitutes one of the most ethnically diverse regions in the world. However, our understanding of the arrival and historical trajectories of people in Amazonia is still poorly understood. Our recent excavations in the Serranía de la Lindosa have begun to fill this gap and provide new insights into the first human societies that settled in the Colombian Amazon region during the Younger Dryas (YD) period of the late Pleistocene. This paper details the stratigraphy, taphonomy and chronological framework of two rock shelters, Cerro Montoya 1 and Limoncillos, from excavations carried out by the LASTOURNEY project between 2021 and 2022. Based on radiocarbon dates from five multicomponent sites (Cerro Azul, Cerro Montoya 1, Limoncillos, Angosturas II and Casita de Piedra), four distinct phases of occupation are modelled using OxCal program (v.4.4). late Pleistocene-early Holocene (12.6–10. 0 cal ka BP); early to middle Holocene (9.5–5. 9 cal ka BP); initial late Holocene (4.1–3. 7 cal ka BP), and late Holocene (3.0–0. 3 cal ka BP). We establish the arrival date of the first human groups to the Colombia Amazon by ∼12. 6 cal ka BP , who settled in a tropical rainforest environment, practised a generalised subsistence, had an expedient unifacial technology, and began to paint with ochre on the walls of the mesa-top tepuis by at least ∼10. 2 cal ka BP. The chronology indicates gaps in the sequence during the middle Holocene, between 5.9–4. 1 cal ka BP , likely representing periods of abandonment. • We report several new evidences of early peopling of Amazonia River basin. • We report new evidences of human occupations of the Serranía La Lindosa (Colombian Amazon). • We report the data of two rock shelters, Cerro Montoya 1 and Limoncillos. • We report several lines of evidence on the human adaptability to the Colombian Amazon lowlands. • The humans who settled in the Serrania La Lindosa "humanized" the territory by rock art. [ABSTRACT FROM AUTHOR]

The northwest coast of North America exhibits highly variable patterns of relative sea-level (RSL) change following the Last Glacial Maximum (LGM) that reflect proximity to the Cordilleran glacial ice loading and local rates of deglaciation. In this paper we present postglacial RSL histories for four coastal zones in a transect across northern Vancouver Island, Canada, derived from multiple proxies (isolation basin cores, geological exposures, archaeological sites, GIS-based landform interpretation), and relate these to the timing of glacial retreat after the LGM. Notably, parts of the west coast of northern Vancouver Island were ice-free by ∼18,200 years ago, earlier than much of the rest of Vancouver Island and the broader region. These four RSL reconstructions demonstrate substantial variation across the north end of Vancouver Island, which we attribute to regional differences in glacial isostatic processes. Additionally, some RSL curves reveal the likely effects of global glacial meltwater pulses. Documenting late Pleistocene and early Holocene coastline change in this region of Vancouver Island is significant for understanding the late Quaternary history of western North America more broadly: the RSL histories help delimit potential refugia and postglacial expansion of plants and animals (including humans) as the ice retreated. • We present four new relative sea level curves for Northern Vancouver Island, Canada. • RSL histories vary from east to west, related to glacio-isostatic processes. • Radiocarbon ages constrain timing of glacial retreat, landscape change. • Some parts of northern Vancouver Island have been ice-free for ∼18,200 years. • Past shoreline positions help understand postglacial expansions of plants/animals. [ABSTRACT FROM AUTHOR]

This paper presents the results of the investigations that defined the formation of the sedimentary deposits and the chronological sequence of the Foz do Chapecó archaeological area in the Volta Grande of the Upper Uruguay River, Southern Brazil. This research was undertaken to contribute to the definition of the diachronic, sedimentary and stratigraphic context of the archaeological occupations. To achieve these goals a geoarchaeological prospection by land and water was conducted, focusing on the valley bottoms, in the whole Volta Grande area. It comprehended the characterization of surface sedimentary deposits, the exposure and analysis of stratigraphic profiles, and sedimentological analysis. Four superficially exposed deposits were identified: i.e., fluvial conglomerates, fine sediments with sandy texture, clay colluviums and current and recent alluvial deposits. Six interesting points for the opening of stratigraphic profiles were identified, and subsequently resulted in the identification of sedimentary facies associated with river-bed, colluvial and colluvial-alluvial deposits. Three of these points presented a clear sequence of archaeological levels in the stratigraphic context. The results indicated that the local sediments are predominantly composed of a variable mixture of silt and clay, with sands occurring predominantly in an interdigitated form. The stratigraphic structure of the identified layers led to the establishment of 7 sedimentary facies, associated with colluvium (Cm), colluvium-alluvium (Sm) and alluvium and fluvial channels (Sm, Fl, Gms, Gt, Gp, Gh). The radiocarbon dating gives an age between 12.0 and 0.3 cal kBP, indicating that the filling of the local valley occurred during the end of the Pleistocene and throughout the Holocene by means of both fluvial and colluvial systems. Nine distinct archaeological levels, with a clear stratigraphic, chronological, and technological characterization were identified. The pre-ceramic archaeological sequence shows the following chronology: the oldest occupation occurred between 12.0 and 11.0 cal kBP (Cm facies); this was followed by an occupation between 10.5 and 9.5 cal kBP (Cm, Gt, Gp and Gh facies in three archaeological sites with eleven 14C data), then an occupation between 8.7 and 8.5 cal kBP (Cm facies), another between 5.7 and 5.5 cal kBP, one more between 4.8 and 4.6 cal kBP (Cm facies), and the last between 3.4 and 3.3 cal kBP (Cm and Sm facies). The ceramic phase seems to form a single dense component with the anthropogenic soil formation, and was dated between 0.5 and 0.3 cal kBP (Sm facies). These data present a previously unpublished chronostratigraphic sequence that is unique for the context of open-air sites in inner southern Brazil. • This research presents a unique example of a well-documented archaeological settlement in an open-air, multi-component site situated in a riverine setting in inland Southern Brazil. • It marks the first geoarchaeological study in Southern Brazil's subtropical oxidic environments, utilizing an integrated approach that includes sedimentology, stratigraphy, radiocarbon dating, and the spatial distribution of archaeological features. • The study's sedimentary sequence aids in reconstructing the paleo-environments of the Upper Uruguay River region. • The findings suggest that prehistoric cultural dynamics throughout the Holocene in Southern Brazil were more complex than previously understood. [ABSTRACT FROM AUTHOR]

