The role of fluid pressure on frictional behavior at the base of the seismogenic zone

Geology
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Abstract

To characterize stress and deformation style at the base of the seismogenic zone, we investigate how the mechanical properties of fluid-rock systems respond to variations in temperature and strain rate. The role of fluids on the processes responsible for the brittle-ductile transition in quartz-rich rocks has not been explored at experimental conditions where the kinetic competition between microcracking and viscous flow is similar to that expected in the Earth. Our initial analysis of this competition suggests that the effective stress law for sliding friction should not work as efficiently near the brittle-ductile transition as it does at shallow conditions

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title The role of fluid pressure on frictional behavior at the base of the seismogenic zone
Series title Geology
DOI 10.1130/G36361.1
Volume 43
Issue 3
Year Published 2015
Language English
Publisher Geological Society of America
Contributing office(s) Earthquake Science Center
Description 4 p.
First page 223
Last page 226