93 results on '"Matenco, L."'
Search Results
2. Influence of magma-poor versus magma-rich passive margins on subduction initiation
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Auzemery, A., Yamato, P., Duretz, T., Willingshofer, E., Matenco, L., and Porkoláb, K.
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- 2022
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3. Far-field strain transmission and contractional step-overs
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Munteanu, Ioan, Willingshofer, E., Matenco, L., Sokoutis, D., Dinu, C., and Cloetingh, S.
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- 2019
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4. Magneto-biostratigraphy and paleoenvironments of the Miocene freshwater sediments of the Sarajevo-Zenica Basin
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Sant, K., Andrić, N., Mandic, O., Demir, V., Pavelić, D., Rundić, Lj., Hrvatović, H., Matenco, L., and Krijgsman, W.
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- 2018
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5. The link between tectonics and sedimentation in asymmetric extensional basins: Inferences from the study of the Sarajevo-Zenica Basin
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Andrić, N., Sant, K., Matenco, L., Mandic, O., Tomljenović, B., Pavelić, D., Hrvatović, H., Demir, V., and Ooms, J.
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- 2017
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6. Probing connections between deep earth and surface processes in a land-locked ocean basin transformed into a giant saline basin: The Mediterranean GOLD project#
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Rabineau, M., Cloetingh, S., Kuroda, J., Aslanian, D., Droxler, A., Gorini, C., Garcia-Castellanos, D., Moscariello, A., Burov, E., Sierro, F., Lirer, F., Roure, F., Pezard, P.A., Matenco, L., Hello, Y., Mart, Y., Camerlenghi, A., and Tripati, A.
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- 2015
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7. An Integrated Platform for Ground-Motion Mapping, Local to Regional Scale: Examples from SE Europe
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Poncoş, V., Stanciu, I., Teleagă, D., Matenco, L., Bozsó, I., Szakács, A., Birtas, D., Toma, Ş.-A., Stănică, A., Rădulescu, V., Tectonics, and Tectonics
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InSAR ,Ground displacement ,ground displacement ,infrastructure stability ,General Earth and Planetary Sciences ,Earth and Planetary Sciences(all) ,Infrastructure stability - Abstract
Ground and infrastructure stability are important for our technologically based civilization. Infrastructure projects take into consideration the risk posed by ground displacement (e.g., seismicity, geological conditions and geomorphology). To address this risk, earth scientists and civil engineers employ a range of measurement technologies, such as optical/laser leveling, GNSS and, lately, SAR interferometry. Currently there is a rich source of measurement information provided in various formats that covers most of the industrialized world. Integration of this information becomes an issue that will only increase in importance in the future. This work describes a practical approach to address and validate integrated stability measurements through the development of a platform that could be easily used by a variety of groups, from geoscientists to civil engineers and also private citizens with no training in this field. The platform enables quick cross-validation between different data sources, easy detection of critical areas at all scales (from large-scale individual buildings to small-scale tectonics) and can be linked to end-users from various monitoring fields and countries for automated notifications. This work is closing the gap between the specialized monitoring work and the general public, delivering the full value of technology for societal benefits in a free and open manner. The platform is calibrated and validated by an application of SAR interferometry data to specific situations in the general area of the Romanian Carpathians and their foreland. The results demonstrate an interplay between anthropogenically induced changes and high-amplitude active tectono–sedimentary processes creating rapid regional and local topographic variations.
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- 2022
8. The ‘pargasosphere’ hypothesis: Looking at global plate tectonics from a new perspective
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Kovács, I.J., Liptai, N., Koptev, A., Cloetingh, S.A.P.L., Lange, T.P., Matenco, L., Szakács, A., Radulian, M., Berkesi, M., Patkó, L., Molnár, G., Novák, A., Wesztergom, V., Szabó, C., Fancsik, T., and Tectonics
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Asthenosphere ,Lithosphere ,Global and Planetary Change ,Mid-lithospheric discontinuities ,Plate tectonics ,Pargasite ,Water ,Oceanography - Abstract
Apart from the lithosphere-asthenosphere boundary (LAB), mid-lithospheric discontinuities (MLDs) in thick and old continental lithospheres appear to play an important role in global plate tectonics. Initiation of intra-continental subduction, delamination of the lower continental lithospheric mantle and removal of cratonic roots are likely to occur along MLDs. Here we introduce the ‘pargasosphere’ hypothesis which could account for the origin of both boundaries. The observation that pargasitic amphibole is stable even at very low bulk ‘water’ concentration (~a few hundreds ppm wt.) implies that the solidus of the shallow upper mantle (
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- 2021
9. Miocene facies associations and sedimentary evolution of the Southern Transylvanian Basin (Romania): Implications for hydrocarbon exploration
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Krézsek, C., Filipescu, S., Silye, L., Maţenco, L., and Doust, H.
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- 2010
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10. Lower Cretaceous Provenance and Sedimentary Deposition in the Eastern Carpathians: Inferences for the Evolution of the Subducted Oceanic Domain and its European Passive Continental Margin
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Roban, R. D., Ducea, M. N., Matenco, L., Panaiotu, G. C., Profeta, L., Krézsek, C., Melinte-Dobrinescu, M. C., Anastasiu, N., Dimofte, D., Apotrosoaei, V., Francovschi, I., and Tectonics
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Geophysics ,Geochemistry and Petrology ,provenance ,subducted oceanic crust ,Early Cretaceous ,East Carpathians ,sedimentary model ,thin-skinned thrust belt - Abstract
Reconstructing orogenic systems made up dominantly by sediments accreted in trenches is challenging because of the incomplete lithological record of the subducted oceanic domain and its attached passive continental margin thrusted by collisional processes. In this respect, the remarkable ~600 km long continuity of sediments exposed in the Eastern Carpathian thin-skinned thrust and fold belt and the availability of quantitative reconstructions for adjacent continental units provide excellent conditions for a paleogeographical study by provenance and sedimentological techniques constraining sediment routing and depositional systems. These sediments were deposited in the Ceahl?u-Severin branch of the Alpine Tethys Ocean and over its European passive continental margin. We report sedimentological, paleomagnetic, petrographic, and detrital zircon U-Pb data of Lower Cretaceous sediments from several thin-skinned tectonic units presumably deposited in the Moldavides domain of the Eastern Carpathians. Sedimentological observations in the innermost studied unit demonstrate that deposition took place in a deepwater basin floor sheets to sandy turbidite system. Detrital zircon age data demonstrate sourcing from internal Carpathian basement units. The sediment routing changes in more external units, where black shales basin floor sheets to sandy mud turbidites were sourced from an external, European continental area. Although some degree of mixing between sources located on both margins of the ocean occurred, constraining a relatively narrow width of the deep oceanic basin, these results demonstrate that the internal-most studied unit was deposited near an Early Cretaceous accretionary wedge, located on the opposite internal side relative to the passive continental margin domain of other Moldavides units.
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- 2020
11. TOPO-EUROPE: The geoscience of coupled deep Earth-surface processes
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Cloetingh, S.A.P.L., Ziegler, P.A., Bogaard, P.J.F., Andriessen, P.A.M., Artemieva, I.M., Bada, G., van Balen, R.T., Beekman, F., Ben-Avraham, Z., Brun, J.-P., Bunge, H.P., Burov, E.B., Carbonell, R., Faccenna, C., Friedrich, A., Gallart, J., Green, A.G., Heidbach, O., Jones, A.G., Matenco, L., Mosar, J., Oncken, O., Pascal, C., Peters, G., Sliaupa, S., Soesoo, A., Spakman, W., Stephenson, R.A., Thybo, H., Torsvik, T., de Vicente, G., Wenzel, F., and Wortel, M.J.R.
