27 results on '"Matenco, L."'
Search Results
2. Far-field strain transmission and contractional step-overs
- Author
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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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3. 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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4. 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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5. 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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6. 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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7. 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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8. 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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9. 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., and Gerya, T.
- 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. [ABSTRACT FROM AUTHOR]
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- 2018
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10. Observation of present-day tectonic motions in the Southeastern Carpathians: Results of the ISES/CRC-461 GPS measurements
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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.
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- 2005
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11. Modelling depositional shifts between sedimentary basins: Sediment pathways in Paratethys basins during the Messinian Salinity Crisis
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Bartol, J., Matenco, L., Garcia-Castellanos, D., and Leever, K.
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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]
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- 2012
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12. 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
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Leever, K.A., Matenco, L., Garcia-Castellanos, D., and Cloetingh, S.A.P.L.
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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]
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- 2011
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13. 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., and Shuib, M.K.
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CRETACEOUS Period , *METAMORPHIC rocks , *THERMOCHRONOMETRY , *METAMORPHISM (Geology) - 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. [ABSTRACT FROM AUTHOR]
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- 2017
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14. 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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SEDIMENTATION & deposition , *GEOLOGICAL basins , *STRUCTURAL geology , *STRATIGRAPHIC geology , *GEOLOGIC faults - Abstract
The coupled tectonic and depositional history of extensional basins is usually described in terms of stratigraphic sequences linked with the activity of normal faults. This depositional-kinematic interplay is less understood in basins bounded by major extensional detachments or normal fault systems associated with significant exhumation of footwalls. Of particular interest is the link between tectonics and sedimentation during the migration of normal faulting in time and space across the basin. One area where such coupled depositional-kinematic history can be optimally studied is the Late Oligocene - Miocene Sarajevo-Zenica Basin, located in the Dinarides Mountains of Bosnia and Herzegovina. This intra-montane basin recorded Oligocene – Pliocene sedimentation in an endemic and isolated lake environment. We use field kinematic and sedimentological mapping in outcrops correlated with existing local and regional studies to derive a high-resolution evolutionary model of the basin. The novel results demonstrate a close correlation between moments of normal faulting and high-order sedimentological cycles, while the overall extensional basin was filled by a largely uni-directional sediment supply from the neighbouring mountain chain. The migration in time and space of listric NE-dipping normal faults was associated with a gradual shift of the sedimentological environment. Transgressive-regressive cycles reflect sequential displacements on normal faults and their footwall exhumation, defining a new sedimentological model for such basins. This Early - Middle Miocene extension affected the central part of the Dinarides and was associated with the larger opening of the neighbouring Pannonian Basin. The extension was preceded and followed by two phases of contraction. The Oligocene - Early Miocene thrusting took place during the final stages of the Dinarides collision, while the post-Middle Miocene contraction is correlated with the regional indentation of the Adriatic continental unit. This latter phase inverted the extensional basin by reactivating the inherited basal listric detachment. [ABSTRACT FROM AUTHOR]
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- 2017
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15. 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., and Shuib, M.K.
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OROGENIC belts , *EXHUMATION , *TRIASSIC Period , *DEFORMATIONS (Mechanics) , *PERMIAN-Triassic boundary , *METAMORPHOSIS , *PALEOZOIC Era - 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. [ABSTRACT FROM AUTHOR]
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- 2016
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16. Lateral variations in mechanical properties of the Romanian external Carpathians: inferences of flexure and gravity modelling
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Maţenco, L., Zoetemeijer, R., Cloetingh, S., and Dinu, C.
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- 1997
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17. 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.
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Bocin, A., Stephenson, R., Matenco, L., and Mocanu, V.
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GRAVITY , *EARTHQUAKES , *CRATONS , *LITHOSPHERE , *CRUST of the earth - Abstract
Highlights: [•] Gravity and magnetic crustal model of the earthquake prone Vrancea Zone, Romania. [•] The crust of the East European Craton (EEC) terminates west of the Vrancea Zone. [•] The Tornquist-Tesseyre Zone in Romania lies beneath the south-eastern Carpathians. [•] Vrancea Zone intermediate depth earthquakes occur within the EEC lithosphere. [ABSTRACT FROM AUTHOR]
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- 2013
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18. Mechanics of basin inversion: Finite element modelling of the Pannonian Basin System
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Jarosinski, M., Beekman, F., Matenco, L., and Cloetingh, S.