Hazelnuts were an important foodstuff for Early to Mid-Holocene (Mesolithic) hunter-gatherers all over North-western and Central Europe, mainly thanks to their high fat content, the fact that they are easy to collect and process and produce high areal yields. Based on an extensive and well-dated dataset of charred hazelnut shells, collected on Mesolithic camp-sites from the western Scheldt basin (W Belgium), in this paper the availability of this food resource is studied. Unlike other North(west) European regions, the decline in the exploitation and consumption of hazelnuts in the Scheldt basin appears to start early, from the mid-Boreal period onwards. The available high-resolution pollen and anthracological records indicate that this is presumably related to the rapid and substantial expansion of oak, creating a shady environment which was less favourable for hazel. This paper further examines the impact as well as the possible response of Mesolithic hunter-gatherers to this drastic change in subsistence resources, which arose on top of other challenges during the Boreal, such as increased drought and forest fires, abrupt cooling around 9.3 ka and the possible influx of groups from the adjacent drowning North Sea basin. Human responses possibly ranged from increased mobility, over intensified exploitation of other edible plants to increased fish consumption. The paper ends with emphasizing the importance of high-resolution paleoecological studies on a local/regional level as well as the systematic fine-meshed recovery of plant remains, such as charred hazelnut shells, from archaeological sites. • Hazelnuts were an important food resource during the Mesolithic. • Hazelnut consumption in the Scheldt basin dropped drastically in the mid-Boreal. • This is earlier compared to other areas within NW Europe. • Hazel was outcompeted by the rapid expansion of oak. • Hazel decline might have led to a reduced fat intake and associated health problems. [ABSTRACT FROM AUTHOR]

This paper reviews previous work conducted on Laser Ablation – Inductively Coupled Plasma – Mass Spectrometry (LA-ICP-MS) sourcing 33 Clovis period projectile points from the Gault Site (41BL323) in Central Texas. This paper includes new geochemical data from four new primary geologic sources to increase an Edwards Plateau region chert database to 302 primary geologic samples from 204 samples with which to test against the geochemistry of the 33 Clovis artifacts. These artifacts are then assessed with regards to their form, breakage patterns, and distance to source to suggest a blended model of mobility for Clovis period hunter-gatherers in Central Texas. This data suggests that the pattern of movement across the landscape of the Edwards Plateau for these hunter-gatherers may have been a blended pattern alternating between collector and forager based on changing distribution of resources seasonally. This patterning may have been influenced for the Gault Clovis hunter-gatherers reliant on availability of chert resources as well as ecotonal density and diversity of plants and animals; especially, as gauged by Clovis site types and distribution spread throughout much of the Southern Great Plains. • Clovis hunter-gatherers at the Gault Site used chert from over 300 km away. • Breakage and discard patterns of non-local and local chert suggests long distance mobility. • Gault Clovis hunter-gatherer likely alternated their mobility strategies throughout the year. [ABSTRACT FROM AUTHOR]

Abstract Greenland Ice Sheet (GrIS) covers an area of 1.7 million km2. It has been an important source of climate information and the air temperature history of Greenland is well known. However, the thermal history and temperature conditions of the Greenland bedrock are poorly known. There are only few records on the temperature of the proglacial bedrock and no records on bedrock temperature underneath the ice sheet. The Greenland Analogue Project (GAP) recently investigated hydrological, hydrogeological and geochemical processes in Kangerlussuaq, West Greenland. Because permafrost has a major hydrological impact in Arctic regions, the cryogenic structure of the bedrock was an important research topic. From previous studies it was already known that Kangerlussuaq is located within the zone of continuous permafrost. Temperature profiling in a new research borehole, extending horizontally 30 m underneath the ice sheet, revealed that permafrost is 350 m deep at the ice margin. This result raised the question how far the permafrost extends under the ice sheet? In order to investigate the thermal properties, we made a series of electromagnetic (EM) soundings at the ice margin area – on proglacial area and on the ice sheet – and detected, that subglacial permafrost extends at least 2 km from the ice margin to inland. We also observed a patchy unfrozen sediment layer between the ice and the frozen bedrock. Possible existence of subglacial sediments and their role in ice dynamics has been debated in many recent papers. Our successful campaign shows that geophysics can be used for bedrock investigations through thick ice, which is known to be challenging for electromagnetic methods. Our results provide the first direct evidence supporting the proposed Holocene ice re-advance over frozen ground, and contribute to the discussion on the rapid climate changes in past, to the future of the ice sheet under warming climate and hydrogeology at the ice margin. Highlights • This paper is related to an international research project, the Greenland Analogue Project. • Electromagnetic method was able to discriminate unfrozen and frozen ground. • The first published description of cryogenic structure under continental ice sheet. • Ice re-advance over permafrost evidencing significant Holocene retreat to the east. • A literature review of the Holocene deglaciation of West Greenland. [ABSTRACT FROM AUTHOR]

