A5010533041- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geological and Geophysical Studies Worldwide
- Geology and Paleoclimatology Research
- Geological formations and processes
- Geological Studies and Exploration
- Methane Hydrates and Related Phenomena
- Marine and environmental studies
- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Maritime and Coastal Archaeology
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Island Studies and Pacific Affairs
- Archaeological and Historical Studies
- Geophysics and Gravity Measurements
- Geological Formations and Processes Exploration
- Ancient Mediterranean Archaeology and History
- Geochemistry and Geologic Mapping
- Geological and Tectonic Studies in Latin America
- Drilling and Well Engineering
- GNSS positioning and interference
- Geological Modeling and Analysis
Laboratoire de Géologie de l’École Normale Supérieure
2015-2024
Centre National de la Recherche Scientifique
2015-2024
Université Paris Sciences et Lettres
2015-2024
Laboratoire de Physique de l'ENS
2012-2023
École Normale Supérieure - PSL
2011-2021
Laboratoire de Géographie Physique
1997
Collège de France
1996
The University of Tokyo
1989
We use a new satellite laser ranging/Global Positioning System (SLR/GPS) solution at seven sites in Anatolia and Aegea to obtain better definition of the extrusion motion Anatolian‐Aegean block with respect Europe. show that this can be described first approximation by counterclockwise rotation which transfers most Arabia Anatolia. combine 78 displacement vectors obtained common points two triangulation nets measured central Greece 1895 1975 SLR/GPS measurements compute velocity field over...
We perform a joint inversion of Quaternary strain rates and 238 Global Positioning System (GPS) velocities in Asia for self‐consistent velocity field. The reference frames all geodetic observations are determined our procedure. India (IN) moves relative to Eurasia (EU) about pole rotation at (29.78°N, 7.51°E, 0.353° Myr −1 ), which yields along the Himalaya within that is ∼73–76% magnitude IN‐EU NUVEL‐1A vector azimuth 8–10° clockwise azimuth. Relative Eurasia, south China 9–11 mm/yr...
Using a regional GPS data set including ∼190 stations in Asia, from Nepal to eastern Indonesia and spanning 11 years, we update the present‐day relative motion between Indian Sundaland plates discuss deformation taking place them Myanmar. Revisiting measurements acquired on Main Boundary Thrust Nepal, it appears that points southern exhibit negligible with respect mainland India. Including these points, using longer time span than previous studies, making an accurate geodetic mapping newest...
Global Positioning System (GPS) measurement campaigns in Myanmar, conducted 1998 and 2000, allow quantifying the present‐day crustal deformation around Sagaing fault system central Myanmar. Both a regional network installed at four points within country local 18‐station centered on city of Mandalay across demonstrate that active related to northward motion India is distributed Myanmar platelet extends from western edge Shan Plateau east Andaman Trench west. In this platelet, rather diffuse...
Using the detailed geometry and tectonics of Main Marmara fault that connects Gulf Izmit with Ganos established by Le Pichon et al. [2001] new GPS data set recently analyzed Meade [2002] , we confirm existence a block delimited to north northern branch North Anatolian (the branch) south southern branch. The kinematics this indicate crosses Sea is close pure dextral strike slip at rate 23 mm/yr on its whole length. short Cinarcik section only one where significant extensional component...
The western boundary of the Philippine Sea (PH) Plate in Philippines and eastern Indonesia corresponds to a wide deformation zone that includes stretched continental margin Sundaland, Mobile Belt (PMB), extending from Luzon Molucca Sea, mosaic blocks around PH/Australia/Sunda triple junction. GPS GEODYSSEA data are used decipher present kinematics this complex area. In Philippines, overall scheme is quite simple: two opposing rotations on either side left-lateral Fault, clockwise southwest...
New results from a two-ship refraction and oblique reflection deep seismic cruise are presented to discuss the nature of crust in Ionian, Sirte Herodotus abyssal plains. These expanding spread profiles were processed analysed both x-t τ-p domains. Arrival times reflected refracted branches matched by ray tracing In spite shallow evaporitic sequence (messinian evaporites) deposited on top thick sedimentary pile responsible for velocity inversions many profiles, we obtain excellent control...