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GEODYNAMICS , *GEOLOGICAL basins , *FINITE element method , *STRUCTURAL geology , *LITHOSPHERE , *MORPHOTECTONICS , *ROCK deformation - Abstract
Abstract: This finite element modelling study addresses the contraction of rheologically layered and laterally heterogeneous lithosphere representative for the Pannonian Basin and its surroundings. The time interval and strain rate adopted in the experiments reflect the Pliocene–Quaternary inversion of the basin. Several sets of fully coupled elastoviscoplastic thermo-mechanical, plane strain 2D models explore the evolution of buckling, and stress/strain changes across the lithosphere. The viscous rheology of the asthenosphere allows for a detailed simulation of isostatic rebound during deformation. The numerical models predict the successive development of surface undulations, caused by crustal and/or lithosphere folding, at three different characteristic wavelengths. Among these, the longest wavelength folds occur systematically at the rim of the basin as marginal bulges, while the short wavelength folds overprint the earlier folds and are observed at a later stage during compression. The thermo-mechanical evolution of the lithosphere in response to progressive horizontal contraction is described in terms of a characteristic delay of the changes in the stress regime and a reduction of elastic strain in the strong crustal layers. The models predict a change in stress state along the flanks of the basin, caused by the development of weak basin lithosphere in their vicinity. Comparing the modelling results with tectonic features of the Pannonian Basin has resulted in the identification of three different stages in the Pliocene–Quaternary basin inversion of the Pannonian–Carpathian system. [Copyright &y& Elsevier]
- Published
- 2011
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19. Late Pliocene–Quaternary tectonics in the frontal part of the SE Carpathians: Insights from tectonic geomorphology
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Necea, Diana, Fielitz, W., and Matenco, L.
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HOMOTOPY theory , *GEOMORPHOLOGY , *SANITARY engineering , *AGRICULTURAL engineering - Abstract
Abstract: The Romanian East Carpathians display large-scale heterogeneities along the mountain belt, unusual foredeep geometries, significant post-collisional and neotectonic activity, and major variations in topography, mostly developed in the aftermath of late Miocene (Sarmatian; ∼11 Ma) subduction/underthrusting and continental collision between the East European/Scythian/Moesian foreland and the inner Carpathians Tisza-Dacia unit. In particular, the SE corner of the arcuate orogenic belt represents the place of still active large-scale differential vertical movements between the uplifting mountain chain and the subsiding Focşani foredeep basin. In this key area, we have analysed the configuration of the present day landforms and the drainage patterns in order to quantify the amplitude, timing and kinematics of these post-collisional late Pliocene–Quaternary vertical movements. A river network is incising in the upstream a high topography consisting of the external Carpathians nappes and the Pliocene–Lower Pleistocene sediments of the foreland. Further eastwards in the downstream, this network is cross-cutting a low topography consisting of the Middle Pleistocene–Holocene sediments of the foreland. Geological observations and well-preserved geomorphic features demonstrate a complex succession of geological structures. The late Pliocene–Holocene tectonic evolution is generally characterised by coeval uplift in the mountain chain and subsidence in the foreland. At a more detailed scale, these vertical movements took place in pulses of accelerated motion, with laterally variable amplitude both in space and in time. After a first late Pliocene uplifting period, subsidence took place during the Earliest Pleistocene resulting in a basal Quaternary unconformity. This was followed by two, quantifiable periods of increased uplift, which affected the studied area at the transition between the Carpathians orogen and the Focşani foreland basin in the late Early Pleistocene and the late Middle to late Pleistocene. Both large-scale deformation events affected the western Focşani basin flank, tilting the entire structure with ∼9° during the late Early Pleistocene and uplifted it as a block during the early Late Pleistocene. The late Early Pleistocene tilting resulted in ∼750 m uplift near the frontal monocline and by extrapolation in a presumed 3000 m uplift near the central parts of the Carpathians. The late Middle to late Pleistocene cumulative uplift reaches ∼250 m and correlates with a contemporaneous progradation of the uplifted areas towards the Focşani Basin. The uplifting events are separated by a second Quaternary unconformity. On the whole, the late Pliocene–Quaternary evolution of the Carpathians orogen/Focşani basin structure indicate large-scale differential uplift during the latest stages of a continuous post-collisional orogenic evolution. [Copyright &y& Elsevier]
- Published
- 2005
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20. Coupled kinematic and thermal modelling of collisional orogens: Implications for subsurface geo-resources assessment in the external Dinarides.