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- 2007
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12. Large-scale deformation in a locked collisional boundary: interplay between subsidence and uplift, intraplate stress, and inherited lithospheric structure in the late stage of the SE Carpathians evolution
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Matenco, L., Bertotti, G., Leever, K., Cloetingh, S., Schmid, S.M., Tarapoanca, M., and Dinu, C.
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Carpathian Mountains -- Natural history ,Rock deformation -- Evaluation ,Uplift (Geology) -- Influence ,Subsidences (Earth movements) -- Influence ,Plate tectonics -- Research ,Earth sciences - Abstract
The interplay between slab dynamics and intraplate stresses in postcollisional times creates large near-surface deformation, particularly in highly bent orogens with significant lateral variations in mechanical properties. This deformation is expressed through abnormal foredeep geometries and contrasting patterns of vertical movements. Intraplate folding is often the controlling mechanism, particularly when the orogenic belt is locked. The study of these tectonic processes in the SE Carpathians indicates a generalized subsidence period during latest Miocene-Pliocene times driven by the slab-pull and an intraplate folding due to an overall Quaternary inversion. The latter accommodates ~5 km ESE-ward movement of this area with respect to the neighboring units, which creates complicated three-dimensional deformation patterns potentially driven at a larger scale by the interaction between the Adriatic indentor and the entire Carpathians system. The lithospheric anisotropy inherited from the subduction times concentrates strain and induces large-scale deformation far away from the active plate margins. This anisotropy is dynamic because of deep mantle processes related to the subducted slab during postcollisional times, such as thermal reequilibration or increase in slab dip. doi:10.1029/2006TC001951.
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- 2007
13. Architecture of the Focsani Depression: a 13 km deep basin in the Carpathians bend zone (Romania)
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Tarapoanca, M., Bertotti, G., Matenco, L., Dinu, C., and Cloetingh, S.A.P.L.
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Carpathian Mountains -- Natural history ,Shear zones -- Composition ,Shear zones -- Structure ,Basins (Geology) -- Composition ,Basins (Geology) -- Structure ,Earth sciences - Abstract
[1] In front of the SE Carpathians Bend a very deep basin (Focsani Depression) developed in Miocene to Recent times. An important part of its subsidence occurred after the main stages of thrusting in the Carpathians. Apparently, the basin lies in the 'wrong' place and evolved in the 'wrong' time. In this study, we constrain its architecture and evolution by analyzing a large database consisting of more than 1000 km two-dimensional seismic lines and more than 60 wells. Around 13 km thick, Badenian-to-Quaternary ( < 16.5 Myr) sediments were deposited in the central part of the Focsani Depression. During the Badenian (16.5-13 Myr), the foreland (south of Trotus fault) underwent NE-SW directed extension and NW trending basins opened in the eastern Moesian platform. A NW-SE oriented area of subsidence stretched from the Transylvania basin through the Focsani Depression to the SE of the Moesian platform while thrusting was going on in the East European/ Scythian platform, East Carpathians, and Getic Depression. Starting with the Sarmatian (13-10 Myr), the Focsani Depression depocenter moved out of the Carpathian belt coeval with the exhumation of the south and the East Carpathians north of the Trotus fault. The basin became wider and was tilted toward the belt. Tilting was accompanied by dextral shearing mainly along the Intramoesian and Peceneaga-Camena faults. After Sarmatian times, subsidence occurred practically only SSE of Trotus fault. During Meotian-Pontian (10-5 Myr), subsidence slowed down. Stronger, Pliocene-Quaternary subsidence is coeval with normal faulting and shearing in Moesian platform. The western margin of the Focsani Depression was then tilted eastward, coeval with the exhumation of the bend zone and opening of the intramontane basins in the inner part of the belt. INDEX TERMS: 8105 Tectonophysics: Continental margins and sedimentary basins (1212); 0905 Exploration Geophysics: Continental structures (8109, 8110); 9335 Information Related to Geographic Region: Europe; 9604 Information Related to Geologic Time: Cenozoic; KEYWORDS: Carpathians foredeep, Focsani Depression, basin subsidence, extension, shearing, tilting. 2003.
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- 2003
14. Lithospheric memory, state of stress and rheology: neotectonic controls on Europe's intraplate continental topography
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Cloetingh, S., Ziegler, P.A., Beekman, F., Andriessen, P.A.M., Matenco, L., Bada, G., Garcia-Castellanos, D., Hardebol, N., Dèzes, P., and Sokoutis, D.
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- 2005
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15. Extensional Polarity Change in Continental Rifts: Inferences From 3-D Numerical Modeling and Observations
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Balázs, A., Matenco, L., Vogt, K., Cloetingh, S., Gerya, T., and Tectonics
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opposite extensional polarities ,3-D thermomechanical modeling ,transfer or transform faults kinematics ,Pannonian Basin - Abstract
Extensional basins often show along-strike variability in terms of fault geometries, basement structures, subsidence, and thermal evolution. This is particularly pronounced when extension reactivates preexisting suture zones with opposing dip directions, that is, opposite polarities, which creates wide strike-slip transfer zones. We have studied this extensional variability by means of thermomechanical lithospheric-scale 3-D numerical modeling. We conducted a series of experiments to model the extension of a thick lithosphere simulating a young orogenic area containing segmented suture zones inherited from former opposing subduction polarities, implemented as rheologically weak inclined layers with opposite dips. Numerical experiments demonstrate that the initial subduction sutures are reactivated by two long-lived lithospheric-scale detachment faults, which remain active until the onset of oceanic spreading. The opposite polarity of these faults causes their migration toward each other by asymmetric mantle lithosphere extension and thermal accretion. Crustal kinematics shows the formation of extensional detachment faults and high-offset listric normal faults. These structures undergo gradual tilting during their footwall exhumation, while the rheological weak suture layers are redistributed beneath the crust. The results demonstrate an active interaction along the strike of the system between the two opposite dipping weak zones, where fault segments mechanically interact. During extension, the maximum horizontal fault offset switches the apparent sense of shear in the separating strike-slip transfer zone. This kinematics explain the rapid change in the sense of shear in major strike-slip transfer zones or transform faults, such as observed during the extension of the Pannonian back-arc basin.
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- 2018
16. Role of the 3-D distributions of load and lithospheric strength in orogenic arcs: polystage subsidence in the Carpathians foredeep
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Tărăpoancă, M, Garcia-Castellanos, D, Bertotti, G, Matenco, L, Cloetingh, S.A.P.L, and Dinu, C
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- 2004
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17. Thermo-mechanical controls on the mode of continental collision in the SE Carpathians (Romania)
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Cloetingh, S.A.P.L., Burov, E., Matenco, L., Toussaint, G., Bertotti, G., Andriessen, P.A.M., Wortel, M.J.R., and Spakman, W.
