A5053893689- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Geological and Geophysical Studies
- High-pressure geophysics and materials
- Geological and Tectonic Studies in Latin America
- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geological and Geophysical Studies Worldwide
- Seismology and Earthquake Studies
- Geological Studies and Exploration
- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Reservoir Engineering and Simulation Methods
- Geomagnetism and Paleomagnetism Studies
- Geochemistry and Geologic Mapping
- Geological Modeling and Analysis
- Evolution and Paleontology Studies
- Marine and environmental studies
- Drilling and Well Engineering
- Geotechnical and Geomechanical Engineering
- Geophysics and Gravity Measurements
- Archaeology and ancient environmental studies
Géosciences Montpellier
2015-2025
Centre National de la Recherche Scientifique
2015-2025
Université de Montpellier
2015-2025
Université des Antilles
2021
Interface (United States)
2016
Associated Research (United States)
2012
Institut des Sciences de la Terre
1995-2001
Institut de Recherche pour le Développement
1995
Sorbonne Université
1989-1992
Unité de Glycobiologie Structurale et Fonctionnelle
1992
Statistical analysis of modern oceanic subduction zone parameters, such as the age a downgoing plate or absolute motions, is performed in order to investigate which parameter controls dip slab and, conversely, what influence geometry on upper behavior. For that purpose, parameters have been determined from global databases along 159 transects all zones are not perturbed by nearby collision ridge/plateau/seamount subduction. On basis tomographic images, slabs penetrate through, lie on, 670 km...
Research Article| June 01, 1990 Tectonic erosion along the Japan and Peru convergent margins R. VON HUENE; HUENE 1U.S. Geological Survey, M.S. 999, 345 Middlefield Road Menlo Park, California 940252GEOMAR, Kiel, West Germany Search for other works by this author on: GSW Google Scholar S. LALLEMAND 3Université Pierre et Marie Curie, Paris, France GSA Bulletin (1990) 102 (6): 704–720. https://doi.org/10.1130/0016-7606(1990)102<0704:TEATJA>2.3.CO;2 Article history first online: 01 Jun 2017...
The Okinawa Trough, lying between Japan and Taiwan, is a backarc basin formed by extension within the continental lithosphere behind Ryukyu trench‐arc system. Stress directions associated with two last extensional phases in southwestern Trough have been deduced from comparison analog modeling: direction of N150° for Pleistocene phase (2–0.1 Ma) N170° late Pleistocene‐Holocene (0.1–0 Ma). present‐day volcanic arc, narrow continuous feature extending to located on eastern side 80–100 km above...
Based on observations from both modem convergent margins and sandbox modeling, we examine the possible conditions favoring frontal accretion and/or basal tectonic erosion. Mean characteristic parameters (μ, μ* b λ) are used to discuss mechanical stability of 28 transects across part where Coulomb theory is applicable. Natural reveal that “typical accretionary wedges” characterized by low tapers with smooth surface slope subducting plate, convergence rates thick trench sediment, while...
Sandbox experiments, using a two‐dimensional and three‐dimensional approach, are used to study the deformation of margins in response seamount subduction. Successive mechanisms activated during subduction conical seamounts. First, reactivation frontal thrusts compaction accretionary wedge is observed. Then, back thrusting and, conjugate strike‐slip faulting develops above leading slope subducted seamount. The basal decollement deflected upward wake subducting high, large shadow zone behind...
1] Based on global earthquake catalogs, the hypocenters, nodal planes, and seismic moments of worldwide subduction plate interface earthquakes were extracted for period between 1900 2007.Assuming that seismogenic zone coincides with distribution 5.5 ≤ M < 7 earthquakes, zones mapped 80% trench systems characterized geometrical mechanical parameters.Using this database, correlations isolated significant parameters to identify cause-effect relationships.Empirical laws obtained in previous...
Based on geological and geophysical data collected from the West Philippine Basin its boundaries, we propose a comprehensive Cenozoic history of basin. Our model shows that it is back arc basin developed between two opposed subduction zones. Rifting started around 55 Ma spreading ended at 33/30 Ma. The initial axis was parallel to paleo‐Philippine Arc but became inactive when new ridge propagated eastern part basin, reaching former one an R‐R‐R triple junction. Spreading occurred mainly this...
Despite convergent margins being unstable systems, most reports of huge submarine slope failure have come from oceanic volcanoes and passive margins. Swath bathymetry seismic profiles the northern Hikurangi subduction system, New Zealand, show a tapering 65–30 km wide by 65 deep margin indentation, with giant, 3150±630 3 , blocky, debris avalanche deposit projecting 40 out across horizontal trench fill, flow over 100 km. Slide blocks are well‐bedded, up to 18 1.2 high, largest at deposit's...
Giant earthquake (moment magnitude M w ≥ 8.5) forecasts for subduction zones have been empirically related to both tectonic stresses and geometrical irregularities along the interface. Both of these controls suggested as able tune ability rupture propagate laterally and, in turn, exert an important control on giant generation. Here we test hypotheses, their combined influence, by compiling a dataset trench fill thickness (a proxy smoothing subducting plate relief sediment input into channel)...
New estimates of trench migration rates allow us to address the dynamics and back‐arc strain. We show that is primarily controlled by subducting plate velocity V sub , which largely depends on its age at trench. Using hot weak arc region as a strain sensor, we define neutral arcs characterized absence significant strain, meaning places where forces (slab pull, bending, anchoring) almost balance along interface between plates. subduction zones satisfy kinematic relation absolute motions: t =...
Abstract Despite the growing spatiotemporal density of geophysical observations at subduction zones, predicting timing and size future earthquakes remains a challenge. Here we simulate multiple seismic cycles in laboratory‐scale zone. The model creates both partial full margin ruptures, simulating magnitude M w 6.2–8.3 with coefficient variation recurrence intervals 0.5, similar to real zones. We show that common procedure estimating next earthquake from slip‐deficit is unreliable. On...
We compiled the most relevant data acquired throughout Philippine Sea Plate (PSP) from early expeditions to recent. also analyzed various explanatory models in light of this updated dataset. The following main conclusions are discussed study. (1) Izanagi slab detachment beneath East Asia margin around 60–55 Ma likely triggered Oki-Daito plume occurrence, Mesozoic proto-PSP splitting, shortening and then failure across paleo-transform boundary between Pacific Plate, Izu-Bonin-Mariana...
Research Article| February 01, 1996 Cyclical behavior of thrust wedges: Insights from high basal friction sandbox experiments Marc-André Gutscher; Gutscher 1GEOMAR, Center for Marine Geosciences, University Kiel, Wischhofstrasse 1-3, D-24148, Germany Search other works by this author on: GSW Google Scholar Nina Kukowski; Kukowski Jacques Malavieille; Malavieille 2ISTEEM, Laboratoire de Géophysique et Tectonique, URA CNRS 1760, Montpellier II, Montpellier, France Serge Lallemand Author and...
The maximum intersection (MAXI) method, which derives from the master station method (MSM), determines within a 3-D velocity model absolute hypocentral location based on observed arrival times. First, spatial node that better satisfies time differences computed at all pairs, plus or minus an error tolerance value (in seconds), is defined as preliminary solution (PRED). Second, because PRED depends neither estimate of origin nor residual root mean square (rms), outliers are objectively...