Search Results - "Becel, Anne"
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Forearc seismogenesis in a weakly coupled subduction zone influenced by slab mantle fluids
Published in Nature geoscience (01-09-2023)“…The role of fluids in earthquake rupture is key to understanding seismic hazards, particularly at subduction zones. The Shumagin Gap, Alaska, is notable due to…”
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The role of mantle melts in the transition from rifting to seafloor spreading offshore eastern North America
Published in Earth and planetary science letters (01-11-2019)“…The Eastern North American Margin (ENAM) formed in the early Jurassic (∼195 Ma) with the breakup of supercontinent Pangea. This rifting event was accompanied…”
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3
Upper Plate Structure and Megathrust Properties in the Shumagin Gap Near the July 2020 M7.8 Simeonof Event
Published in Geophysical research letters (28-01-2022)“…Subduction zone architecture and properties are thought to control megathrust slip behavior, but few constraints on crustal structure and megathrust properties…”
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4
P‐ and S‐Wave Velocities of Exhumed Metasediments From the Alaskan Subduction Zone: Implications for the In Situ Conditions Along the Megathrust
Published in Geophysical research letters (28-10-2021)“…The in situ state and properties of sediments entrained along subduction megathrusts exert key controls on their mechanics and slip behavior. Low seismic…”
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5
Controls on Bending‐Related Faulting Offshore of the Alaska Peninsula
Published in Geochemistry, geophysics, geosystems : G3 (01-03-2024)“…Oceanic plates experience extensive normal faulting as they bend and subduct, enabling fracturing of the incoming lithosphere. Debate remains about the…”
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Origin of dipping structures in fast-spreading oceanic lower crust offshore Alaska imaged by multichannel seismic data
Published in Earth and planetary science letters (15-08-2015)“…Multi-channel seismic (MCS) reflection profiles across the Pacific Plate south of the Alaska Peninsula reveal the internal structure of mature oceanic crust…”
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Extensional forearc structures at the transition from Alaska to Aleutian Subduction Zone: slip partitioning, terranes and large earthquakes
Published in Comptes rendus. Geoscience (01-01-2024)“…The Unimak and Shumagin segments of the Alaska Aleutian Subduction Zone show extensional deformation of the forearc since the Miocene. Using legacy seismic…”
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Geomechanical model of the Marmara Sea region—I. 3‐D contemporary kinematics
Published in Geophysical journal international (01-06-2011)“…SUMMARY We investigate by means of a 3‐D geomechanical model the relationship between structural elements and contemporary kinematics in the Marmara Sea…”
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9
Tsunamigenic structures in a creeping section of the Alaska subduction zone
Published in Nature geoscience (01-08-2017)“…Segments of subduction zones that are capable of generating tsunamigenic earthquakes appear to have characteristic structural configurations. These structures…”
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10
Evidence of Strong Upper Oceanic Crustal Hydration Outboard the Alaskan and Sumatran Subduction Zones
Published in Journal of geophysical research. Solid earth (01-10-2022)“…The hydration state of subducting oceanic crust has been proposed to influence subduction zone processes like seismic coupling at the megathrust interface and…”
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11
Episodic intraplate magmatism fed by a long-lived melt channel of distal plume origin
Published in Science advances (09-06-2023)“…In the past decade, marine geophysical observations have led to the discovery of thin channels at the base of oceanic plates with anomalous physical properties…”
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Downdip variations in seismic reflection character: Implications for fault structure and seismogenic behavior in the Alaska subduction zone
Published in Journal of geophysical research. Solid earth (01-11-2015)“…Seismic reflection data collected offshore of Alaska Peninsula across the western edge of the Semidi segment show distinctive variations in reflection…”
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13
Evidence for a Prolonged Continental Breakup Resulting From Slow Extension Rates at the Eastern North American Volcanic Rifted Margin
Published in Journal of geophysical research. Solid earth (01-09-2020)“…When continental rifting is accompanied by localized magmatism under extensional stress, the breakup duration can be short and the continent/ocean transition…”
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14
North Marmara Trough architecture of basin infill, basement and faults, from PSDM reflection and OBS refraction seismics
Published in Tectonophysics (15-07-2010)“…The reflection and refraction seismic data collected during the SEISMARMARA Leg 1 survey in the Sea of Marmara provide detailed imaging of sedimentary record…”
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15
A first deep seismic survey in the Sea of Marmara: Deep basins and whole crust architecture and evolution
Published in Earth and planetary science letters (30-06-2008)“…Increased source strength, streamer length and dense spatial coverage of seismic reflection profiles of the SEISMARMARA Leg 1 allow to image the deep structure…”
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Searching for unconventional seismic signals on a subduction zone with a submerged forearc: OBS offshore the Lesser Antilles
Published in Tectonophysics (09-09-2013)“…Detecting unconventional seismic signals related to subduction zone processes at depth in continuous ocean bottom seismometer (OBS) records requires the…”
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Link between plate fabric, hydration and subduction zone seismicity in Alaska
Published in Nature geoscience (01-12-2015)“…Subduction carries water into the Earth where it can influence seismicity. Analysis of the structure of the Alaskan subduction zone suggests fluid delivery is…”
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Moho, crustal architecture and deep deformation under the North Marmara Trough, from the SEISMARMARA Leg 1 offshore–onshore reflection–refraction survey
Published in Tectonophysics (01-03-2009)“…Understanding further the nature and evolution at lithospheric scale of the Sea of Marmara on the North Anatolian Fault needs constraints on the deep crustal…”
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Structure of the Lesser Antilles subduction forearc and backstop from 3D seismic refraction tomography
Published in Tectonophysics (09-09-2013)“…In 2007 the Sismantilles II experiment was conducted to constrain structure and seismicity in the central Lesser Antilles subduction zone. The seismic…”
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Along-arc segmentation and interaction of subducting ridges with the Lesser Antilles Subduction forearc crust revealed by MCS imaging
Published in Tectonophysics (09-09-2013)“…We present the results from a new grid of deep penetration multichannel seismic (MCS) profiles over the 280-km-long north-central segment of the Lesser…”
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