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- 2004
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18. Subsidence analysis and tectonic evolution of the external Carpathian–Moesian Platform region during Neogene times
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Matenco, L, Bertotti, G, Cloetingh, S, and Dinu, C
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- 2003
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19. Palaeogeographic evolution of the late Miocene Rifian Corridor (Morocco):Reconstructions from surface and subsurface data
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Capella, W., Barhoun, N., Flecker, R., Hilgen, F. J., Kouwenhoven, T., Matenco, L. C., Sierro, Francisco J., Tulbure, M. A., Yousfi, Mohamed Zakaria, Krijgsman, W., Paleomagnetism, Stratigraphy and paleontology, Tectonics, Stratigraphy & paleontology, Paleomagnetism, Stratigraphy and paleontology, Tectonics, and Stratigraphy & paleontology
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Mediterranean climate ,Late Miocene ,Rif ,010504 meteorology & atmospheric sciences ,Global climate ,Earth and Planetary Sciences(all) ,Water exchange ,Mediterranean-Atlantic exchange ,Biostratigraphy ,Messinian Salinity Crisis ,010502 geochemistry & geophysics ,01 natural sciences ,Marine gateways ,Paleontology ,General Earth and Planetary Sciences ,Palaeogeography ,Sediment transport ,Geology ,0105 earth and related environmental sciences - Abstract
The Rifian Corridor was one of the Mediterranean–Atlantic seaways that progressively restricted and caused the Messinian Salinity Crisis (MSC). Many key questions concerning the controls on the onset, progression and termination of the MSC remain unanswered mainly because the evolution of these seaways is poorly constrained. Uncertainties about the age of restriction and closure of the Rifian Corridor hamper full understanding of the hydrological exchange through the MSC gateways: required connections to sustain transport of salt into the Mediterranean for the primary-lower gypsum and halite stages. Here we present integrated surface-subsurface palaeogeographic reconstructions of the Rifian Corridor with improved age-control. Information about age and timing of the closure have been derived from high-resolution biostratigraphy, palaeoenvironmental indicators, sediment transport directions, and the analysis of published onshore subsurface (core and seismic) datasets. We applied modern taxonomic concepts to revise the biostratigraphy of the Rifian Corridor and propose astronomically-tuned, minimum-maximum ages for its successions. Finally, we summarise the palaeogeographic evolution in four time slices corresponding to the middle Tortonian (10.57–8.37), late Tortonian (8.37–7.25 Ma), early Messinian (7.25–6.35 Ma), and late Messinian (6.35–5.33 Ma). Several successions record the closure of the corridor via a continuous marine to continental-lacustrine transition. The youngest dated marine sediments represent a good approximation of the age of seaway closure. The closure of the South Rifian Corridor is constrained to 7.1–6.9 Ma; that of the North Rifian Corridor is more uncertain and ranges from 7.35 to ca. 7 Ma. We conclude that the Rifian Corridor was already closed in the early Messinian and did not contribute to the restriction events that resulted in the MSC. Because the Betic Corridor is also closed by the early Messinian, the modern Gibraltar Straits remain the sole option in the Western Mediterranean as last Messinian seaway that was open during the MSC. Our results imply that the Gibraltar Straits could have been established as the exclusive Mediterranean-Atlantic portal already in the late Miocene, and therefore we suggest that future field and drilling campaigns should target the Alboran Sea and the Gibraltar region to investigate water exchange before and during the Messinian Salinity Crisis and its impact on Atlantic circulation and global climate.
- Published
- 2018
20. Late Cretaceous extension and exhumation of the Stong and Taku magmatic and metamorphic complexes, NE Peninsular Malaysia
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François, T., Md Ali, M.A., Matenco, L., Willingshofer, E., Ng, T.F., Taib, N.I., Shuib, M.K., and Tectonics
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Post-orogenic extension ,Peninsular Malaysia ,Metamorphic core-complexes ,Syn-kinematic magmatism ,Detachments - Abstract
Fragmentation of large continental areas by post-orogenic extension requires favourable geodynamic conditions and frequently occurs along pre-existing suture zones or nappe contacts, as exemplified by the Stong and Taku magmatic and metamorphic complexes of northern Peninsular Malaysia. For this case, we have employed a field and microstructural kinematic study combined with low temperature thermo-chronology to analyse the tectonic and exhumation history. The results show that the Late Palaeozoic - Triassic Indosinian orogeny created successive phases of burial related metamorphism, shearing and contractional deformation. This orogenic structure was subsequently dismembered during a Cretaceous thermal event that culminated in the formation of a large scale Late Santonian - Early Maastrichtian extensional detachment, genetically associated with crustal melting, the emplacement of syn-kinematic plutons and widespread migmatisation. The emplacement of these magmatic rocks led to an array of simultaneously formed structures that document deformation conditions over a wide temperature range, represented by amphibolite- and greenschist- facies mylonites and as well as brittle structures, such as cataclastic zones and normal faults that formed during exhumation in the footwall of the detachment. The formation of this detachment and a first phase of Late Cretaceous cooling was followed by renewed Eocene - Oligocene exhumation, as evidenced from our fission track ages. We infer that an initial Cretaceous thermal anomaly was responsible for the formation of an extensional gneiss dome associated with simple shear and rotation of normal faults. These Cretaceous processes played a critical role in the establishment of the presently observed crustal structure of Peninsular Malaysia.
- Published
- 2017
21. Kinematics of post-orogenic extension and exhumation of the Taku Schist, NE Peninsular Malaysia
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Md Ali, M.A., Willingshofer, E., Matenco, L., Francois, T., Daanen, T.P., Ng, T.F., Taib, N.I., Shuib, M.K., and Tectonics
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Post-orogenic ,Peninsular Malaysia ,Extensional detachments ,SE Asia ,Exhumation - Abstract
Recent studies imply that the formation and evolution of many SE Asian basins was driven by extensional detachments or systems of low-angle normal faults that created significant crustal exhumation in their footwalls. In this context, the architecture of the Triassic Indosinian orogen presently exposed in Peninsular Malaysia is compatible with significant extension post-dating the orogenic event. In this study we performed a kinematic analysis based on fieldwork and microstructural observations in the Taku Schist, Kemahang granite and the surrounding Gua Musang sediments of northern Peninsular Malaysia in order to shed light on processes related to the build-up and subsequent demise of the Indosinian orogen. The first three phases of deformation were related to an overall period of E–W oriented contraction and burial metamorphism. These phases of deformation are characterized by isoclinal folding with flat lying axial plane cleavages (D1), asymmetrical folding, top-to-the-W–SW shearing (D2) and upright folding (D3). All are in general agreement with observations of the previously inferred Permo–Triassic Indosinian orogeny. During these times, the Taku Schist, a sequence of Paleozoic clastic sediments with mafic intercalations was metamorphosed to amphibolite facies. These rocks are most likely equivalent to the ones exposed in the Bentong–Raub suture zone. Structural relations suggest that the Triassic Kemahang pluton is syn-kinematic, which provides important constraints for the timing of these contractional events. We demonstrate that the overall shortening was followed by a hitherto undescribed extension in NW–SE direction resulting in the formation of a large-scale detachment, the Taku detachment, in northern Peninsular Malaysia. Extension probably reactivated the former subduction plane as a detachment and exhumed previously buried and metamorphosed rocks of similar lithological composition to the neighboring Bentong–Raub suture zone. Such a mechanism is similar to that observed in other regions, such as the Aegean, Apennines, Dinarides or the Betics–Rif system, where exhumation of (high-pressure) metamorphic rocks is largely controlled by detachments or low angle normal shear/fault systems.
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- 2016
22. Tertiary tectonic evolution of the external East Carpathians (Romania)
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Matenco, L and Bertotti, G
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- 2000
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23. Tertiary tectonic and sedimentological evolution of the South Carpathians foredeep: tectonic vs eustatic control
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Rabăgia, T. and Maţenco, L.
