Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data
16TH SEISMIX International Symposium on Multi-scale Seismic Imaging of the Earth's crust and Upper Mantle, 12-17 October 2014, Castelldefels, Barcelona.-- 1 page
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dig-icm-es-10261-1150292020-05-29T11:09:37Z Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data Bartolomé, Rafael Córdoba, Diego Nuñez-Cornu, Francisco Dañobeitia, Juan José Cameselle, Alejandra L. Prada, Manel TSUJAL Working Group 16TH SEISMIX International Symposium on Multi-scale Seismic Imaging of the Earth's crust and Upper Mantle, 12-17 October 2014, Castelldefels, Barcelona.-- 1 page During the spring of 2014, scientists explored the western Pacific margin of Mexico through a dense marine geophysical sampling of the Rivera, Cocos and North American plates, named TSUJAL. We used for the first time 6 km length streamer of the Spanish RV Sarmiento de Gamboa seismic equipment onboard the British RRS James Cook, a barter (OFEG) European exchange opportunity between NERC and CSIC, to obtain deep multichannel across the Rivera Plate. MCS data was acquired using 4 airgun array (12 BOLT guns) towed at 8m depth having fired around 27000 air-gun shots every 50 m, and 5.85 km long Sercel SEAL streamer, 12.5 m group distance (468 channels) towed at 10 m depth. Seismic source ranges from 5800 c.i. to 3540 c.i. depending on the profile. Nine profiles of wide angle seismic have been acquired as well, coincident with MCS data, in order to investigate the structure and nature of the lithosphere. A total of 970 km have been sounded at sea with the help of 16 OBS from the UTM-CSIC pool deployed two times during the survey, and 100 land stations. Wide angle seismic source ranges from 11 to 14 airguns BOLT totalizing between 6800-8000 c.i., working at 15 m depth and fired every 120 s. Simultaneously with the seismic survey, 5438 km of swath-bathymetry, acoustic backscatter, sub-bottom profiler, gravity and magnetics data were acquired providing complementary information of the seafloor morphology, sub-seafloor deformation and crustal structure. A strong understanding of the Mexico subduction region unravelling the subduction geometry, nature of the crust, faults, mass wasting, rupture width, etc. is required to carry out seismic hazard studies. These parameters are critical for assessing the seismic hazard models of Mexico, especially when considering large-magnitude earthquakes (Mw 8.0), and to constrain tsunami models Peer reviewed 2014-10-16 comunicación de congreso http://purl.org/coar/resource_type/c_5794 16TH SEISMIX International Symposium on Multi-scale Seismic Imaging of the Earth's crust and Upper Mantle. Abstracts: 78 (2014) http://hdl.handle.net/10261/115029 en http://www.iplusdinnova.com/es/conference/16th-seismix-international-symposium Sí none |
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16TH SEISMIX International Symposium on Multi-scale Seismic Imaging of the Earth's crust and Upper Mantle, 12-17 October 2014, Castelldefels, Barcelona.-- 1 page |
| format |
comunicación de congreso |
| author |
Bartolomé, Rafael Córdoba, Diego Nuñez-Cornu, Francisco Dañobeitia, Juan José Cameselle, Alejandra L. Prada, Manel TSUJAL Working Group |
| spellingShingle |
Bartolomé, Rafael Córdoba, Diego Nuñez-Cornu, Francisco Dañobeitia, Juan José Cameselle, Alejandra L. Prada, Manel TSUJAL Working Group Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| author_facet |
Bartolomé, Rafael Córdoba, Diego Nuñez-Cornu, Francisco Dañobeitia, Juan José Cameselle, Alejandra L. Prada, Manel TSUJAL Working Group |
| author_sort |
Bartolomé, Rafael |
| title |
Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| title_short |
Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| title_full |
Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| title_fullStr |
Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| title_full_unstemmed |
Crustal characterization and imaging of the Rivera Plate, Western Mexican Margin (TSUJAL project): insights from multichannel and wide-angle seismic data |
| title_sort |
crustal characterization and imaging of the rivera plate, western mexican margin (tsujal project): insights from multichannel and wide-angle seismic data |
| url |
http://hdl.handle.net/10261/115029 |
| work_keys_str_mv |
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