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Imaging Subduction Zones [Poster]

Date: 4/25/2019

Time: 6:00 PM to 11:00 PM

Room: Grand Ballroom

Subduction zones host most of the deep earthquakes on Earth. The dynamic processes within subduction zones create volcanic arcs, control the global volatile cycle that impacts the climate and lead to orogeny that is responsible for the rise of mountains, e.g., the Andes mountains along the Andean subduction zone. Although there have been tremendous advances in imaging subduction zones (especially in Japan and Cascadia) with increasing seismic data coverage and improved imaging theory and methods, it is still very challenging to obtain consistent 3D high-resolution seismic images of these systems. Such high-resolution images are critical in definitively answering questions such as how volatiles are recycled, what are the pathways of melt migration and whether or not serpentine exists in the “cold nose” of the mantle wedge or the cold core of the slab mantle. The goal of this session is to motivate discussion on the current state of subduction zone imaging with a special focus placed on new seismic array deployments (e.g., OBS) and advanced seismic imaging methods (e.g., ambient noise tomography, migration imaging and full waveform inversion) that can explore and fully utilize big seismic data sets to better image subduction zones. We welcome and encourage research topics on robust imaging method development and applications and image interpretations of global subduction zones.

Conveners

Min Chen, Michigan State University (chenmi22@msu.edu)
Eric D. Kiser, University of Arizona (ekiser@email.arizona.edu)
Zhongwen Zhan, Caltech (zwzhan@caltech.edu)

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