Imaging Subduction Zones
Date: 4/25/2019
Time: 1:45 PM to 5:15 PM
Room: Cascade II
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)
Oral Presentations
| Participant Role | Details | Start Time | Minutes | Action |
|---|---|---|---|---|
| Submission | Significant Bulk Attenuation in the Tonga-Lau Mantle Wedge | 01:45 PM | 15 | View |
| Submission | Autocorrelation Reflectivity Imaging of the Magmatic Plumbing System Under Mount St. Helens | 02:00 PM | 15 | View |
| Submission | Insights Into the Transitions in the Banda Arc-Australian Continental Collision From Seismic Imaging of Deep Slab Structures | 02:15 PM | 15 | View |
| Submission | Seismic Evidence of Mantle Wedge Controls on Volcano Distribution along Aleutian-Alaska | 02:30 PM | 15 | View |
| Submission | Lithospheric Structure of the Pampean Flat Slab Region From Double-Difference Tomography | 02:45 PM | 15 | View |
| Other Time | Posters and Break | 03:00 PM | 60 | |
| Submission | Three Dimensional Seismic Velocity Structure Beneath Japanese Islands From Sea of Japan to Pacific Ocean Including NIED S-Net Data | 04:00 PM | 15 | View |
| Submission | Searching for the Deep Roots of Arc Volcanoes: Results From IMUSH Seismic Imaging in the Washington Cascades | 04:15 PM | 15 | View |
| Submission | Investigating Anomalous Crustal Thickness of the Subducting Iquique Ridge | 04:30 PM | 15 | View |
| Submission | Synthesis of Results From a Dense Nodal Geophone Array Deployed Along the Cascadia Subduction Zone | 04:45 PM | 15 | View |
| Submission | Seismic Attenuation Structure of Nazca Plate Subduction Zone in Southern Peru | 05:00 PM | 15 | View |
| Total: | 210 Minute(s) |
Imaging Subduction Zones
Description