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Fault formation in porous sedimentary rocks at high strain rates

Citation

Wendy R Key, Fault formation in porous sedimentary rocks at high strain rates: .

Summary

Previous theoretical work suggests that faults in porous sedimentary rocks subjected to high strain rates do not form from deformation band damage zones (DBDZs) as typically observed in porous rocks. This hypothesis is evaluated by an investigation of faults mapped within the porous Navajo Sandstone at the Upheaval Dome impact structure in Canyonlands National Park, southeast Utah, where high strain rate conditions are known to have occurred. We found no evidence for DBDZ formation along the fault planes at Upheaval Dome. Instead pulverized quartz grains within the Navajo Sandstone are revealed adjacent to several fault planes. This material has previously been observed and documented in association with dynamic fracturing in crystalline [...]

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Wendy R Key

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  • Upper Colorado River Basin

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From Source - Mendeley RIS export <br> On - Tue May 10 11:51:55 CDT 2011

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Title Citation Fault formation in porous sedimentary rocks at high strain rates

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