15 results on '"Rodríguez-Estrella, Tomás"'
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2. The Pleistocene and Holocene records of the Mazarrón Basin (SE Spain)
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Torres, Trinidad, Ortiz, José E., Sánchez-Palencia, Yolanda, Ros, Milagros, Navarro, Francisca, López-Cilla, Ignacio, Galán, Luis A., Ramallo, Sebastián, Rodríguez-Estrella, Tomás, and Blázquez, Ana
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- 2020
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3. Ancient Forests in European drylands: Holocene palaeoecological record of Mazarrón, south-eastern Spain
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Carrión, José S., Fierro, Elena, Ros, Milagros, Munuera, Manuel, Fernández, Santiago, Ochando, Juan, Amorós, Gabriela, Navarro, Francisca, Rodríguez-Estrella, Tomás, Manzano, Saúl, González-Sampériz, Penélope, and Moreno, Ana
- Published
- 2018
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4. An Approach to a Punic Harbour Area in Cartagena (Southeast of Spain)
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Ramallo‑Asensio, Sebastián F., Torres, Trinidad, Ros‑Sala, María Milagrosa, Sánchez-Palencia, Yolanda, Andreo, Felipe Cerezo, Ortiz, José Eugenio, Navarro-Hervás, Francisca, Trojan, Michael, Manteca, José Ignacio, and Rodríguez-Estrella, Tomás
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paleotopography ,paleoenvironmental analysis ,ancrage naturel ,logs ,natural anchorage ,biomarkers ,analyse paléoenvironnementale ,port ,paléotopographie ,biomarqueurs ,rondins ,harbour - Abstract
The Greek-Latin authors present Qarthadašt (Cartagena) as one of the main bastions of territorial control of the Carthaginians in Iberia. It had easy and close maritime relationship with Africa, the Strait area and Ibiza, and was located near rich silver deposits. These two reasons are determining factors in its prosperity. The geomorphological evolution and a history without interruption have notably changed the original physiognomy of the site, where the city was founded around 228 BC. This paper focuses on the study of the western sea front of the Cartagena bay. There borehole cores and foundation excavation section allowed to define a strong anthropic action dated at the second half of 3rd century BC. Paleontological (ostracodes and molluskas), geochemical (biomarkers and amino acid racemization) and sedimentological studies allowed to describe a Holocene dated environment with strong continental influence to the north, more marine to the south. Logs and branches sharpened into a point driven into a muddy bottom could be related to a first anthropic activity in the area in a shallow embayment that due to the hydrodynamics change evolved into a thick sand accumulation. Les auteurs gréco-latins présentent Qarthadašt (Carthagène) comme l’un des principaux bastions du contrôle territorial des Carthaginois en Ibérie. La ville était située à proximité de riches gisements d’argent et entretenait des relations maritimes étroites avec l’Afrique, la région du Détroit et Ibiza. Ces deux facteurs ont été déterminants pour favoriser sa prospérité. L’évolution géomorphologique du site et le fait qu’il ait eu une occupation historique constante depuis sa fondation vers 228 av. J.-C., ont notamment modifié la physionomie originale de l’emplacement. Cet article analyse le développement du front maritime occidental de la baie de Carthagène. Grâce à des carottages géologiques et une section d’excavation il a été possible de définir une forte action anthropique datant de la seconde moitié du IIIe siècle avant J.-C. Des études paléontologiques (ostracodes et mollusques), géochimiques (biomarqueurs et racémisation des acides aminés) et sédimentologiques ont permis de décrire un environnement daté de l’Holocène caractérisé par une forte influence continentale au nord, plus marine au sud. Des rondins et des branches aiguisés à une extrémité et enfoncées dans un fond vaseux pourraient être liés à une première activité anthropique dans la zone dans une baie peu profonde. Celle-ci, en raison du changement hydrodynamique, aurait évolué vers une épaisse accumulation de sable.