The southern North Sea is a particularly important area for understanding the behaviour of the British-Irish Ice Sheet (BIIS) during the last glacial cycle. It preserves a record of the maximum extent of the eastern sector of the BIIS as well as evidence for multiple different ice flow phases and the dynamic re-organisation of the BIIS. However, to date, the known ice sheet history and geochronology of this region is predominantly derived from onshore geological evidence, and the offshore imprint and dynamic history of the last ice sheet remain largely unknown. Using new data collected by the BRITICE-CHRONO project this paper explores the origin and age of the Dogger Bank; re-assesses the extent and age of the glaciogenic deposits across the shallow areas of the North Sea between the Dogger Bank and the north Norfolk coast and; re-examines the dynamic behaviour of the BIIS in the southern North Sea between 31.6 and 21.5 ka. This paper shows the core of the Dogger Bank to be composed glaciolacustrine sediment deposited between 31.6 and 25.8 ka. Following its formation the western end of the Dogger lake was overridden with ice reaching ∼54°N where the ice margin is co-incident with the southerly extent of subglacial tills previously mapped as Bolders Bank Fm. This initial ice override and retreat northwards back across the Dogger lake was complete by 23.1 ka, but resulted in widespread compressive glaciotectonism of the lake sediments and the formation of thrust moraine complexes. Along the northern edge of the bank moraines are on-lapped by later phase glaciolacustrine and marine sediments but do not show evidence of subsequent ice override. The shallow seafloor to the west and southwest of the Dogger Bank records several later phases of ice advance and retreat as the North Sea Lobe flowed between the Dogger Bank and the Yorkshire/Lincolnshire coasts and reached North Norfolk. New optically stimulated luminescence (OSL) ages from Garrett Hill on outwash limit the arrival of the BIIS on the Norfolk coast to 22.8–21.5 ka. Multiple till sheets and chains of moraines on the seafloor north of Norfolk mark dynamic oscillation of the North Sea Lobe margin as it retreated northwards. This pattern of behaviour is broadly synchronous with the terrestrial record of deposition of subglacial, glaciofluvial and glaciolacustrine sediments along the Yorkshire coast which relate to post Dimlington Stadial ice marginal oscillations after 21.5 ka. With respect to forcing mechanisms it is likely that during the early phases of the last glacial maximum (∼30-23ka) the interaction between the southern margin of the BIIS and the Dogger Lake was critical in influencing flow instability and rapid ice advance and retreat. However, during the latter part of the last glacial maximum (22–21 ka) late-phase ice advance in the southern North Sea became restricted to the western side of the Dogger Bank which was a substantial topographic feature by this time. This topographic confinement, in addition to decoupling of the BIIS and the Fennoscandian Ice Sheet (FIS) further north, enabled ice to reach the north Norfolk coast, overprinting the seabed with late-phase tills of the Bolders Bank Fm. Highlights • New acoustic and chronological data from the southern North Sea casts fresh light on British-Irish Ice Sheet history. • The Dogger Bank is composed of glaciolacustrine sediment heavily glaciotectonised between 31.6 and 23.1 ka. • A key trigger for the re-advance of the British-Irish Ice Sheet at 21.5 ka was the catastrophic drainage of Dogger Lake. [ABSTRACT FROM AUTHOR]

Abstract This paper provides an overview of stable isotope analysis (H, C, N, O, Si) of the macro- and microscopic remains from aquatic organisms found in lake sediment records and their application in (palaeo)environmental science. Aquatic organisms, including diatoms, macrophytes, invertebrates, and fish, can produce sufficiently robust remains that preserve well as fossils and can be identified in lake sediment records. Stable isotope analyses of these remains can then provide valuable insights into habitat-specific biogeochemistry, feeding ecology, but also on climatic and hydrological changes in and around lakes. Since these analyses focus on the remains of known and identified organisms, they can provide more specific and detailed information on past ecosystem, food web and environmental changes affecting different compartments of lake ecosystems than analyses on bulk sedimentary organic matter or carbonate samples. We review applications of these types of analyses in palaeoclimatology, palaeohydrology, and palaeoecology. Interpretation of the environmental ‘signal’ provided by taxon-specific stable isotope analysis requires a thorough understanding of the ecology and phenology of the organism groups involved. Growth, metabolism, diet, feeding strategy, migration, taphonomy and several other processes can lead to isotope fractionation or otherwise influence the stable isotope signatures of the remains from aquatic organisms. This paper includes a review of the (modern) calibration, culturing and modelling studies used to quantify the extent to which these factors influence stable isotope values and provides an outlook for future research and methodological developments for the different examined fossil groups. Highlights • Review of stable isotopes in the remains of aquatic organisms in lake sediments. • Stable O and Si isotopes in biogenic silica (diatoms). • Stable C and O isotopes in biogenic carbonates (ostracods, molluscs, charophytes). • Stable H, C, N and O isotopes in aquatic plant, invertebrate, and fish remains. • Outlook on controlled experiments, calibrations, taphonomic studies, and modelling. [ABSTRACT FROM AUTHOR]

