Horizontal subduction and truncation of the Cocos Plate beneath central Mexico

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

26

Seismology: Subduction Zones (1207, 1219, 1240), Seismology: Tomography (6982, 8180), Tectonophysics: Dynamics: Seismotectonics, Tectonophysics: Subduction Zone Processes (1031, 3060, 3613, 8413)

Scientific paper

Based on analysis of data from a trans-Mexico temporary broadband seismic network centered on Mexico City, we report that the subducting Cocos Plate beneath central Mexico is horizontal, and tectonically underplates the base of the crust for a distance of 250 km from the trench. It is decoupled from the crust by a very thin low viscosity zone. The plate plunges into the mantle near Mexico City but is truncated at a depth of 500 km, probably due to an E-W propagating tear in the Cocos slab. Unlike the shallow slab subduction in Peru and Chile, there is active volcanism along the Trans Mexican Volcanic Belt (TMVB) that lies much further inland than regions to either side where subduction dip is not horizontal. Geodynamical modeling indicates that a thin weak layer such as imaged by the seismic experiment can explain the flat subduction geometry.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Horizontal subduction and truncation of the Cocos Plate beneath central Mexico does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Horizontal subduction and truncation of the Cocos Plate beneath central Mexico, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Horizontal subduction and truncation of the Cocos Plate beneath central Mexico will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1334572

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.