New geophysical data collected at the Aden‐Owen‐Carlsberg (AOC) triple junction between Arabia, India, and Somalia plates are combined with all available magnetic across Gulf of Aden to determine detailed Arabia‐Somalia plate kinematics over past 20 Myr. We reconstruct history opening Aden, including penetration Sheba Ridge into African continent evolution since its formation. Magnetic evidence three stages ridge propagation from east west. Seafloor spreading initiated ∼20 Myr ago along a...
We present a new kinematic and strain model of an area encompassing the Calabrian Hellenic subduction zones, western Anatolia Balkans. Using Haines Holt's (1993) method, we derive continuous velocity rate fields by interpolating geodetic velocities, including recent GPS data in Relative motion between stable Eurasia Aegean Sea is gradually accommodated distributed N‐S extension from Southern Balkans to Eastern Corinth Gulf, so that westward propagation North Anatolian Fault (NAF) throughout...
Abstract We present a new GPS velocity field covering the peri‐Adriatic tectonically active belts and entire Balkan Peninsula. From velocities, we calculate consistent strain rate interpolated fields. Significant features of crustal deformation include (1) eastward motion northern part Eastern Alps together with Alpine foreland Bohemian Massif toward Pannonian Basin, (2) shortening across Dinarides, (3) clockwise rotation Albanides‐Hellenides, (4) southward south 44°N inner lithosphere...
This study focuses on the kinematics of southern Aegean and Mediterranean Ridge (MR). A quantification deformation MR is essential for both evaluating physical models accretionary wedges in general obtaining a self-consistent model surface over entire Nubia-Eurasia (NU-EU) plate boundary zone eastern Mediterranean. Previous kinematic studies have not properly considered field south Hellenic arc. Although this MR, we also discuss Aegean, because geometry movement arc determine to large extent...
The Sichuan earthquake, Mw 7.9, struck the Longmen Shan (LMS) range front, China, on 2008 May 12, affecting an area of moderate historical seismicity where little active shortening has been previously reported. Recent studies based space geodesy have succeeded in retrieving far field surface displacements caused by but near (±25 km from faults) coseismic displacement is still poorly constrained. Thus, shallow fault geometry and slip are resolved. Here, for first time this we combine C L-band...
Research Article| November 01, 1993 Intraplate shortening in the central Indian Ocean determined from a 2100-km-long north-south deep seismic reflection profile N. Chamot-Rooke; Chamot-Rooke 1Laboratoire de Géologie, CNRS URA 1316, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris Cédex 05, France Search for other works by this author on: GSW Google Scholar F. Jestin; Jestin B. Voogd Author and Article Information Publisher: Geological Society of America First Online: 02 Jun 2017 Online...
We discuss the opening mechanism of Japan Sea in Miocene time using (1) tectonic and published paleomagnetic data along eastern margin from north Hokkaido Island to Sado Island, (2) a mechanical model which is tested by small‐scale physical modeling, (3) crustal structure bathymetric features constrain our kinematic preopening reconstructions. Our main conclusions are following. The was, as whole, dextral shear zone about 100 km wide. This conclusion supported existence ductile Central...
Active intraplate deformation of the India–Australia Plate is now being captured by far-field global positioning system (GPS) measurements as well on a few islands located within deforming zone itself. In this paper, we combine and regional geodetic solutions with focal mechanisms earthquakes to derive present-day strain field Plate. We first compile an updated catalogue 131 Indian (M > 5) spanning period between two Asian mega Assam 1897 Sumatra 2004. Using Haines Holt's numerical approach...
Creeping dislocations in an elastic half‐space are commonly used to model interseismic deformation. However, this semi‐infinite conventional can lead biased inferences of the slip rate and fault locking depth. We therefore favor use a thin‐plate sheared at its base agreement with current knowledge seismogenic thickness lithosphere. apply these two approaches interpret InSAR data across Altyn Tagh system near longitude 94°E, region clear asymmetry velocity distribution. Our results suggest...