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Nader, F.H., van Unen, M., Darnault, R., Rudkiewicz, J.-L., and Matenco, L.
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OROGENIC belts , *GEOTHERMAL wells , *GEOLOGICAL cross sections , *THERMAL conductivity , *TEMPERATURE distribution , *FLUID flow - Abstract
The thermal evolution of collisional orogens is largely controlled by their kinematic and burial/exhumation history, where sedimentation and erosion rates, as well as shear heating and deep heat flow supply conditions for the temperature distribution, fluid flow and the associated fluid-rock interactions. The aim of our research is to understand this coupled kinematic and thermal evolution to ultimately infer the conditions favourable for subsurface geo-resources. We achieve this aim by means of numerical modelling and its application to one of the best available orogenic indentation examples, which is the Dinarides Mountains chain in Central Europe. Based on the analysis and modelling of an integrated onshore and offshore geological cross-section, we quantified the shortening, erosion/exhumation and sedimentation/burial rates, maturity of potential petroleum source rocks and the gross potential for sustainable geothermal resources. The coupled kinematic/thermal modelling revealed a general pattern of heat flow variations associated with crustal deformations. The hanging-wall and upper parts of the footwalls show increased conductivity and heat flow during episodes of thrusting, whereas the deepest parts of footwalls have lower heat flow values. Fluids are observed to migrate towards the foreland during the latest Cretaceous – Early Oligocene thrusting. The largest amounts of post-Middle Miocene shortening took place in the SE external parts of the orogen, where deep-sourced fluid ascent took place towards the foreland. In this region, significant footwall burial enhanced the maturation of potential source rocks. Modelling results infer a considerable hydrocarbon potential for the Dalmatian unit and the South Adriatic basin. The kinematic and thermal model combined with geothermal well design and well performance calculations infer a viable geothermal energy potential for the Dalmatian and High-Karst units. Results of this novel workflow allowed to quantify the orogenic kinematic and thermal history, and its bearing on conventional and sustainable geo-resources. • Coupled kinematic and thermal processes in collisional orogens. • Geodynamic processes influence on thin- and thick-skinned tectonics. • Implications of heat evolution for subsurface geo-resources. • Shortening, exhumation, erosion and sedimentation during the Dinarides evolution. [ABSTRACT FROM AUTHOR]
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- 2023
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21. Probing connections between deep earth and surface processes in a land-locked ocean basin transformed into a giant saline basin: The Mediterranean GOLD project#.
- Author
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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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GEOLOGICAL basins , *EARTH'S mantle , *LITHOSPHERE , *SEA level , *GLACIAL isostasy - Abstract
During the last decade, the interaction of deep processes in the lithosphere and mantle with surface processes (erosion, climate, sea-level, subsidence, glacio-isostatic readjustment) has been the subject of heated discussion. The use of a multidisciplinary approach linking geology, geophysics, geodesy, modelling, and geotechnology has led to the awareness of coupled deep and surface processes. Deep earth dynamics (topography, erosion, tectonics) are strongly connected to natural hazards such as earthquakes, landslides, and tsunamis; sedimentary mass transfers have important consequences on isostatic movements and on georesources, geothermal energy repartitions. The ability to read and understand the link between deep Earth dynamics and surface processes has therefore important societal impacts. Ground-truthing at carefully-selected sites of investigation is imperative to better understand these connections. Due to its youth (<30 Ma) and its subsidence history, the almost land-locked Gulf of Lion–Sardinia continental margins system provides a unique record of sedimentary deposition from the Miocene to present. Due to its high subsidence rate, palaeoclimatic variations, tectonic events and vertical evolution are all recorded here at very high resolution. The late Miocene isolation and desiccation of the Mediterranean, the youngest and most catastrophic event, the Messinian Salinity Crisis (MSC), induced drastic changes in marine environments: widespread deposition of evaporite (gypsum, anhydrite and halite) in the central basin, and intense subaerial erosion along its periphery. These extraordinary mass transfers from land to sea induced strong isostatic re-adjustments that are archived in the sedimentary record and represent a window to the lithospheric rheology and the deep processes. The GOLD (Gulf of Lion Drilling) project, proposes to explore this unique sedimentary record as well as the nature of the deep crustal structure, providing valuable information about the mechanisms underlying vertical motions in basins and their margins. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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22. Jurassic arc volcanism on Crimea (Ukraine): Implications for the paleo-subduction zone configuration of the Black Sea region
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Meijers, M.J.M, Vrouwe, B., van Hinsbergen, D.J.J., Kuiper, K.F., Wijbrans, J., Davies, G.R., Stephenson, R.A., Kaymakcı, N., Matenco, L., and Saintot, A.