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- 1999
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24. From nappe stacking to out-of-sequence postcollisional deformations: cretaceous to quaternary exhumation history of the SE Carpathians assessed by low-temperature thermochronology
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Merten, S., Matenco, L., Foeken, J.P.T., Stuart, F.M., and Andriessen, P.A.M.
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Carpathian Mountains -- Environmental aspects ,Nappes (Geology) -- Environmental aspects ,Tectonics (Geology) -- Research ,Deformations (Mechanics) -- Research ,Geochronology -- Research ,Thermodynamics -- Research ,Earth sciences - Abstract
Apatite fission track (AFT) and (U-Th)/He (AHe) thermochronology have been combined to constrain the exhumation history of the SE Carpathians. Cooling ages generally decrease from Cretaceous for the internal basement nappes (AFT ages), to Miocene-Quaternary (AFT and AHe, respectively) for the external sedimentary wedge. The AFT and AHe data show a Paleogene age cluster, which confirms a suspected but never demonstrated tectonic event. The new data furthermore suggest that the SE Carpathians have been affected by a middle Miocene exhumation phase related to continental collision, which occurred at rates of~0.8 mm/yr, similar to the one previously inferred for the East Carpathians. The SE Carpathian tectonic evolution, however, is overprinted by two younger exhumation events in the Pliocene--Pleistocene. The first exhumation phase (latest Miocene--early Pliocene) occurred at high exhumation rates (~1.7 mm/yr) and is interpreted as a tectonic event and/or associated with a sea level drop in the Paratethys basins during the Messinian low stand. The youngest recorded tectonic phase suggests rapid Pleistocene exhumation (~1.6 mm/yr) and is interpreted to represent crustal-scale shortening different in mechanics from collisional processes. The data suggest that the SE Carpathians did not develop as a typical double-vergent orogenic wedge; instead, exhumation was related to a foreland-vergent sequence of nappe stacking during collision and was subsequently followed by a large out-of-sequence shortening event truncating the already locked collisional boundary. Citation: Merten, S., L. Matenco, J. P. T. Foeken, F. M. Stuart, and P. A. M. Andriessen (2010), From nappe stacking to out-of sequence postcollisional deformations: Cretaceous to Quaternary exhumation history of the SE Carpathians assessed by low-temperature thermochronology, Tectonics, 29, TC3013, doi: 10.1029/2009TC002550.
- Published
- 2010
25. The link between tectonics and sedimentation in back-arc basins: New genetic constraints from the analysis of the Pannonian Basin
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Balázs, A., Matenco, L., Magyar, I., Horváth, F., Cloetingh, S., and Tectonics
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Pannonian Basin ,Carpathians ,8169 Sedimentary basin processes ,8109 Continental tectonics: extensional ,back-arc extension ,inversion tectonics ,3001 Back-arc basin processes ,tectonic system tracts - Abstract
The architecture of sedimentary basins reflects the relationship between accommodation space and sediment supply, their rates and localization being variable during basin evolution. The mechanisms driving the interplay between tectonics and sedimentation in extensional back-arc basins overlying rheological weak zones inherited from an earlier orogenic evolution are less understood. A typical example is the Pannonian back-arc basin of Central Europe. It is floored by continental lithosphere and was affected by large amounts of extension driven by the subduction rollback that took place in the Carpathians and/or Dinarides. A novel kinematic and seismic sequence stratigraphic interpretation calibrated by wells allows the quantification of the link between the formation of half grabens and coeval sedimentation in the Great Hungarian Plain part of the basin. While the lower order tectonic-induced cycles characterize the main phases of extension in various subbasins, the higher-order cyclicity and associated unconformities define individual moments of fault (re)activation. Our novel interpretation of a temporal and spatial migration of extension during Miocene times explains the contrasting present-day strike of various subbasins as a result of their gradual clockwise rotation. Incorporating the observed asymmetry, in particular the associated footwall exhumation, infers that the amount of extension is much larger than previously thought. The quantitative link between tectonics and sedimentation has allowed the definition of a novel model of sedimentation in asymmetric basins that can be ported to other natural scenarios of similarly hyperextended back-arc basins observed elsewhere.
- Published
- 2016
26. Variability of orogenic magmatism during Mediterranean-style continental collisions: A numerical modelling approach
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Andrić, N., Vogt, K., Matenco, L., Cvetković, V., Cloetingh, S., Gerya, T., and Tectonics
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Collision ,010504 meteorology & atmospheric sciences ,Subduction ,Continental collision ,Magmatism ,Geology ,Crust ,010502 geochemistry & geophysics ,01 natural sciences ,Tectonics ,13. Climate action ,Back-arc basin ,Numerical modelling ,Suture (geology) ,Petrology ,Foreland basin ,Dinarides ,0105 earth and related environmental sciences ,Mediterranean orogens - Abstract
The relationship between magma generation and the tectonic evolution of orogens during subduction and subsequent collision requires self-consistent numerical modelling approaches predicting volumes and compositions of the produced magmatic rocks. Here, we use a 2D magmatic-thermomechanical numerical modelling procedure to analyse rapid subduction of a narrow ocean, followed by Mediterranean style collision, which is characterized by the gradual accretion of lower plate material and slab migration towards the orogenic foreland. Our results suggest that magmatism has a large-scale geodynamic effect by focusing deformation throughout the entire subduction and collision process. The rheological structure and compositional layering of the crust impose a key control on the distribution of magmatic rocks within the orogen. Compared to previous simplified homogeneous crustal models, a compositionally layered crust causes an increase in felsic material influx during continental collision and results in shallower magmatic sources that migrate with time towards the foreland. Changes in the deformation style may be locally driven by magma emplacement rather than by slab movement. Our modelling also demonstrates that the migration pattern of the deformation front and the magmatic arc relative to the location of the suture zone may be driven by lower crustal indentation in the overriding plate during early stages of collision. The modelling predicts a gradual change in magma source composition with time from typical calc-alkaline to ones associated with relamination and eduction during subduction, collision and slab detachment. This transition explains the compositional changes of magma their temporal and spatial migration, as well as the observed link with deformation in the Dinarides orogen of Central Europe selected as a case study.
- Published
- 2018
27. Tectonic Models for the Evolution of Sedimentary Basins
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Cloetingh, S., Ziegler, P.A., Beekman, F., Burov, E.B., Garcia-Castellanos, D., Matenco, L., Schubert, Gerald, and Tectonics
- Subjects
Neotectonics ,Lithospheric memory ,Sedimentary basins ,Lithosphere dynamics ,Thermomechanical models ,Continental rifts ,Intraplate deformation ,Foreland basins - Abstract
The tectonic evolution of sedimentary basins is the intrinsic result of the interplay between lithospheric stresses, lithospheric rheology, and thermal perturbations of the lithosphere–upper mantle system. The thermomechanical structure of the lithosphere exerts a prime control on its response to basin-forming mechanisms, in both extension and compression. Tectonic reactivation has strongly affected the structure and fill of many sedimentary basins. The long-lasting rheological memory of the lithosphere appears to play a far more important role in basin reactivation than hitherto assumed. The temporal evolution of the strength of continents and the spatial variations in stress and strength at continental margins, rifts, and orogenic belts govern the mechanics of basin development in time and space. Polyphase deformation is a common feature of many sedimentary basin systems. Compressional reactivation of extensional basins during their postrift phase appears to occur in many intraplate rifts and passive margins, reflecting temporal and spatial changes in the orientation and magnitude of the intraplate stress regime. Similarly, foreland basins are frequently characterized by preorogenic extension. The actual subsidence patterns of these polyphase systems are often more complex than predicted by end-member models that only consider the basin formation mechanism. Folding of the lithosphere, involving positive and negative deflections, appears to be of more importance in the large-scale deformation of intraplate domains than hitherto realized. In the intraplate domain of continental Europe that was thermally perturbed by Cenozoic upper mantle plume activity, lithospheric folding, for instance, plays an important role and strongly affects the pattern of vertical motions, in terms of both the basin subsidence and the uplift of broad arches. Tectonic processes operating during basin formation and during the subsequent deformation of basins can generate significant differential topography in basin systems. In view of the close link between erosion of topographic highs and sedimentation in subsiding areas, constraints are needed on uplift and coeval subsidence to validate quantitative process-oriented models for the evolution of sedimentary basins. Integration of analog and numerical modeling provides a novel approach to assess the feedback mechanisms between deep mantle, lithospheric, and surface processes.