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- 2022
5. The excavation of buried articulated Neanderthal skeletons at Sima de las Palomas (Murcia, SE Spain)
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Walker, Michael J., López-Martínez, Mariano V., Ortega-Rodrigáñez, Jon, Haber-Uriarte, María, López-Jiménez, Antonio, Avilés-Fernández, Azucena, Polo-Camacho, Juan Luis, Campillo-Boj, Matías, García-Torres, Jesús, Carrión García, José S., San Nicolás-del Toro, Miguel, and Rodríguez-Estrella, Tomás
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- 2012
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6. Development of the marine Holocene environment in a drowned paleovalley with final anthropic influence in the Cartagena Bay (Murcia, SE Spain).
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Torres, Trinidad, Ortiz, José E, Ramallo, Sebastián, Ros, Milagros, Sánchez-Palencia, Yolanda, Blázquez, Ana, Cerezo, Felipe, López-Cilla, Ignacio, Galán, Luis A, Borrego, Ángeles G, Ruiz-Zapata, Blanca, José Gil, María, Manteca, Ignacio, and Rodríguez-Estrella, Tomás
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HOLOCENE Epoch ,COASTAL plains ,MARINE biodiversity ,SEDIMENT analysis ,ANALYTICAL geochemistry ,MARSHES ,FLUVIAL geomorphology - Abstract
Sedimentological, paleobiological, mineralogical, and geochemical analyses of a sediment core retrieved on the seafront of Cartagena Bay were performed after high-resolution sampling. A wide series of dates obtained through radiocarbon and amino acid racemization proved that the Holocene record on the analyzed core began at ca. 7300 yr cal BP. Reinterpretation of the marine seismic profiles indicated that the beginning of this transgression was channeled along erosive paleochannels excavated on a coastal plain of, at least, MIS5c age. The Holocene paleoenvironmental evolution consisted of a first period marked by marine conditions with strong inputs from a fan delta linked to the reorganized fluvial network that occurred after the sudden rise of the base level, which caused a growing sedimentary prism. Later, the full marine environment was reflected in the development of a Posidonia - Cymodocea meadow hosting a rich biodiversity of marine species (mollusks, foraminifera, ostracoda). Around 3800 yr cal BP, the area underwent a profound change and a silting process started to alter the conditions, turning the area into a paucispecific brackish marsh environment in which mud deposition was dominant. Since Carthaginian times, arrangement works locally affected the record, allowing the arrival of some marine species due to port work (dredging) undertaken to gain depth and showing anthropic influence. [ABSTRACT FROM AUTHOR]
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- 2022
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7. Gypsum karst evolution in a diapir: a case study (Pinoso, Alicante, Spain)
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Rodríguez-Estrella, Tomás and Pulido-Bosch, Antonio
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- 2010
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8. Miocene tectono-sedimentary evolution of the eastern external Betic Cordillera (Spain).
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Martín-Martín, Manuel, Guerrera, Francesco, Rodríguez-Estrella, Tomás, Serrano, Francisco, Alcalá, Francisco J., Raffaelli, Giuliana, and Tramontana, Mario
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MIOCENE Epoch ,GEODYNAMICS ,SEDIMENTARY rocks ,STRUCTURAL geology - Abstract
An interdisciplinary study of Miocene successions in the eastern External Betic Zone (South Iberian Margin) was carried out. Evidences of syn-sedimentary tectonic activity were recognized. The results enabled a better reconstruction of the stratigraphic architecture (with an improved chronostratigraphic resolution) in the framework of the Miocene foredeep evolution of the eastern EBZ. Two main depositional sequences were dated as uppermost Burdigalian-upper Serravallian p.p. and middle-upper Tortonian. p.p., respectively. The vertical and lateral diversification of lithofacies associations and thicknesses resulted from the syn-depositional tectonic complexity of the area. A great variety of sedimentary depositional realms is due to different subsidence rates, and the growing of anticlines and synclines during the Langhian p.p.-Serravallian. After a regression with an early Tortonian erosional gap, platform to hemipelagic realms developed during the middle Tortonian. The end of the sedimentation coincided with the emplacement of an important olisthostrome-like mass consisting of Triassic material related to either the development of thrust systems or diapirs emerged in the middle-late Tortonian, during the nappe emplacement. Correlations with other external sectors of the Betic Chain, and the external domains of the Rif, Tell, and northern Apennine Chains highlighted a similar Miocene foredeep evolution during the building of these orogens. [ABSTRACT FROM AUTHOR]
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- 2018
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9. Rethinking stratigraphy and site formation of the Pleistocene deposit at Cueva Negra del Estrecho del Río Quípar (Caravaca de la Cruz, Spain)
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Angelucci, Diego E., Anesin, Daniela, López Martínez, Mariano, Haber Uriarte, María, Rodríguez Estrella, Tomás, and Walker, Michael J.