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JURASSIC stratigraphic geology , *VOLCANISM , *CRETACEOUS stratigraphic geology , *ISLAND arcs , *GEOCHEMISTRY , *X-ray spectroscopy - Abstract
Abstract: The early Cretaceous and younger opening of the Black Sea has obliterated much of the older record of Tethyan subduction below southeastern Europe. The earlier Mesozoic evolution was dominated by opening and closure of Tethyan oceans between Gondwana and Laurasia with their consumption, at least in part, accommodated along the southern Eurasian margin. Crimea (Ukraine), a peninsula in the northern Black Sea, represents the northernmost region of southeastern Europe that exposes a record of a pre-Cretaceous Tethyan active margin. To shed new light on the paleosubduction zone configuration of the southeastern European margin in the Jurassic, we report 40Ar/39Ar isotope dating on 10 samples and whole rock geochemistry on 31 samples from supposedly Jurassic magmatic rocks from the Crimean peninsula. The samples can be subdivided into two age groups: middle Jurassic (~172–158Ma) and uppermost Jurassic to lowermost Cretaceous (~151–142Ma), that both have a subduction-related geochemical signature. The ages of the younger group are in conflict with previously assigned biostratigraphic ages of the units under- and overlying the volcanic complex. This might suggest a scenario where the latter were juxtaposed by faulting. We argue that the Crimean volcanics represent a fragment of a volcanic arc overlying the southeastern European continental margin. These data therefore provide evidence for Jurassic northwards subduction below the Eurasian margin, preceding the opening of the Black Sea as a back-arc basin. We argue that the corresponding Jurassic trench was already positioned south of the Turkish Pontides and the Caucasus belt, implying a very shallow slab angle in the Jurassic. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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23. The effects of a lateral variation in lithospheric strength on foredeep evolution: Implications for the East Carpathian foredeep
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Leever, K.A., Bertotti, G., Zoetemeijer, R., Matenco, L., and Cloetingh, S.A.P.L.
- Subjects
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GRAVIMETRY , *GEOMETRY , *WAVELENGTHS , *BENDING (Metalwork) - Abstract
Abstract: Lateral variations in lithospheric strength have been adopted often in flexural modeling (both 2D and 3D) to better fit the observed basement deflections, typically supported by gravity data. This approach provides essentially a “snap-shot” of the role of lithosphere strength in determining the present day geometry. In contrast, we investigate and quantify the effects of a lateral change in lithospheric strength on the evolution of the foredeep in front of an advancing orogen. Transitions in lithospheric strength are common in the foreland of orogens and show large variations in the width of the transition zone and the strength difference. Former passive margins, for instance, will display strength changes distributed over several tens to hundreds of kilometers. Other transitions may originate from juxtaposition or accretion of pieces of lithosphere with different properties and may be characterized by a much smaller width than former passive margins. In our modeling, a constant load, representing an advancing orogenic belt, is displaced towards and across a transition from a weak to a strong plate in a 2D elastic thin plate model. The effect of different transition widths and strength contrasts on foredeep geometry and bending stress is investigated. Interference of flexural wavelengths across the transition affects foredeep geometry by causing rapid basin widening, oscillation of the bulge and volume increase. The bending stresses are found to concentrate and amplify around the strength transition. Large transition gradients, i.e. large strength contrast or small transition width, cause the highest rates of change. Basin widening caused by the orogenic load advancing towards the transition between the East European Craton and the Moesian Platform, appears to control the Sarmatian transgression over the East Carpathian foreland in Romania. [Copyright &y& Elsevier]
- Published
- 2006
- Full Text
- View/download PDF
24. Stratigraphic and structural characteristics of the Romanian Black Sea shelf
- Author
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Dinu, C., Wong, H.K., Tambrea, D., and Matenco, L.