- Published
- 2015
28. Geodynamics and intermediate-depth seismicity in Vrancea (the south-eastern Carpathians): Current state-of-the art
- Author
-
Ismail Zadeh A., Matenco L., Radulian M., Cloetingh S., PANZA, GIULIANO, Ismail Zadeh, A., Matenco, L., Radulian, M., Cloetingh, S., and Panza, Giuliano
- Subjects
Intermediate-depth seismicity, Tectonics, Geodynamics, Seismic hazard, Modelling Vrancea - Abstract
The Vrancea region of the south-eastern Carpathians is a remarkable site of intra-continental intermediate- depth seismicity. A large set of geological, geophysical, and geodetic observations has been accumulated for the last few decades and utilised to improve our knowledge of the shallow and deep structures beneath Vran- cea, the crustal and mantle dynamics, and the linkage between deep and surface processes in the region. In this article we review geology and tectonics of the Vrancea region including post-collisional to recent deforma- tions, syn- to post-collisional magmatism, and orogenic exhumation along the East and South Carpathians. The regional seismicity is analysed, and the recent seismic studies including reflection, refraction, body and surface wave tomography are reviewed. We discuss new geodetic measurements of horizontal and vertical movements in the region, geoelectric studies, density/gravity and thermal modelling. Qualitative and quanti- tative (including retrospective) geodynamic models developed for Vrancea are analysed. The knowledge of re- gional tectonics, geodynamics, seismicity, lithospheric deformation, and stress regime in the Vrancea earthquake-prone region assists in an assessment of strong ground motion, seismic hazard and risk. The earth- quake simulation, seismic hazard, and earthquake forecasting models have also been reviewed providing a link between deep geodynamic processes and their manifestation on the surface. Finally we discuss unre- solved problems in Vrancea in order to improve our understanding of the regional evolution, present tecton- ics, mantle dynamics, intermediate-depth seismicity, and surface manifestations of the lithosphere dynamics and to enhance our ability to forecast strong earthquakes in the Vrancea region. The problems to be solved in- clude: (i) the origin of the high-velocity body revealed by seismic tomography studies (oceanic versus conti- nental); (ii) the lithospheric scale mechanism driving the Miocene subsidence of the Transylvania basin; (iii) sub-crustal structure between 40 and 70 km; (iv) contemporary regional horizontal and vertical move- ments; and (v) a comprehensive seismic hazard assessment in the region.
- Published
- 2012
29. Far-field contractional polarity changes in models and nature
- Author
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Munteanu, I., Willingshofer, E., Matenco, L., Sokoutis, D., Cloetingh, S., and Tectonics
- Subjects
New Guinea–New Britain fore-arc ,far-field deformation ,Black Sea back-arc ,contractional polarity changes ,analogue modelling - Abstract
A change in contractional polarity occurs when the direction of tectonic transport switches along strike. This switch is conditioned by lateral variations in rheology or inherited asymmetries, such as contrasts in structure or changes in the polarity of subduction zones. The parameters controlling contractional polarity changes are less understood in situations when the strain is transferred at large distances from indenters. Analysing this type of strain transfer is critical for understanding the mechanics of thrusting in fore- or back-arc settings of orogenic areas. Comparison of crustal-scale analogue modelling with the inversion of the Black Sea back-arc and the formation of the New Guinea-New Britain fore-arc suggest that far-field changes in contractional polarity are related to rheological contrasts across inherited normal faults. The initial extension creates rheological weak zones that localize the subsequent far-field contractional deformation along groups of thrusts with opposite vergence along the strike of the system. The largest amount of far-field contractional deformation is recorded in the transfer zone located between the two indenters moving in opposite directions and is particularly high when inverting oblique extensional systems.
- Published
- 2014
30. First-order similarities and differences between Alps, Dinarides, Hellenides and Anatolides-Taurides
- Author
-
Schmid, S.M, Bernoulli, D, Fugenschuh, B, Matenco, L, Schefer, S, Oberhansli, R, van Hinsbergen, D.J.J, and Ustaszewski, K.
- Published
- 2013
31. From orogenic buildup to extensional unroofing: the evolution of the Adria - Europe collisional zone in the Medvenica Mountains of Croatia
- Author
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van Gelder, I.E., Beniest, A, Matenco, L., Willingshofer, E., Andriessen, P.A.M., Gruić, A., Tomljenović B., and Ralf Schuster
- Subjects
Extensional unroofing ,Adria-Europe evolution ,Mt. Medvednica ,Croatia - Abstract
Quantifying the kinematics of the Miocene extension in the Pannonian Basin is of critical importance for understanding the evolution of Adria-Europe collision in particular in the transitional zone from the Alps to the Dinarides. Recent studies have demonstrated that largescale extensional unroofing along low-angle detachments have affected the Europe-Adria contact in the Dinarides during Miocene times. The relationship between this extensional exhumation of Adriatic units in the Medvednica Mountains (Croatia), the roughly coeval Miocene extension affecting the Alpine-derived units during E-ward extrusion and the formation of the Pannonian Basin is still unknown and the focus of this study. The Medvednica Mountains, a NE-SW striking mountain range within the internal Dinarides, has been the focus of a field kinematic study, complementary low-temperature thermochronology (apatite fission track), metamorphic petrology, isotope dating (Rb-Sr measurements) and microstructural analysis. The observations indicate that the mountains consist of two units, reflecting distinct Adriatic paleogeographical positions. The upper unit contains Paleozoic mostly fine-grained clastic sequence metamorphosed in sub-greenschist facies, overlain by a proximal Adriatic facies consisting of Triassic shallow water carbonates. The lower unit is made up by a volcanic sequence overlain by Triassic carbonates metamorphosed in greenschists facies that bears a strong resemblance to the Triassic break-up volcanism and subsequent sedimentation affecting the distal Adriatic units observed elsewhere in the Jadar-Kopaonik unit of the Dinarides. The strong contrast between the Middle-Upper Triassic facies of the Medvednica Mountains suggests large scale thrusting during Cretaceous nappe stacking. Subsequently, the studied area has been affected by significant extensional deformation creating the present-day turtleback geometry. This resulted in the formation of brittle normal faults in both units, locally tilted by the uplift of the mountain core, which indicate mostly NE-SW extension. The lower unit is affected by a pervasive deformation characterized by a wide mylonitic shear zone with stretching lineations indicating consistently top-NE to E sense of shear. Low-temperature thermochronology and absolute age dating (in progress) will clarify the exact ages of nappe-stacking and subsequent extensional exhumation. The present-day geometry of the mountains was established during the Pliocene-Quaternary inversion. Furthermore, the results demonstrate that the extensional geometry and sense of shear is typical for the Miocene extensional exhumation and basin formation that affected the AdriaEurope contact elsewhere in the Dinarids, e.g. Kozara-Prosara-Motajica and Fruska Gora extensional structures. By comparing similar extensional features observed in for instance the Rechnitz and Pohorje extensional structures, the combined study potentially demonstrates that the Miocene mechanism of extension and sense of shear is structurally coherent at the scale of the entire Dinaridic and Alpine margins.
