A5036702958- Geological and Geophysical Studies Worldwide
- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Archaeological and Historical Studies
- Geological and Tectonic Studies in Latin America
- Archaeological and Geological Studies
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- Seismic Imaging and Inversion Techniques
- Geology and Paleoclimatology Research
- Reservoir Engineering and Simulation Methods
- Environmental and Ecological Studies
- Geological and Geophysical Studies
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- Geological formations and processes
- High-pressure geophysics and materials
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- Geomagnetism and Paleomagnetism Studies
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Instituto Andaluz de Ciencias de la Tierra
2004-2022
Universidad de Granada
2007-2022
Consejo Superior de Investigaciones Científicas
2006-2012
University of Lausanne
1991-1995
Universidad de Sevilla
1988-1992
The western Mediterranean subduction zone (WMSZ) extends from the northern Apennine to southern Spain and turns around forming narrow tight Calabrian Gibraltar Arcs. evolution of WMSZ is characterized by a first phase orogenic wedging followed, 30 Ma on, trench retreat back‐arc extension. Combining new previous geological data, tomographic images mantle, plate kinematics, we describe during last 35 Myr. Our reconstruction shows that two arcs form fragmentation 1500 km long in small, slabs....
Abstract 30-35 Ma ago a major change occurred in the Mediterranean region, from regionally compressional subduction coeval with formation of Alpine mountain belts, to extensional and backarc rifting. Backarc extension was accompanied by gravitational spreading belts formed before this Oligocene revolution. Syn-rift basins during process above detachments low-angle normal faults. Parameters that control kinematics such flat-lying are still poorly understood. From Aegean Sea Tyrrhenian Alboran...
The westernmost part of the Mediterranean Alpine Belt is represented by Betic‐Rif orogenic belt, around Gibraltar Arc, which in turn surrounds Alboran Basin. In Betic Chain, early and middle Miocene crustal thinning basement well established, as extensional low‐angle normal faults detachment faults, developed both ductile brittle conditions, thinned a previously thickened crust. Domain central Betics, two main episodes are evidenced: Langhian one, with north‐northwestward transport...
Mediterranean tectonics results in tight orogenic arcs enclosing back‐arc basins of oceanic or thinned continental lithosphere. The Gibraltar Arc cannot be explained solely by the Europe‐Africa plate convergence; therefore complementary mechanisms have been proposed. Most them imply a westward motion arc and general transpressive regime on both branches (Betic Rif chains). A structural revision made along western allows us to generate detailed kynematic map introduce new constraints possible...
The tectonometamorphic evolution of the Alpujarride Complex within internal zones Betics reveals a complex structural and metamorphic succession continental collision, synmetamorphic exhumation, nappe forming in final stage rifting. A tectonic is deduced from superposition structures observed several units central together with their record. following sequence events suggested: (1)A first stacking event (D 1 ) presence pre‐S 2 high‐pressure‐low‐temperature assemblages, (2) exhumation...
Abstract The Betics and Rif cordillera constitute the northern southern segments of Gibraltar arc. Two different fold-and-thrust belts, deriving from South Iberian Maghrebian paleomargins respectively, developed in front this orogenic system. By contrast, Flysch Trough units overlying Alboran crustal domain (internal zones), which are situated uppermost part wedge, common to both branches Flyschs an inactive accretionary prism, derived a deep elongated trough. From three large-scale profiles...
Extremely tight arcs, framed within the Eurasia-Africa convergence region, developed during Neogene on both sides of western Mediterranean. A complex interplate deformation zone has been invoked to explain their structural trend-line patterns, shortening directions and development back-arc basins. Updated kinematic maps, combined with earthquake data covering complete hinge Gibraltar arc help us explore mode strain partitioning from 25My ago present. During Miocene, pattern showed...
The long-term Pressure-Temperature-time-deformation ( P-T-t-d ) evolution of the internal zones orogens results from complex interactions between subducting lithosphere, overriding plate and intervening asthenosphere. 2-D numerical models successfully reproduce natural P-T-t - d paths, but most are non-cylindrical situation is far more due to 3-D pre-orogenic inheritance subduction dynamics. Mediterranean intrinsically non-cylindrical. Their geometry shape Eurasian African margins before...
Research Article| October 01, 1995 A stable and 40Ar/39Ar isotope study of a major thrust in the Helvetic nappes (Swiss Alps): Evidence for fluid flow constraints on nappe kinematics Anne Crespo-Blanc; Crespo-Blanc 1Instituts de Géologie et Minéralogie, Université Lausanne, BFSH-2, CH-1015 Switzerland Search other works by this author on: GSW Google Scholar Henri Masson; Masson Zachary Sharp; Sharp Michael Cosca; Cosca Johannes Hunziker Author Article Information Publisher: Geological...
Within the Betic‐Rif orogenic system, Flysch Trough units are formed mainly by siliciclastic rocks, upper Jurassic to lower Miocene in age. In Gibraltar Arc area, they presently deformed as an accretionary prism, sandwiched between fold‐and‐thrust belt derived from South Iberian paleomargin sedimentary series and metamorphic rocks of Alboran Domain, on top. northern branch Arc, main tectonic unit Complex is Aljibe unit, which shows a well‐organized structure thrust imbricates, post...
Abstract The Betic‐Rif orogen is a key region to understand the evolution of plate boundary between Africa and Iberia/Europe. This study focuses on Flysch Complex, which considered sedimentary cover domain originally positioned Iberian Alboran margins. Based stratigraphic depositional constraints, evidence for salt tectonics, combined with new apatite fission‐tracks (AFT) (U‐Th‐Sm)/He ages from Complex Subbetic Zone, we propose geodynamic interpretation formation Betic Cordillera, accounting...
The Subbetic units consist of a deformed wedge sedimentary rocks deriving from the South Iberian palaeomargin, in westernmost segment Alpine–Mediterranean orogenic belt. In central Betics, shortening produced folding, thrusting and nappe-stacking. structural trend is NE–SW to ENE–WSW, internal structure thrust sheets, which shows no preferred vergence, strongly controlled by rheology décollement level, viscous layer Triassic evaporites, overlying carbonate rock sequence. relationships...