The rock record of ancient earthquakes can be used to understand the seismic source region, earthquake generating processes, and strength of faults and shear zones. Understanding seismic and geodetic signals of tectonic deformation requires an understanding of deformation mechanisms at depth, which can be provided by field and microstructural study of ancient exhumed faults and shear zones. In this talk I’ll show a lot of different studies of exhumed faults and show how we identify earthquake-generating structures and what we learn from them.
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