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SEA level , *OCEANOGRAPHY , *EROSION , *NEOGENE paleoclimatology - Abstract
Abstract: The Western Black Sea basin opened during Cretaceous times by back-arc rifting in association with a north dipping subduction at the rear of the Cretaceous–Early Tertiary Pontide volcanic arc. The sedimentary wedge developed on the shelf of the Romanian Black Sea sector reflects a complex interplay between large scale rifting, uplift of the orogenic flanks, large-scale post-rift subsidence and sea level changes. We examine the detailed structural configuration of this sector for a regional correlation with the adjacent offshore in Ukraine and Bulgaria. The evolution of the western Black Sea basin started in the Albian–Cenomanian times, when two extensional phases with significantly different directions (N–S and subsequently E–W) lead to the formation of a complex interplay between isolated blocks organised in horsts and grabens generally deepening eastwards. Superposition of normal faults footwall blocks from the two extensional episodes generated a deeply subsided area with enhanced accommodation space, i.e., the Histria Depression, and, consequently, recorded a larger thickness of Paleogene sediments in the post-rift stage. (Re)activation of faults and associated folding reflects repeated inversion during the Late Cretaceous–Oligocene times, associated with subsequent periods of non-deposition and/or erosion during moments of basin fill exposure. These periods of inversion recorded in the Black Sea are controlled by coeval orogenic deformations taking place in the Balkans, Pontides and the Crimean thrust belt. Sea level fluctuations during the Neogene and late Alpine tectonics in the neighbouring orogens caused massive sedimentation followed by sediment starvation and/or significant erosion. Large thicknesses of sediments accumulated during the Pontian, presumably associated with an extensional episode deepening the distal parts of the basin and with differential compaction structures. The interpretation of a high-quality seismic dataset combined with published data allowed the correlation of major structural units and lineaments defined onshore towards the Carpathians with the ones deeply buried below the western Black Sea basin sediments. Unit correlations are furthermore used to derive an integrated tectonic image of the western Black Sea area. [Copyright &y& Elsevier]
- Published
- 2005
- Full Text
- View/download PDF
25. Near-vertical seismic reflection image using a novel acquisition technique across the Vrancea Zone and Foscani Basin, south-eastern Carpathians (Romania)
- Author
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Panea, I., Stephenson, R., Knapp, C., Mocanu, V., Drijkoningen, G., Matenco, L., Knapp, J., and Prodehl, K.