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- 2013
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10. Reconstructing human-landscape interactions in the ancient Mediterranean harbour of Cartagena (Spain).
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Torres, Trinidad, Ramallo, Sebastián, Sánchez-Palencia, Yolanda, Ros, Milagros, Ortiz, José E., Navarro, Francisca, Cerezo, Felipe, Rodríguez-Estrella, Tomás, and Manteca, Ignacio
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HOLOCENE Epoch ,ORGANIC geochemistry ,PALEOBIOLOGY ,PALEOENVIRONMENTAL studies ,PLEISTOCENE Epoch - Abstract
Here, we sought to reconstruct the Pleistocene and Holocene evolution of Cartagena Bay. Therefore, 16 borehole cores were analysed with the following aims: (1) to define a chronological framework; (2) to obtain data on the palaeoenvironment; and (3) to establish the relationship with human activities, especially focused on the reconstruction of the Carthago Nova (also known as Qart Hadasht) conquest. A total of 147 samples were recovered for amino acid racemisation (AAR) dating; 32 for radiocarbon dating (
14 C); and 159 for sedimentological, palaeontological, and biomarker determination. These approaches allowed us to elucidate the evolutionary phases of the palaeolandscape in Cartagena. The simultaneous use of AAR and14 C dating allowed the discrimination of spurious ages and the establishment of a chronological scale. During the Marine Isotope Stages (MIS) 7 and 5, the sea level (SL) in Cartagena Bay was almost the same as today. An alluvial plain developed in the northern area, and a delta was formed by an ephemeral river. In contrast, during MIS4, after a fall in SL, a wide sandy coastal plain emerged, leading to the accumulation of colluvial and aeolian deposits. The Holocene transgression was reflected in the hinterland in a late and temporarily floodable marsh fed by alluvial fans and creeks, producing a salinity gradient from freshwater to brackish and saline waters. Along the sea front, the marine influence was evident but not dominant, grading up and landwards to saline and freshwater marshes. Therefore, at the time of Scipio's conquest, the geography of Carthago Nova was quite different from that described by Polybius. The Roman's sudden attack seized Qart Hadasht from the south-west, avoiding the marshy area and not crossing a fast and deep ebb stream as it never existed on the Mediterranean Iberian coast. [ABSTRACT FROM AUTHOR]- Published
- 2018
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11. Early metal pollution in southwestern Europe: the former littoral lagoon of El Almarjal (Cartagena mining district, S.E. Spain).A sedimentary archive more than 8000 years old.
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Manteca, José-Ignacio, Ros-Sala, Milagros, Ramallo-Asensio, Sebastián, Navarro-Hervás, Francisca, Rodríguez-Estrella, Tomás, Cerezo-Andreo, Felipe, Ortiz-Menéndez, José-Eugenio, de-Torres, Trinidad, and Martínez-Andreu, Miguel
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DRILLING & boring ,BOREHOLES ,LAGOONS ,HEAVY metal toxicology ,METALLURGY - Abstract
A borehole drilling campaign has allowed the study of a former littoral lagoon located next to the harbour city of Cartagena in South-East Spain (close to the Sierra de Cartagena polymetallic ore deposits). This lagoon, which developed during the Holocene, was first a shallow sedimentary marine environment and later evolved into a swampy semi-endorheic basin named 'Almarjal' (after the Arab term from the fourteenth century). The lagoon eventually dried out and at present forms part of the substratum of the modern sector of the city urban area. The basin representative sediments are sapropelic black silty facies forming a continuous sedimentary archive, accounting for more than 8000 years of depositional phenomena. The geochemical study of these sediments, together with their absolute calibrated dating by C, allows definition of successive stages of mining and metallurgical activities in the area. In turn, this information provides a more comprehensive perspective regarding metal pollution, particularly lead contamination during different periods of the Recent Prehistory and the Classical Age. The results indicate that the beginning of contamination by lead and other heavy metals occurred as early as 4500 years ago, when the Final Chalcolithic period was taking place in the South-East of the Iberian Peninsula. This finding provides further insights regarding the debate on the origins of lead mining and metallurgy in SE Spain. [ABSTRACT FROM AUTHOR]
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- 2017
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12. Lipid biomarkers and metal pollution in the Holocene record of Cartagena Bay (SE Spain): Coupled natural and human induced environmental history in Punic and Roman times.