- Published
- 2013
32. On the formation and evolution of the Pannonian Basin: Constraints derived from the structure of the junction area between the Carpathians and Dinarides
- Author
-
Matenco, L. and Radivojević, D.
- Subjects
Aardwetenschappen - Abstract
The large number and distribution of rollback systems in Mediterranean orogens infer the possibility of interacting extensional back-arc deformation driven by different slabs. The formation of the Pannonian back-arc basin is generally related to the rapid Miocene rollback of a slab attached to the European continent. A key area of the entire system that is neglected by kinematic studies is the connection between the South Carpathians and Dinarides. In order to derive an evolutionary model, we interpreted regional seismic lines traversing the entire Serbian part of the Pannonian Basin. The observed deformation is dominantly expressed by the formation of Miocene extensional detachments and (half) grabens. The extensional geometries and associated synkinematic sedimentation that migrated in time and space allow the definition of a continuous and essentially asymmetric early to late Miocene extensional evolution. This evolution was followed by the formation of few uplifted areas during the subsequent latest Miocene–Quaternary inversion. The present-day extensional geometry changing the strike across the basin is an effect of the clockwise rotation of the South Carpathians and Apuseni Mountains in respect to the Dinarides. Our study infers that the Carpathian rollback is not the only mechanism responsible for the formation of the Pannonian Basin; an additional middle Miocene rollback of a Dinaridic slab is required to explain the observed structures. Furthermore, the study provides constraints for the pre-Neogene orogenic evolution of this junction zone, including the affinity of major crustal blocks, obducted ophiolitic sequences and the Sava suture zone.
- Published
- 2012
33. Constraining forcing factors and relative sea-level fluctuations in semi-enclosed basins: the Late Neogene demise of Lake Pannon
- Author
-
ter Borgh, M., Radivojević, D., Matenco, L., Tectonics, Cynthia Ebinger, George Hilley, Rebecca Bell, Atle Rotevatn and Andreas Mulch, and Tectonics
- Subjects
geography ,geography.geographical_feature_category ,Earth science ,Inversion (geology) ,Pull apart basin ,Geology ,Structural basin ,Sedimentary basin ,Back-stripping ,Paleontology ,Basin modelling ,Sedimentary basin analysis ,Foreland basin - Abstract
Sedimentary basins are affected by a large number of forcing factors during their evolution and as a result, it is often difficult to isolate the contribution of each individual factor. Many forcing factors are temporally and spatially heterogeneous; they do not affect all parts of the basin in the same way and at the same time. We show that this heterogeneity can be used to identify the contributions of forcing factors by comparing various parts of a basin. This approach is applied to the Pannonian Basin, a back-arc basin located in Central Europe. In the basin, the amounts of crustal extension, tectonic inversion and sediment influx varied in space and time, while the connection with the marine realm fluctuated. In this study we focus on two currently unresolved issues: firstly, we establish by what processes and from what directions the basin was filled in, and secondly, we investigate whether the basin was affected by the Messinian Salinity Crisis. The analysis of seismic and well data in the previously less studied SE part of the basin demonstrate that progradation occurred from the southern and eastern basin margins, complementing the previously described progradation from the northwestern and northern basin margins. Elsewhere in the basin, an unconformity observed in the progradational basin infill is intensely debated to be the result of either the Messinian Salinity Crisis (MSC) or basin inversion. Having the advantage of minor Pliocene–Quaternary amounts of inversion in the studied part of the basin we show that no regional unconformity is present in the studied stratigraphic interval, which implies that the effects of the MSC on the basin were minor. We infer that being aware of the fact that the effects of relative sea/lake-level fluctuations may vary significantly across a basin is critical for understanding the evolution of semi-enclosed basins.
- Published
- 2015
34. Thermo-mechanical constraints for the continental collision mode in the SE Carpathians (Romania)
- Author
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Cloething, S., Burov, Evgenii, Matenco, L., Toussaint, G., Bertotti, G., Queyroy, Marie José, Laboratoire de tectonique (LT), Centre National de la Recherche Scientifique (CNRS)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Cergy Pontoise (UCP), and Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics ,[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics - Published
- 2004
35. The East Carpathians: transition from a coupled to an uncopuled orogen
- Author
-
Matenco, L., Bertotti, G.V., and Tectonics
- Published
- 2000
36. Post-collisional SE Carpathians slab position: an alternative to slab retreat and slab break-off models
- Author
-
Matenco, L., Bertotti, G.V., and Tectonics
- Published
- 2000
37. Tectonic evolution of the contact zone between the South Carpathians and the adjacent Moesian Platform
- Author
-
Matenco, L., Bertotti, G.V., Dinu, C., Cloetingh, S.A.P.L., Mocanu, V., and Tectonics
- Published
- 1998
38. Tectonic flexural modeling of the Romanian Carpathians foreland system
- Author
-
Matenco, L., Zoetemeijer, R., Cloetingh, S.A.P.L., Dinu, C., and Tectonics
- Published
- 1997
39. Tertiary evolution of the central Eastern Carpathians of Romania: small- and large-scale structures
- Author
-
Matenco, L., Bertotti, G.V., Tectonics, and Faculty of Earth and Life Sciences
- Published
- 1997
40. Constraining forcing factors and relative sea-level fluctuations in semi-enclosed basins: the Late Neogene demise of Lake Pannon.
- Author
-
Borgh, M., Radivojević, D., and Matenco, L.
- Subjects
SEDIMENTARY basins ,SEA level ,STRUCTURAL geology ,PLATE tectonics ,SALINITY ,ENVIRONMENTAL impact analysis - Abstract
Sedimentary basins are affected by a large number of forcing factors during their evolution and as a result, it is often difficult to isolate the contribution of each individual factor. Many forcing factors are temporally and spatially heterogeneous; they do not affect all parts of the basin in the same way and at the same time. We show that this heterogeneity can be used to identify the contributions of forcing factors by comparing various parts of a basin. This approach is applied to the Pannonian Basin, a back-arc basin located in Central Europe. In the basin, the amounts of crustal extension, tectonic inversion and sediment influx varied in space and time, while the connection with the marine realm fluctuated. In this study we focus on two currently unresolved issues: firstly, we establish by what processes and from what directions the basin was filled in, and secondly, we investigate whether the basin was affected by the Messinian Salinity Crisis. The analysis of seismic and well data in the previously less studied SE part of the basin demonstrate that progradation occurred from the southern and eastern basin margins, complementing the previously described progradation from the northwestern and northern basin margins. Elsewhere in the basin, an unconformity observed in the progradational basin infill is intensely debated to be the result of either the Messinian Salinity Crisis ( MSC) or basin inversion. Having the advantage of minor Pliocene-Quaternary amounts of inversion in the studied part of the basin we show that no regional unconformity is present in the studied stratigraphic interval, which implies that the effects of the MSC on the basin were minor. We infer that being aware of the fact that the effects of relative sea/lake-level fluctuations may vary significantly across a basin is critical for understanding the evolution of semi-enclosed basins. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
41. The tectonic evolution of a critical segment of the Dinarides-Alps connection: Kinematic and geochronological inferences from the Medvednica Mountains, NE Croatia.