The Piacenzian – Gelasian transition is a time of profound changes in the Earth's climatic regime, epitomized by the definitive establishment of large ice caps in the Northern Hemisphere and the beginning of the "ice ages" at ca. 2.6 Ma. This event is sharply documented in δ18O records globally by a prominent triplet of severe glacial events (MIS 100, 98 and 96) that approximate the base of the Gelasian Stage. We have reconstructed a multi-species planktic and benthic foraminiferal δ18O and δ13C record from the Monte San Nicola section (Sicily) across the Piacenzian/Gelasian boundary, with the purpose of better constraining in time the main marker criteria for recognition of the Gelasian GSSP (Global Boundary Stratotype Section and Point) and investigating in detail the paleoclimatic and paleoceanographic response of the central Mediterranean to the definitive onset of the Northern Hemisphere Glaciation. Our results confirm the reliability and usability of the criteria originally proposed for defining the Gelasian GSSP, and significantly improve their chronology and chronostratigraphic positioning. Beyond an obvious alternation of obliquity-driven glacial-interglacial cycles, our isotopic record unraveled a pervasive climate variability in the suborbital time domain, the origin of which is still ambiguous. Altogether data presented in this paper provide the first high resolution isotopic records shedding new light both on the stratigraphic and paleoclimatic evolution of the Central Mediterranean area at the beginning of the Northern Hemisphere Glaciation. • A multispecies d18O and d13C record was reconstructed from Monte San Nicola (Sicily). • First isotopic record ever across the base Gelasian, ca. 2.7 to 2.5 Ma (MIS G5 to MIS 99). • Stratigraphic position of the Gelasian GSSP and its proxies was confirmed, their age improved. • Suborbital variability was found in glacial MIS 104 and 100, probably driven by the N. Atlantic. • Suborbital signals also occur in interglacial MIS G1, with ambiguous origin. [ABSTRACT FROM AUTHOR]

The formation and evolutionary history of intracontinental, tideless sea barrier coasts is still poorly known in comparison to open-ocean and tidal sea barrier systems. This paper describes the morpho-geological structure of the barriers and its substrate along a 90-km section of the middle part of the Polish southern Baltic coast. The main goal of the study is a better insight into the evolution of the barriers in case of sand scarcity and relations to sea level changes. The study area was examined by analysis of the published and historical data from 120 borehole profiles supplemented by new 18 core drillings. In addition to lithological and biostratigraphical data, a large set of radiocarbon ages was acquired and analysed. The barriers during its whole middle and late Holocene history were retrogradational despite of varied geological and morphological features of its substrate. The average rate of barrier's retreat has shown considerable variation in a close relation to the rates of sea-level rise. During the period 8500-7500 yr b2k when the sea level rose by 6–5 mm/yr, the coast retreated ca. 4.6–3.5 m/yr. Between 7500 and 6000 yr b2k, the sea-level rise slowed down to ca. 1.7 mm/yr and the rate of coastline retreat fell to ca. 1.0 m/yr. During the last 6000 years, coastal retreat slowed down to ca. 0.3 m/yr as the average sea level rise was ca. 0.5 mm/yr. The permanent retrogradational history of the barrier coast, even in the case of sand availability in the barrier's substrate, is explained by the existence of a divergence zone of longshore currents and a related source zone for the alongshore sandy streams. The divergence zone is present within the study area not only today, but it has existed most probably also at least since the beginning of the late Holocene. As a result, the erosional trend (sand scarcity) dominates here, which contributes to the presence of retrogradational barriers. • Recognition of morpho-geological structure of the barrier and its substrate. • New middle and late Holocene relative sea-level curve from southern Baltic Sea. • The evolution of the barriers in case of sand scarcity and relations to sea level changes. [ABSTRACT FROM AUTHOR]

The Storegga tsunami (c. 8150 cal BP) is geologically well attested from various isolation basins across the west Norwegian coast. Ascertaining the impact it had upon the Mesolithic peoples who lived through it, however, remains a difficult proposition; one further complicated by broadly synchronic processes of climate change and sea-level rise. This paper presents a regional scale approach to addressing this matter through a multiproxy study comprising: 1) the performance of a new numerical tsunami run-up simulation for six different focus areas; 2) characterising the impact of the tsunami upon key resource base ecosystems; 3) characterising the potential for complication arising from contemporaneous processes of environmental change caused by the '8.2 ka BP event', and sea-level rise associated with the early-mid Holocene 'Tapes' transgression, and 4) the reconstruction of temporal traditions in site location relative to the contemporary palaeoshoreline within the six focus areas used for the numerical simulation. Severity of run-up and inundation is found to be acutely variable according to coastal geomorphology and topography, bathymetry, and proximity to the propagation centre. Although the tsunami may have had a severely negative impact upon some coastal inhabitants and ecosystems, it is not possible from current evidence to reliably infer unequivocal impacts relating to the tsunami through the archaeological record, nor is it clear that impact upon key ecosystem components was necessarily lasting, widespread, or even entirely negative for coastal hunter-fisher-gatherers. Variability in projected run-up and settlement histories highlight the appeal of regionally based approaches to reconstructing impact, at least where data resolution may permit. The tsunami does not appear to have prompted a lasting shift away from coastally oriented ways of life. • First results of onshore run-up modelled for Storegga tsunami (8.15 kya) in W. Norway. • Run-up and consequent inundation varied considerably according to geomorphology. • Regional variability in archaeological site locations from north to south. • Archaeological data show that shore-bound settlements continued after the tsunami. • Environmental damage was probably severe, but variable in extent and short-lived. [ABSTRACT FROM AUTHOR]

