title: 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 degrees to 900 degrees 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.
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany. d.dobson@ucl.ac.uk
authors.forename: David P
authors.initials: DP
authors.lastname: Dobson
authors.forename: Philip G
authors.initials: PG
authors.lastname: Meredith
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Boon