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Ortiz, José E., Torres, Trinidad, Sánchez-Palencia, Yolanda, Ros, Milagros, Ramallo, Sebastián, López-Cilla, Ignacio, Galán, Luis A., Manteca, Ignacio, Rodríguez-Estrella, Tomás, Blázquez, Ana, Gómez-Borrego, Ángeles, Ruiz-Zapata, Blanca, and Gil, María José
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ENVIRONMENTAL history ,ROMAN history ,HOLOCENE Epoch ,BRONZE Age ,POLLUTION ,BRONZE ,SELENOPROTEINS ,MARINE toxins - Abstract
We reconstructed the palaeoenvironmental conditions of Cartagena Bay during the Holocene after a multidisciplinary study to identify natural variations and the anthropic processes of this coastal area. A total of 119 samples were recovered for amino acid racemization dating, 3 for radiocarbon dating (
14 C), and four sets of 80 samples for sedimentological and palaeontological determination, mineralogical content, biomarker and trace elements quantification. Two natural scenarios were identified from the variations of n -alkane indices and palaeobiological content. The first period (6650–5750 yr cal BP) was marked by the development of euhaline marine conditions with strong inputs from aquatic macrophytes and high biodiversity. After a hiatus, the area underwent a profound change, becoming a paucispecific brackish marsh environment with increasing inputs from land plants, with possible episodes of emersion with a greater presence from terrestrial gastropods (3600–300 cal yr BP). By combining trace element abundance and stanol distributions, our study also provides a novel approach to identify the predominant influence of anthropogenic factors in the last three millennia in the coastal record of Cartagena Bay. Findings confirmed that Pb mining and metallurgy began during the Bronze Age, with considerable inputs of this heavy metal into the atmosphere during Phoenician, Punic and particularly Roman times compared to the Middle Ages. Pollution by Cu and Zn was also observed during Punic and Roman times, and was first documented in the Middle Ages. In addition, faecal stanols, such as coprostanol, derived mainly from humans, and 24-ethylcoprostanol from herbivores were present, thereby indicating for the first time a continuous presence of human populations and significant pollution input since 3600 yr cal BP, this being greater in the late Bronze Age and Phoenician, Punic and Roman times than during Late Antiquity and the Middle Ages, when the city was in decline. [Display omitted] • Euhaline marine conditions and high biodiversity occurred at 6650–5750 yr. • A paucispecific brackish marsh environment occurred at 3400–300 yr after an hiatus. • Faecal sterols revealed pollution from herbivores and humans since Bronze Age. • Pb–Zn–Cu linked to regional mining-metallurgy since Bronze Age to Middle Ages. [ABSTRACT FROM AUTHOR]- Published
- 2022
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13. Evaporite evidence of a mid-Holocene (c. 4550–4400 cal. yr BP) aridity crisis in southwestern Europe and palaeoenvironmental consequences.