- Author
-
Gelder, I. E., Matenco, L., Willingshofer, E., Tomljenović, B., Andriessen, P. A. M., Ducea, M. N., Beniest, A., and Gruić, A.
- Abstract
The transition zone between the Alps and Dinarides is a key area to investigate kinematic interactions of neighboring orogens with different subduction polarities. A study combining field kinematic and sedimentary data, microstructural observations, thermochronological data (Rb-Sr and fission track), and regional structures in the area of Medvednica Mountains has revealed a complex polyphase tectonic evolution. We document two novel stages of extensional exhumation. The first stage of extension took place along a Late Cretaceous detachment following the late Early Cretaceous nappe stacking, burial, and greenschist facies metamorphism. Two other shortening events that occurred during the latest Cretaceous-Oligocene were followed by a second event of extensional exhumation, characterized by asymmetric top-NE extension during the Miocene. Top-NW thrusting took place subsequently during the Pliocene inversion of the Pannonian Basin. The Cretaceous nappe burial, Late Cretaceous extension, and the Oligocene(-Earliest Miocene) contraction are events driven by the Alps evolution. In contrast, the latest Cretaceous-Eocene deformation reflects phases of Dinaridic contraction. Furthermore, the Miocene extension and subsequent inversion display kinematics similar with observations elsewhere in the Dinarides and Eastern Alps. All these processes demonstrate that the Medvednica Mountains were affected by Alpine phases of deformations to a much higher degree than previously thought. Similarly with what has been observed in other areas of contractional polarity changes, such as the Mediterranean, Black Sea, or New Guinea systems, the respective tectonic events are triggered by rheological weak zones which are critical for localizing the deformation created by both orogens. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
42. Gravity and magnetic modelling in the Vrancea Zone, south-eastern Carpathians: Redefinition of the edge of the East European Craton beneath the south-eastern Carpathians
- Author
-
Bocin, A., Stephenson, R., Matenco, L., Mocanu, V., Tectonics, and Tectonics
- Subjects
Precambrian ,Tectonics ,Geophysics ,Basement (geology) ,Lithosphere ,Delamination (geology) ,Crust ,East European Craton ,Geology ,Seismology ,Earth-Surface Processes ,Nappe - Abstract
A 2D gravity and magnetic data model has been constructed along a 71 km densely observed profile, called DACIA PLAN GRAV MAN's. The profile crosses part of the nappe pile of the south-eastern Carpathians and includes the seismically active Vrancea Zone and was acquired with the objective to illuminate the basement structure and affinity in this area. The modelling approach was to create an initial model from well constrained geological information, integrate it with previous seismic ray tracing and tomographic models and then alter it outside the a priori constraints in order to reach the best fit between observed and calculated potential field anomalies. The results support a realignment of the position of the TTZ (Tornquist-Teisseyre Zone), the profound tectonic boundary within Europe that separates Precambrian cratonic lithosphere of the East European Craton (EEC) from younger accreted lithosphere of Phanerozoic mobile belts to its west. The TTZ is shown to lie further to the south-west than was previously inferred within Romania, where it is largely obscured by the Carpathian nappes. The crust of the EEC beneath the south-eastern Carpathians is inferred to terminate along a major crustal structure lying just west of the Vrancea seismogenic zone. The intermediate depth seismicity of the Vrancea Zone therefore lies within the EEC lithosphere, generally supporting previously proposed models invoking delamination of cratonic lithosphere as the responsible mechanism.
- Published
- 2013
43. Observation of present-day tectonic motions in the Southeastern Carpathians: Results of the ISES/CRC-461 GPS measurements
- Author
-
van der Hoeven, A.G.A., Mocanu, V., Spakman, W., Nutto, M., Nuckelt, A., Matenco, L., Munteanu, L., Marcu, C., and Ambrosius, B.A.C.
- Published
- 2005
- Full Text
- View/download PDF
44. Effects of large sea-level variations in connected basins: the Dacian- Black Sea system of the Eastern Paratethys.
- Author
-
Munteanu, I., Matenco, L., Dinu, C., and Cloetingh, S.
- Subjects
- *
SEA level , *WATER depth , *BATHYMETRIC maps , *SEDIMENTATION & deposition - Abstract
Sea-level changes provide an important control on the interplay between accommodation space and sediment supply, in particular, for shallow-water basins where the available space is limited. Sediment exchange between connected basins separated by a subaqueous sill (bathymetric threshold) is still not well understood. When sea-level falls below the bathymetric level of this separating sill, the shallow-water basin evolution is controlled by its erosion and rapid fill. Once this marginal basin is filled, the sedimentary depocenter shifts to the open marine basin (outward shift). With new accommodation space created during the subsequent sea-level rise, sediment depocenter shifts backwards to the marginal basin (inward shift). This new conceptual model is tested here in the context of Late Miocene to Quaternary evolution of the open connection between Dacian and Black Sea basins. By the means of seismic sequence stratigraphic analysis of the Miocene- Pliocene evolution of this Eastern Paratethys domain, this case study demonstrates these shifts in sedimentary depocenter between basins. An outward shift occurs with a delay that corresponds to the time required to fill the remaining accommodation space in the Dacian Basin below the sill that separates it from the Black Sea. This study provides novel insight on the amplitude and sedimentary geometry of the Messinian Salinity Crisis ( MSC) event in the Black Sea. A large (1.3-1.7 km) sea-level drop is demonstrated by quantifying coeval sedimentation patterns that change to mass-flows and turbiditic deposits in the deep-sea part of this main sink. The post- MSC sediment routing continued into the present-day pattern of Black Sea rivers discharge. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
45. Modelling depositional shifts between sedimentary basins: Sediment pathways in Paratethys basins during the Messinian Salinity Crisis
- Author
-
Bartol, J., Matenco, L., Garcia-Castellanos, D., and Leever, K.
- Subjects
- *
SEDIMENTATION & deposition , *SEDIMENTARY basins , *SALINITY , *ABSOLUTE sea level change , *NUMERICAL analysis , *CLIMATE change - Abstract
Abstract: The evolution of sedimentary basins separated by uplifted topographic barriers is characterised by gradual regressive deposition until one of the basins is filled and its sedimentation bypasses to the adjacent basin, defining a depositional shift. One of the critical parameters controlling these depositional shifts is sea level variation, its drop potentially triggering a depositional shift by cancelling the available accommodation space. Conversely, a sea level rise can create new accommodation space resulting in a depositional shift towards a previously overfilled basin. Here we use a three dimensional numerical model to study the sedimentary response to sea level variations of a system of two basins. In this model, a single mountainous source area is feeding an intra-continental basin that is separated by a submarine barrier from another basin with normal marine bathymetry. The sedimentary response is modelled during a cycle of sea-level drop and subsequent rebound that exposes the barrier to sub-aerial erosion. The examined parameters are the barrier height, magnitude and duration of sea level change, climate and flexural rigidity. Modelling demonstrates that shifting the bulk of sedimentation from the continental basin to the open marine environment requires some minimum magnitudes and durations of sea level drop. Moreover, given the specific geometry and parameters of our model, an intervening barrier causes a delay of up to 0.35Myr, depending on the magnitude and duration of sea level change, to the onset of an outward depositional shift when compared to a situation without a barrier. These depositional shifts depend on changes in climate, magnitude and duration of sea level change. Model results are applied to the connectivity between the Black Sea and the Dacic Basin, suggesting that depositional shifts observed during the Messinian Salinity Crisis can be explained by a sea level drop of >1000m in the Black Sea. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
46. Toward understanding the post-collisional evolution of an orogen influenced by convergence at adjacent plate margins: Late Cretaceous-Tertiary thermotectonic history of the Apuseni Mountains.