The evolution of global temperature during Holocene is crucial for understanding the mechanisms of climate change and future climate trends. However, there is a discrepancy between the temperature trends reconstructed from proxy and model, which is attributed to the seasonal biases and the appearance of the Holocene thermal maximum was dominated by the temperature of the warm season. In this paper, fossil charcoal assemblages from the southern Chinese Loess Plateau were analysed to provide quantitative mean annual temperatures (MAT) and four-season temperature records during 6.55–3.45 cal ka BP. The results indicate that both the seasonal temperatures and MAT during the middle Holocene reached warm peaks between 5.55 and 5.35 cal ka BP. The similar trend between the winter temperature (WIT) and MAT denotes the highest contribution of WIT changes to the MAT in the study area since the mid-Holocene. • Flowering functional group was used to reconstruct spring-autumn temperature. • Nonhardy plants were used to reconstruct winter temperature. • Winter temperature contributed the most to the annual temperature since mid-Holocene. • Middle-Holocene temperature was not showing a long-term warming trend. [ABSTRACT FROM AUTHOR]

Pleistocene fluvial sequences have been recognised in some regions of México as an important source of information on past environmental change using a wide range of proxies. However, this has not been attempted in Mexico's southernmost state of Chiapas until the current paper, where the main aim is to describe and date five new Late Pleistocene fossil rich sequences and to interpret their paleoenvironmental record and changes that they indicate. This interpretation is based on the sedimentology, pollen record and stable isotopes from vertebrate fossils together with the radiocarbon dating of the fluvial sediments. At Los Mangos and El Bajión fossil sites the fluvial sediment record reported here includes a conspicuous layer with aerodynamic Fe magnetic microspherules associated with the Younger Dryas (YD) meteorite impact which adds to the type of paleoenvironments in which such meteorite impacts have been recognised. The sediment dating indicates that the fossiliferous sites are Late Pleistocene in age, and they add new locations and information for México for this climatic phase. • We present a revisión, dating and interpretation of the Late Pleistocene megafauna from Chiapas State, southern Mexico. • Five fossiliferous fluvial sequences showed important changes in the river direction and energy during the Late Pleistocene. • Late Pleistocene paleoenvironment was mainly of savanna with sporadic trees. • First record of the Younger Dryas Meteorite layer preserved in fluvial sediments in Central America. • The megafauna assemblages are of Rancholabrean age. [ABSTRACT FROM AUTHOR]

This paper introduces a series of articles assembled in a special issue that explore Holocene climate evolution, as recorded in lakes on the Island of Amsterdamøya on the westernmost fringe of the Arctic Svalbard archipelago. Due to its location near the interface of oceanic and atmospheric systems sourced from Arctic and Atlantic regions, Amsterdamøya is a key site for recording the terrestrial response to marine and atmospheric changes. We employed multi-proxy approaches on lake sediments, integrating physical, biogeochemical, and isotopic analyses to infer past changes in temperature, precipitation, and glacier activity. The results comprise a series of quantitative Holocene-length paleoclimate reconstructions that reveal different aspects of past climate change. Each of the four papers addresses various facets of the Holocene climate history of north-western Svalbard, including a reconstruction of the Annabreen glacier based on the sedimentology of the distal glacier-fed lake Gjøavatnet, a reconstruction of changing hydrologic conditions based on sedimentology and stratigraphy in Lake Hakluytvatnet, reconstruction of summer temperature based on alkenone paleothermometry from lakes Hakluytvatnet and Hajeren, and a hydrogen isotope-based hydrological reconstruction from lake Hakluytvatnet. We also present high-resolution paleomagnetic secular variation data from the same lake, which document important regional magnetic field variations and demonstrate the potential for use in synchronizing Holocene sedimentary records in the Arctic. The paleoclimate picture that emerges is one of early Holocene warmth from ca. 10.5 ka BP interrupted by transient cooling ca. 10-8ka BP, and followed by cooling that mostly manifested as two stepwise events ca. 7 and 4 ka BP. The past 4ka were characterized by dynamic glaciers and summer temperature fluctuations decoupled from the declining summer insolation. [ABSTRACT FROM AUTHOR]

