Garnet fracturing reveals ancient unstable slip events hosted in plate interface metasediments
Samuel Angiboust,
P. Io Ioannidi,
Iskander Muldashev
Abstract:A paradox exists between the great number of intermediate-depth earthquakes occurring along active subduction interfaces worldwide and the extreme scarcity of paleo-seismic events recorded in exhumed metasedimentary rocks from ancient subduction zones. Recrystallization, shearing as well as exhumation-related overprinting generally contribute to the nearly-complete erasing of markers of unstable slip events in metamorphic rocks. We herein focus on a sample from an ancient deep thrust from a Cretaceous High-Pre… Show more
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