- Author
-
Merten, S., Matenco, L., Foeken, J. P. T., and Andriessen, P. A. M.
- Abstract
The relationship between syn- to post-collisional orogenic shortening and stresses transmitted from other neighboring plate boundaries is important for understanding the kinematics of mountain belts, but has received little attention so far. The Apuseni Mountains are an example of an orogen in the interference zone between two other subduction systems located in the external Carpathians and Dinarides. This interference is demonstrated by the results of a combined thermochronological and structural field study that quantifies the post-collisional latest Cretaceous-Tertiary evolution. The exhumation history derived from apatite fission track and (U-Th)/He thermochronology indicates that the present-day topography of the Apuseni Mountains originates mainly from latest Cretaceous times, modified by two tectonic pulses during the Paleogene. The latter are suggested by cooling ages clustering around ∼45 Ma and ∼30 Ma and the associated shortening recorded along deep-seated fault systems. Paleogene exhumation pulses are similar in magnitude (∼3.5 km) and are coeval with the final collisional phases recorded in the Dinarides and with part of the Carpathian rotation around the Moesian promontory. These newly quantified Paleogene exhumation and shortening pulses contradict the general view of tectonic quiescence, subsidence and overall sedimentation for this time interval. The Miocene collapse of the Pannonian Basin did not induce significant regional exhumation along the western Apuseni flank, nor did the subsequent Carpathian collision. This is surprising in the overall context of Pannonian Basin formation and its subsequent inversion, in which the Apuseni Mountains were previously interpreted as being significantly uplifted in both deformation stages. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
47. The evolution of the Danube gateway between Central and Eastern Paratethys (SE Europe): Insight from numerical modelling of the causes and effects of connectivity between basins and its expression in the sedimentary record
- Author
-
Leever, K.A., Matenco, L., Garcia-Castellanos, D., and Cloetingh, S.A.P.L.
- Subjects
- *
PALEOGEOGRAPHY , *NUMERICAL analysis , *SEDIMENTS , *SEDIMENTARY basins , *LITHOSPHERE , *SEA level , *MATHEMATICAL models - Abstract
Abstract: The Pannonian and Dacic Basins in SE Europe are presently connected by the Danube River across the South Carpathians, to which they are in a back-arc and foreland position respectively. Part of the Paratethys realm during the Neogene, open water communication between the basins was interrupted by the Late Miocene uplift of the Carpathians. Different mechanisms have been proposed for the formation of the Danube gateway: capture of the upstream lake or an upstream river or incision of an antecedent river. Estimates on its age range from Late Miocene to Quaternary. A related issue is the effect of the large Mediterranean sea level fall related to the Messinian Salinity Crisis on the Paratethys subbasins, specifically the “isolated” Pannonian Basin. In a synthetic numerical modelling study, using a pseudo-3D code integrating tectonics, surface processes and isostasy, we addressed the causes and effects of changes in connectivity between two large sedimentary basins separated by an elevated barrier. Specifically, we aimed to find the expression of connectivity events in the sedimentary record in general and the consequences for the evolution of the Pannonian–Dacic area in particular. We studied a range of parameters including the geometry and uplift rate of the barrier, downstream sea level change and lithosphere rigidity. We found that changes in connectivity are expressed in the sedimentary record through their effect on base level in the upstream basin and supply in the downstream basin. The most important factors controlling the response are the elevation difference between the basins and the upstream accommodation space at the time of reconnection. The most pronounced effect of reconnection through lake capture is predicted for a large elevation difference and limited upstream accommodation space. Downstream increase in sediment supply is dependent on the latter rather than the reconnection event itself. Of the parameters we tested, the rigidity of the lithosphere was found to be of major importance by its control on sediment loaded subsidence and generation of accommodation space. A downstream sea level change is unlikely to induce capture, but may affect the upstream lake level by enhancing incision in a pre-existing gateway. In the Pannonian–Dacic region, the mechanically weak, continuously subsiding Pannonian lithosphere allowed accommodation of significant volumes of continental sedimentation and as a consequence, transfer of excess sediment to the downstream Dacic Basin was only gradual. The Messinian sea level fall in the Dacic Basin could have been recorded in the Pannonian Basin only if a connection between the basins already existed. More detailed modelling of river incision taking into account lateral differences in erodibility in the South Carpathians will be required to give better time constraints on the formation of the Danube Gateway. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF
48. Late orogenic vertical movements in the Carpathian Bend Zone – seismic constraints on the transition zone from orogen to foredeep.
- Author
-
Leever, K. A., Matenco, L., Bertotti, G., Cloetingh, S., and Drijkoningen, G. G.
- Subjects
- *
OROGENIC belts , *CONSTRUCTION slabs , *CONSTRUCTION materials , *GEOLOGICAL basins - Abstract
Postcollisional tectonic movements in orogens and their adjacent foreland basins related to intraplate stresses and the presence of a remnant slab are likely to induce significant deformations overprinting the existing patterns of nappe emplacement. In the Carpathian Bend Zone, Romania, vertical motions associated with very limited postorogenic intraplate shortening are of similar magnitude as those generally caused by large orogenic deformations. In the Latest Miocene–Pliocene, up to 6 km of postcollisional sediments of remarkably parallel stratification were deposited in a basin extending over a large part of the present-day orogen. The Early Quaternary featured a dramatical change as the orogen was uplifted while subsidence continued in the basin, tilting the basin flank adjacent to the orogen to a vertical position. The remnant slab presently below the Bend zone in Vrancea is the prime mechanism to have driven the Pliocene subsidence. The Quaternary changes and the eastwards migration of the pattern of vertical motions can be explained by large-scale folding, in response to the overall compressive regime that is recorded in the whole Pannonian-Carpathian area. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
49. Tertiary tectonic evolution of the external South Carpathians and the adjacent Moesian platform...
- Author
-
Matenco, L., Bertotti, G., Dinu, C., and Cloetingh, S.
- Subjects
PLATE tectonics ,OUTCROPS (Geology) - Abstract
Presents a derivation of the tectonic evolution of the South Carpathians-Moesian platform area. Depth-interpreted seismic sections of the Getic Depression foredeep; Analysis of outcrop- to regional-scale structures; Opening of WSW-ENE to E-W trending extensional basins; Dextral transpressive to transtensional movement within an E-W trending corridor.
- Published
- 1997
50. Probing tectonic topography in the aftermath of continental convergence in central Europe.
- Author
-
Cloetingh, S., Horváth, F., Dinu, C., Stephenson, R. A., Bertotti, G., Bada, G., Matenco, L., and Garcia-Castellanos, D.
- Published
- 2003
- Full Text
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