Multi-proxy analyses and lithology of two cores, MRS-CS18 and MRS-CS27, from the İmralı Basin of the Sea of Marmara (SoM) provide novel information on environmental conditions, relative sea level, and sill depths of the straits of Bosporus and Dardanelles during the Marine Isotope Stages (MIS) 5 and 6. The fossil and multi-proxy geochemical records show that lacustrine conditions prevailed in the SoM during most of MIS 6, from 171 to 134 ka BP, and that the transition to marine conditions during Termination II took place at ∼134.06 ± 1.10 ka BP. MIS 5 interstadials a, c, and e witnessed the formation of three sapropels (MSAP-2, MSAP-3 and MSAP-4) under suboxic to anoxic marine conditions, whereas during stadials MIS 5b (∼94–86) and MIS 5d (∼112–105 ka BP), lacustrine and marine conditions with deposition of sediments having relatively low TOC contents (<2%) prevailed, respectively. Consideration of the global sea level, together with the timing of the marine reconnection of the SoM during Termination II and persistence of the marine conditions during MIS 5, except for MIS 5b and later part of MIS 5a, suggests that the Dardanelles sill depth was at ∼ -75 ± 5 m during the reconnection at Termination II and at −55 ± 5 m during most of MIS 5. On similar considerations of the Black Sea marine reconnections and disruptions during the MIS 5, a sill depth of −35 to −40 m (similar to the present day depth) is indicated for the Bosporus Strait. The SoM geochemical proxy records correlate well with the regional terrestrial and marine records and the NGRIP oxygen isotope record with its Stadial and Interstadial phases, showing the common effect of the North Atlantic climatic events triggered by the perturbations in the Atlantic Meridional Overturning Circulation. However, the amplitude of the oscillations recorded in the SoM during MIS 6 (Penultimate Glacial Period) is relatively small compared to the MIS 4 to MIS 2 (Last Glacial Period). • First paper to discuss the paleoceanography of an important gateway during MIS 5 and MIS 6. • First complete documentation of MIS 5 sapropels and their origin. • Sea/water level changes and timing of marine connection during Termination II. • Correlation of the Sea of Marmara records with regional and global records. • Reporting of a new unidentified tephra. [ABSTRACT FROM AUTHOR]

With the onset of the Last Glacial Maximum (LGM), hunter-gatherers of the so-called Iberomaurusian techno-complex appeared in what is now the Mediterranean Maghreb. During a period of about seven thousand years, these groups left sandy occupation layers in a limited number of archaeological sites, while at the beginning of Greenland Interstadial (GI) 1, the sudden shift towards the deposition of shell-rich sediments and the increase in number of sites document clear changes in subsistence strategies as well as occupation density. It is highly likely that these shifts in human behaviour are related to paleoenvironmental changes in the area, which, so far, are poorly documented in geological and archaeological archives. Ifri El Baroud (Gunpowder Cave, northeast Morocco) contains a well-stratified archaeological sequence covering both phases of Iberomaurusian occupation separated by a sharp sedimentary change. In this paper, new chronological data and detailed investigations on site formation using sedimentology and micromorphology are presented. In addition, results of the analyses of fauna, pollen, macrobotanical remains, and phytoliths are included. This data contributes to a full-scale paleoenvironmental interpretation of the site's archaeological deposits, highlighting the fluctuations of landscape conditions at the transition from the cold-arid Greenland Stadial (GS) 2.1 to the warmer and moister Greenland Interstadial 1. • The site Ifri El Baroud contains a sequence of early and late Iberomaurusian deposits. • The Iberomaurusian sequence spans the interval between roughly 23 ka and 13 ka cal BP. • Sedimentological and environmental shifts are recognized. • Phytoliths, faunal and macrobotanial remains highlight specific human behaviours. [ABSTRACT FROM AUTHOR]

The Levant region of Israel, located along the Eastern Mediterranean Sea, is characterized by Mediterranean climate, but sixty km eastwards towards the Dead Sea Rift Valley (DSRV), the region rapidly becomes a 'rain shadowʼ desert. Speleothems from the Mediterranean climate zone continuously grew throughout several glacial/interglacial cycles, indicating that water was always available in the unsaturated zone. Their δ18O variations match global and regional climate changes, with the Eastern Mediterranean Sea being the major control on their δ18O values, as evident from the similarity between the speleothems and the planktonic foraminifer G. ruber records. In contrast, speleothems along the central and southern segments of the DSRV grew mainly during last glacial periods coinciding with the higher stands of Lake Lisan, the precursor of the present-day Dead Sea. This paper discusses the newly discovered Zalmon Cave speleothems, located in the northern segment of the DSRV shedding light on the hydrological conditions along the rift during last glacial. Unlike speleothems located further south along the DSRV, Zalmon Cave speleothems grew both during glacial and interglacial periods. However, during last glacial their δ18O values, shifted to lower values by ∼1–2‰ relative to speleothems from central Israel coinciding also with the largest difference in δ18O values between Zalmon Cave speleothems and the marine record. The data suggest that a change of the westerlies' storm tracks occurred during most of the last glacial period, which resulted in increased rainfall in the northern DSRV providing freshwater input during the otherwise relatively 'drierʼ glacial. • Speleothems were deposited almost continuously in the northern Dead Sea Catchment. • Interglacial climatic conditions in the Lower Galilee and central Israel were similar. • Glacial climatic conditions in the Lower Galilee were more humid than central Israel. • The Levant experienced a southern shift in storm tracks during the Last Glacial. • Differences in sea-land isotopic relationships indicate changes in precipitation. [ABSTRACT FROM AUTHOR]