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Navarro-Hervás, Francisca, Ros-Salas, María-Milagros, Rodríguez-Estrella, Tomás, Fierro-Enrique, Elena, Carrión, José-Sebastián, García-Veigas, Javier, Flores, José-Abel, Bárcena, María Ángeles, and García, María Soledad
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SEDIMENTOLOGY ,HOLOCENE Epoch ,SALT ,BIOSTRATIGRAPHY ,CLIMATE change - Abstract
Sedimentological evidence for an abrupt dry spell in south-eastern Spain during the middle Holocene, from c. 4906 to 4384 cal. yr BP, is presented. This phase was determined primarily from halite beds deposited between muddy slimes in a lagoon system of Puerto de Mazarrón (Murcia province) with a peak phase from c. 4550 to 4400 cal. yr BP. A multi-core, multi-proxy study of 20 geotechnical drills was made in the lagoon basin to identify the main sedimentary episodes and depositional environments. The results suggest that this halite bed, more than 80 cm thick, was conditioned by climate change and was accompanied by a generalized drying-out of the basin. Halite precipitation was linked with palaeoecological changes, including forest and mesophyte depletions and increasing cover and diversity of xerophytic plant species. Archaeological evidence indicates a demise of the population at this period probably due to resource exhaustion. An overall picture of the biostratigraphy and palaeoclimates of the region is given in a broader geographical context. [ABSTRACT FROM AUTHOR]
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- 2014
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14. The Cenozoic Malaguide Basin from Sierra Espuña (Murcia, S Spain): An Example of Geological Heritage.
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Moliner-Aznar, Santiago, Martín-Martín, Manuel, Rodríguez-Estrella, Tomás, and Romero-Sánchez, Gregorio
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GEOLOGICAL basins ,TURBIDITES ,PALEOGENE ,SEDIMENTATION & deposition ,CONGLOMERATE ,LIMESTONE - Abstract
The Cenozoic Malaguide Basin from Sierra Espuña (Internal Betic Zone, S Spain) due to the quality of outcropping, areal representation, and continuity in the sedimentation can be considered a key-basin. In the last 30 years, a large number of studies with very different methodological approaches have been done in the area. Models indicate an evolution from passive margin to wedge-top basin from Late Cretaceous to Early Miocene. Sedimentation changes from limestone platforms with scarce terrigenous inputs, during the Paleocene to Early Oligocene, to the deep basin with huge supplies of turbidite sandstones and conglomerates during the Late Oligocene to Early Miocene. The area now appears structured as an antiformal stack with evidence of synsedimentary tectonics. The Cenozoic tectono-sedimentary basin evolution is related to three phases: (1) flexural tectonics during most of the Paleogene times to create the basin; (2) fault and fold compartmentation of the basin with the creation of structural highs and subsiding areas related to blind-fault-propagation folds, deforming the basin from south to north during Late Oligocene to Early Aquitanian times; (3) thin-skin thrusting tectonics when the basin began to be eroded during the Late Aquitanian-Burdigalian. In recent times some works on the geological heritage of the area have been performed trying to diffuse different geological aspects of the sector to the general public. A review of the studies performed and the revisiting of the area allow proposing different key-outcrops to follow the tectono-sedimentary evolution of the Cenozoic basin from this area. Eight sites of geological interest have been selected (Cretaceous-Cenozoic boundary, Paleocene Mula Fm, Lower Eocene Espuña-Valdelaparra Fms, Middle Eocene Malvariche-Cánovas Fms, Lowermost Oligocene As Fm, Upper Oligocene-Lower Aquitanian Bosque Fm, Upper Oligocene-Aquitanian Río Pliego Fm, Burdigalian El Niño Fm) and an evaluation has been performed to obtain four parameters: the scientific value, the educational and touristic potential, and the degradation risk. The firsts three parameters obtained values above 50 being considered of "high" or "very high" interest ("very high" in most of the cases). The last parameter shows always values below 50 indicating a "moderate" or "low" risk of degradation. The obtained values allow us considering the tectono-sedimentary evolution of this basin worthy of being proposed as a geological heritage. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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15. Keys to discern the Phoenician, Punic and Roman mining in a typical coastal environment through the multivariate study of trace element distribution.
- Author
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Ortiz, José E., Torres, Trinidad, López-Cilla, Ignacio, Galán, Luis A., Sánchez-Palencia, Yolanda, Ros, Milagros, Manteca, Ignacio, Ramallo, Sebastián, Navarro, Francisca, Rodríguez-Estrella, Tomás, Blázquez, Ana, Borrego, Ángeles G., Ruiz-Zapata, Blanca, Gil-García, María José, and Heine, Erwin
- Published
- 2021
- Full Text
- View/download PDF
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