Dehydration of lawsonite could directly trigger earthquakes in subducting oceanic crust

Keishi Okazaki () and Greg Hirth
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Keishi Okazaki: Environmental, and Planetary Sciences, Brown University, 324 Brook Street Box 1846, Providence, Rhode Island 02906, USA
Greg Hirth: Environmental, and Planetary Sciences, Brown University, 324 Brook Street Box 1846, Providence, Rhode Island 02906, USA

Nature, 2016, vol. 530, issue 7588, 81-84

Abstract: Deformation experiments on lawsonite reveal that unstable fault slip occurs during dehydration reactions with continuous acoustic emission signals; this indicates the potential for unstable frictional sliding in natural lawsonite layers, which could possibly be the source of intermediate-depth earthquakes in cold subduction zones.

Date: 2016
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DOI: 10.1038/nature16501

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