Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin)
Bartolomé, Rafael ... et al.-- Special issue Geodynamics of the Latin American Pacific Margin.-- 20 pages, 11 figures
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2016-06
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| Subjects: | Jalisco Block, Mexico, Rivera Plate, Crustal structure, Seismic imaging, Subduction, Earthquake, Tsunami, BSR, Gas hydrate, Trench infill, |
| Online Access: | http://hdl.handle.net/10261/134257 http://dx.doi.org/10.13039/501100005739 http://dx.doi.org/10.13039/501100003141 http://dx.doi.org/10.13039/501100003329 |
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dig-icm-es-10261-1342572020-12-10T11:51:42Z Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) Bartolomé, Rafael Dañobeitia, Juan José Martí, David Cameselle, Alejandra L. Castellón, Arturo Alonso Martín, José Luis Universidad Nacional Autónoma de México Consejo Nacional de Ciencia y Tecnología (México) Ministerio de Economía y Competitividad (España) Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill Bartolomé, Rafael ... et al.-- Special issue Geodynamics of the Latin American Pacific Margin.-- 20 pages, 11 figures During the TSUJAL marine geophysical survey, conducted in February and March 2014, Spanish, Mexican and British scientists and technicians explored the western margin of Mexico, considered one of the most active seismic zones in America. This work aims to characterize the internal structure of the subduction zone of the Rivera plate beneath the North American plate in the offshore part of the Jalisco Block, to link the geodynamic and the recent tectonic deformation occurring there with the possible generation of tsunamis and earthquakes. For this purpose, it has been carried out acquisition, processing and geological interpretation of a multichannel seismic reflection profile running perpendicular to the margin. Crustal images show an oceanic domain, dominated by subduction–accretion along the lower slope of the margin with a subparallel sediment thickness of up to 1.6 s two-way travel time (approx. 2 km) in the Middle American Trench. Further, from these data the region appears to be prone to giant earthquake production. The top of the oceanic crust (intraplate reflector) is very well imaged. It is almost continuous along the profile with a gentle dip (<10°); however, it is disrupted by normal faulting resulting from the bending of the plate during subduction. The continental crust presents a well-developed accretionary prism consisting of highly deformed sediments with prominent slumping towards the trench that may be the result of past tsunamis. Also, a bottom simulating reflector (BSR) is identified in the first half a second (twtt) of the section. High amplitude reflections at around 7–8 s twtt clearly image a discontinuous Moho, defining a very gentle dipping subduction plane We gratefully acknowledge financial support from MINECO (Spain) through TSUJAL project (CGL2011-29474-C02-01) and “Ramon y Cajal” program (R. Bartolome), and from Mexico through CONACYT–FOMIXJAL 2008–96567 (2009); CONACYT–FOMIXJAL 2008–96539 (2009); CONACYT–FOMIXJAL 2010–149245 (2011); CONACyT-FOMIXJal (2012-08-189963) and also partial funding was provided by UNAM DGAPA Grant #IN115513-3 Peer Reviewed 2016-06-30T08:21:24Z 2016-06-30T08:21:24Z 2016-06 2016-06-30T08:21:24Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1007/s00024-016-1331-y issn: 0033-4553 e-issn: 1420-9136 Pure and Applied Geophysics 173(10): 3575-3594 (2016) http://hdl.handle.net/10261/134257 10.1007/s00024-016-1331-y http://dx.doi.org/10.13039/501100005739 http://dx.doi.org/10.13039/501100003141 http://dx.doi.org/10.13039/501100003329 Publisher's version https://doi.org/10.1007/s00024-016-1331-y Sí open Springer |
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| topic |
Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill |
| spellingShingle |
Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill Bartolomé, Rafael Dañobeitia, Juan José Martí, David Cameselle, Alejandra L. Castellón, Arturo Alonso Martín, José Luis Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| description |
Bartolomé, Rafael ... et al.-- Special issue Geodynamics of the Latin American Pacific Margin.-- 20 pages, 11 figures |
| author2 |
Universidad Nacional Autónoma de México |
| author_facet |
Universidad Nacional Autónoma de México Bartolomé, Rafael Dañobeitia, Juan José Martí, David Cameselle, Alejandra L. Castellón, Arturo Alonso Martín, José Luis |
| format |
artículo |
| topic_facet |
Jalisco Block Mexico Rivera Plate Crustal structure Seismic imaging Subduction Earthquake Tsunami BSR Gas hydrate Trench infill |
| author |
Bartolomé, Rafael Dañobeitia, Juan José Martí, David Cameselle, Alejandra L. Castellón, Arturo Alonso Martín, José Luis |
| author_sort |
Bartolomé, Rafael |
| title |
Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| title_short |
Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| title_full |
Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| title_fullStr |
Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| title_full_unstemmed |
Multichannel Seismic Imaging of the Rivera Plate Subduction at the Seismogenic Jalisco Block Area (Western Mexican Margin) |
| title_sort |
multichannel seismic imaging of the rivera plate subduction at the seismogenic jalisco block area (western mexican margin) |
| publisher |
Springer |
| publishDate |
2016-06 |
| url |
http://hdl.handle.net/10261/134257 http://dx.doi.org/10.13039/501100005739 http://dx.doi.org/10.13039/501100003141 http://dx.doi.org/10.13039/501100003329 |
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