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SEDIMENTARY basins , *PLATE tectonics , *SEISMIC waves - Abstract
Abstract: The DACIA PLAN (Danube and Carpathian Integrated Action on Process in the Lithosphere and Neotectonics) deep seismic sounding survey was performed in August–September 2001 in south-eastern Romania, at the same time as the regional deep refraction seismic survey VRANCEA 2001. The main goal of the experiment was to obtain new information on the deep structure of the external Carpathians nappes and the architecture of Tertiary/Quaternary basins developed within and adjacent to the seismically-active Vrancea zone, including the Focsani Basin. The seismic reflection line had a WNW–ESE orientation, running from internal East Carpathians units, across the mountainous south-eastern Carpathians, and the foreland Focsani Basin towards the Danube Delta. There were 131 shot points along the profile, with about 1 km spacing, and data were recorded with stand-alone RefTek-125s (also known as “Texans”), supplied by the University Texas at El Paso and the PASSCAL Institute. The entire line was recorded in three deployments, using about 340 receivers in the first deployment and 640 receivers in each of the other two deployments. The resulting deep seismic reflection stacks, processed to 20 s along the entire profile and to 10 s in the eastern Focsani Basin, are presented here. The regional architecture of the latter, interpreted in the context of abundant independent constraint from exploration seismic and subsurface data, is well imaged. Image quality within and beneath the thrust belt is of much poorer quality. Nevertheless, there is good evidence to suggest that a thick (∼10 km) sedimentary basin having the structure of a graben and of indeterminate age underlies the westernmost part of the Focsani Basin, in the depth range 10–25 km. Most of the crustal depth seismicity observed in the Vrancea zone (as opposed to the more intense upper mantle seismicity) appears to be associated with this sedimentary basin. The sedimentary successions within this basin and other horizons visible further to the west, beneath the Carpathian nappes, suggest that the geometry of the Neogene and recent uplift observed in the Vrancea zone, likely coupled with contemporaneous rapid subsidence in the foreland, is detached from deeper levels of the crust at about 10 km depth. The Moho lies at a depth of about 40 km along the profile, its poor expression in the reflection stack being strengthened by independent estimates from the refraction data. Given the apparent thickness of the (meta)sedimentary supracrustal units, the crystalline crust beneath this area is quite thin (<20 km) supporting the hypothesis that there may have been delamination of (lower) continental crust in this area involved in the evolution of the seismic Vrancea zone. [Copyright &y& Elsevier]
- Published
- 2005
- Full Text
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26. 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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PLATE tectonics , *EARTH sciences , *ENVIRONMENTAL degradation - Abstract
Abstract: To date, research on neotectonics and related continental topography development has mostly focused on active plate boundaries characterized by generally high deformation rates. The intraplate sedimentary basins and rifts of the Northern Alpine foreland are associated with a much higher level of neotectonic activity than hitherto assumed. Seismicity and stress indicator data, combined with geodetic and geomorphologic observations, demonstrate that Europe''s intraplate lithosphere is being actively deformed. This has major implications for the assessment of its natural hazards and environmental degradation. The lithosphere of the Northern Alpine foreland has undergone a polyphase evolution with an intense interplay between upper mantle thermal perturbations and stress-induced intraplate deformation that points to the importance of lithospheric folding of the thermally weakened lithosphere. In this paper, we address relationships between deeper lithospheric processes, neotectonics and surface processes in the Northern Alpine foreland with special emphasis on tectonically induced topography. The objectives are to quantify the effects of ongoing Alpine collision and Atlantic ridge-push on the intraplate deformation in Europe and its impact on topography evolution and related natural hazards. This paper reviews the four-dimensional topographic evolution of the European lithosphere through a multi-disciplinary approach linking geology, geophysics and geotechnology. Until now, research on neotectonics and related topography development of intraplate regions has received little attention. Our study examines a number of selected natural laboratories in continental Europe. From orogen through platform to continental margin, these natural laboratories include the Carpathians–Pannonian system, the Northwest European Platform, Iberia and the Atlantic continental margin. We focus on lithosphere memory and neotectonics with special attention to the thermo-mechanical structure of the lithosphere, mechanisms of large-scale intraplate deformation, Late-Neogene anomalies in subsidence and uplift, and links with surface processes and topography evolution. [Copyright &y& Elsevier]
- Published
- 2005
- Full Text
- View/download PDF
27. Editorial to the special Special Volume of Global and Planetary Change 'Coupled Deep Earth and Surface Processes'
- Author
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Fadi H. Nader, Alessandro Tibaldi, Benjamin van Wijck de Vries, Sierd Cloetingh, Liviu Matenco, Larissa Dobrzhinetskaya, Cloetingh, S, Matenco, L, Nader, F, van Wijck de Vries, B, Tibaldi, A, and Dobrzhinetskaya, L
- Subjects
Surface (mathematics) ,Global and Planetary Change ,020209 energy ,Tectonics ,02 engineering and technology ,Geophysics ,010502 geochemistry & geophysics ,Oceanography ,01 natural sciences ,Volume (thermodynamics) ,GEO/03 - GEOLOGIA STRUTTURALE ,0202 electrical engineering, electronic engineering, information engineering ,Earth (classical element) ,Geology ,0105 earth and related environmental sciences - Published
- 2018
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