The progradation of the Medjerda delta has been the subject of many studies since the 19th century. The scale and the rapidity of this phenomenon interested researchers in various fields early on, such as geomorphology, geology, palaeogeography, history, archaeology, or geoarchaeology. Indeed, the delta prograded by around 10 km over 3 millennia. At the time of its foundation supposedly at the end of the 12th century BC, the Phoenician city of Utica was located on a promontory bathed by the sea, but the sediments carried by the Medjerda progressively sealed the bay, leaving the tip of the Utica promontory now 10 km inland. This area is therefore an exception to the general pattern along the Tunisian coast, since as over the same period everywhere else there is a regression of the coastline, owing to a sea level rise of several decimeters. Based on multi-proxy analyses of two coring transects, this paper aims to reconstruct the palaeoenvironments and the palaeogeography of the Medjerda delta's progradation since the mid-Holocene, some aspects of which are described in ancient sources. The results highlight in particular an episode of high-intensity flooding around the 4th century AD, which is consistent with episodes of high floods and an increase in sedimentation rates recorded in the watershed at the end of the Roman period. The gradual abandonment of the city of Utica can certainly be related to the activity of the Medjerda River, but our results show that it is because of an increase of fluvial sediment contribution in connection with an erosive crisis in the headwaters, and not because of the change of course of the river, which had occurred long before. • The Medjerda delta's progradation reached 10 km over 3 millennia. • The reconstruction of the palaeogeography helps to better understand the foundation of Utica and its gradual abandonment. • A wide bay around Utica since the 6th mill. BC, progressively sealed by the alluvium of the Medjerda from the 1st c. BC. • The results highlight in particular an episode of high-intensity flooding around the 4th century AD. • The isolation of Utica from the sea is due to an erosive crisis generated by climatic and probably anthropogenic factors. [ABSTRACT FROM AUTHOR]

The Cape Floristic Region (CFR) is one of the world's major biodiversity hotspots, and much work has gone into identifying the drivers of this diversity. Considered regionally in the context of Quaternary climate change, climate stability is generally accepted as being one of the major factors promoting the abundance of species now present in the CFR. However, little direct evidence is available from the region, and responses to changes in global boundary conditions have been difficult to assess. In this paper, we present new high-resolution stable isotope data from Pakhuis Pass, in the species-rich western CFR, and contextualise our findings through comparison with other records from the region. Combined, they indicate clear, coherent changes in regional hydroclimate, which we relate to broader forcing mechanisms. However, while these climate change events share similar timings (indicating shared macro-scale drivers), the responses are distinct between sites, in some cases expressing opposing trends over very short spatial gradients (<50 km). We describe the evolution of these trends, and propose that while long-term (105 yr) general climatic stability may have fostered high diversity in the region through low extinction rates, the strong, abrupt changes in hydroclimate gradients observed in our records may have driven a form of allopatric speciation pump, promoting the diversification of plant lineages through the periodic isolation and recombination of plant populations. • New high resolution δ15N data from rock hyrax middens from the western Cape Floristic Region. • Position of the southern westerlies apparent as a strong determinant of regional hydroclimates. • High amplitude, rapid changes in hydroclimate are revealed in the region. • Opposing responses to shared climate change events establish highly variable climate gradients. [ABSTRACT FROM AUTHOR]

It has long been assumed that the last glacier expansion in the Scottish Highlands, the Loch Lomond Readvance (LLR), resulted from a cold reversal that was broadly coeval with the 'Younger Dryas' episode. This view has recently been challenged, with the suggestion that glacier ice had disappeared from Rannoch Moor, one of the main ice accumulation centres in the SW Scottish Highlands, by as early as 12.5 ka, i.e. within the first half of the 'Younger Dryas'. Here we present new radiocarbon, tephrostratigraphical and pollen-stratigraphical evidence from one of the key sites on Rannoch Moor, the results of an experiment designed to test this hypothesis. Our results not only contradict that concept, but are fully compatible with other evidence from the SW Scottish Highlands that suggests that the LLR glaciers in this area continued to expand until towards the end of the 'Younger Dryas' period, and may have persisted in some places after the onset of the Holocene. We consider the possible reasons for this marked divergence in chronology, a matter that is crucial to resolve because the precise timing of the demise of the LLR glaciers has important palaeoclimatic and other implications. In the wider context, we also draw attention to problems with the general use of the term 'Younger Dryas' and why we regard the Greenland stratotype unit and term 'Greenland Stadial 1' (GS-1) a more secure stratigraphic comparator. • This paper is about one of the last major icefields to occupy the Scottish Highlands. • Our new data suggest this icefield was an extensive ice body until ∼11,500 years ago. • These results run counter to recent publications advocating much earlier ice decay. • The results have important palaeoclimatic and age-calibration implications. • This study also exemplifies problems with the general use of the term 'Younger Dryas'. [ABSTRACT FROM AUTHOR]

This paper presents the archaeobotanical and archaeozoological data of the 6th to 4th millennia cal BC sequence recently documented at Dehesilla Cave, and puts forward an interdisciplinary approach to the significant ecological patterns from this key archaeological site in the Southern Iberian Peninsula throughout the entire Neolithic period. indicate an ecological scenario characterised mainly by oak and wild olive forests, and human populations with agricultural practices and herds of mainly sheep and goats. However, this general panorama must have undergone several remarkable fluctuations. The first Neolithic populations of Dehesilla Cave, dated around the mid-6th millennium cal BC and linked to the Mediterranean impressa pottery complex, do not yet display evidences of agriculture, while all of the subsequent Early Neolithic levels indicate a model of small-scale populations with a mixed economy but still with a greater component of livestock. The second quarter of the 5th millennium cal BC shows a marked accentuation of the monoculture of naked wheats, which could have been related to the transition from an intensive to an extensive farming system. This may have entailed a selective pressure on the environment, leading to a large deforestation spanning the second half of the 5th millennium cal BC and the constitution of relatively open thermo-Mediterranean forests with a physiognomy similar to that of the dehesa. These ecological patterns are discussed within a review of the current state of the art of the use of plant and animal resources by the Neolithic human populations in the southern regions of the Iberian Peninsula. • A multidisciplinary archaeobotanical and archaeozoological approach is carried out. • A key Neolithic site in the Southern Iberian Peninsula is excavated and examined. • The first local Neolithic populations show evidence of livestock without agriculture. • A monoculture based on naked wheats was successful during 4800-4500 cal BC. • Human pressure on ecosystems led to the spread of open thermo-Mediterranean forests. [ABSTRACT FROM AUTHOR]

