Simulation of Subduction Zone Seismicity by Dehydration of Serpentine
Abstract
We measured acoustic emission energy during antigorite dehydration in a multianvil press from 1.5 to 8.5 gigapascals and 300° to 900°C. There was a strong acoustic emission signal on dehydration, and analysis of recovered samples revealed brittle deformation features associated with high pore-fluid pressures. These results demonstrate that intermediate depth (50 to 200 kilometers) seismicity can be generated by dehydration reactions in the subducting slab.
- Publication:
-
Science
- Pub Date:
- November 2002
- DOI:
- 10.1126/science.1075390
- Bibcode:
- 2002Sci...298.1407D
- Keywords:
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- GEOCHEM PHYS