This paper presents new results of terrestrial cosmogenic nuclide dating of erratics in northern Poland. We report the first exposure ages of erratics located on the pre-Local Last Glacial Maximum and the Local Last Glacial Maximum moraines in Poland. Published radiocarbon ages are calibrated and used as a background indicator of the possible time window for the Local Last Glacial Maximum. The terrestrial cosmogenic nuclide exposure ages presented in this study indicate that: (1) exposure ages of erratics located on the pre-Local Last Glacial Maximum moraines (15.9 ± 1.4 to 101.7 ± 8.5 ka) are not clustered around any specific time interval, (2) the age of the ice sheet retreat from the Local Last Glacial Maximum ice limit in western Poland is 20.7 ± 0.8 ka and the probable duration of the Local Last Glacial Maximum in western and central Poland is between ∼25 ka and ∼21 ka, (3) the age of the ice sheet retreat from the Local Last Glacial Maximum ice limit in eastern Poland is 17.3 ± 0.5 ka and the probable duration of the Local Last Glacial Maximum in eastern Poland is between ∼22 ka and ∼18 ka. Our results show that the Local Last Glacial Maximum ice limit in western and central Poland is probably ∼3 ka older than in eastern Poland. Image 1 • A new set of 34 TCN exposure ages of erratics in northern Poland. • SIS retreat from the Leszno (Brandenburg) Phase at 20.7 ± 0.8 ka. • SIS retreat from the Poznań (Frankfurt) Phase at 17.3 ± 0.5 ka. • The Local LGM in western and central Poland (Leszno Phase) 25–21 ka. • The Local LGM in eastern Poland (Poznań Phase) 22–18 ka. [ABSTRACT FROM AUTHOR]

The different archeostratigraphic units of the Bois-de-Riquet site (Lézignan-la-Cèbe, southern France) have yielded a range of stone tools in association with rich large-mammal assemblages. The oldest stone tools are from archeostratigraphic unit US2, which was initially dated to <1.57 Ma and with later, more detailed dating assigned to the interval between 1.4 and 1.1 Ma. This paper presents results from all small vertebrate fossil remains recovered from US2. The faunal list now comprises the arvicolines Allophaiomys nutiensis , Mimomys savini , Stenocranius gregaloides , Iberomys huescarensis and Terricola arvalidens , the murids Apodemus sylvaticus and Castillomys rivas , the hamster Allocricetus bursae , the toad Epidalea calamita , the snake Vipera sp. and an indeterminanble lizard (Lacertidae indet.). Based on the chronological ranges known to date, the arvicolinae species indicate that the age of US2 is between 1 and 0.9 Ma. This places this site among the southern European localities associated with the first arrivals of hominins in Europe, like Sierra de Atapuerca (Spain), Barranco León D and Fuente Nueva 3 (Spain), Cueva Negra del Estrecho del Río Quípar (Spain), Barranc de la Boella (Spain), Vallaparadis (Spain), Le Vallonnet (France) and Pirro Nord (Italy). The fauna analysis allows us to reconstruct the paleoenvironment of the area surrounding the site during its formation and shows a dominance of open and humid meadow landscape, with scarce areas of humid forest, and woodland margin relatively far from the water's edge. • The small vertebrate faunal list from Bois-de-Riquet site (France) has been enlarged. • New data indicate an age between 1 and 0.9 Ma for the site. • Landscape was dominated by open and humid meadow, with scarce areas of humid forest. [ABSTRACT FROM AUTHOR]

This paper presents results of a multidisciplinary research initiative examining human responses to environmental change at the intersection of the southern coastal plain of the Caspian Sea and the foothills of the Alborz Mountains during the terminal Pleistocene and early Holocene. Our palaeo-environmental analysis of two sedimentary cores obtained from a lagoon in close proximity to four caves, occupied by human groups during the transition from hunting and gathering to food-producing ways of life in this region, confirms Charles McBurney's 1968 hypothesis that when Caspian Sea levels were high, Mesolithic hunters were reliant on seal and deer, but as water levels receded and a wide coastal plain emerged, hunters consumed a different range of herbivorous mammalian species. Palynological evidence obtained from these two cores also demonstrates that the cool and dry climatic conditions often associated with the Younger Dryas stadial do not appear to have been extreme in this region. Thus, increasingly sedentary hunting and gathering groups could have drawn on plant and animal resources from multiple ecological niches without suffering significant resource stress or reduced population levels that may have been encountered in neighbouring regions. Our analyses of botanical, faunal and archaeological remains from a recently-discovered open-air Mesolithic and aceramic Neolithic site also shows an early process of Neolithization in the southern Caspian basin, which was a very gradual, low-cost adaptation to new ways of life, with neither the abandonment of hunting and gathering, nor a climatic trigger event for the emergence of a low-level, food-producing society. • Southern coastal plain of Caspian Sea at foothills of Alborz Mountains. • Multidisciplinary analyses of two lagoonal cores and five archaeological sites. • Mesolithic and Neolithic period diets linked to changes in Caspian Sea levels. • Palynology shows benign Younger Dryas with diverse ecological niches. • Multiple lines of evidence for long-enduring process of Neolithization. [ABSTRACT FROM AUTHOR]