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Data from the manuscript: Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults

Dates

Publication Date
Start Date
2017
End Date
2019

Citation

Proctor, B., Lockner, D.A., Kilgore, B.D., Mitchell, T.M., and Beeler, N.M., 2020, Data from the manuscript: Direct evidence for fluid pressure, dilatancy, and compaction affecting slip in isolated faults: U.S. Geological Survey data release, https://doi.org/10.5066/P98U3DZX.

Summary

Earthquake instability occurs as a result of strength loss during sliding on a fault. It has been known for over 50 years that fault compaction or dilatancy may cause significant weakening or strengthening by dramatically changing the fluid pressure trapped in faults. Despite this fundamental importance, we have no real understanding of the exact conditions that lead to compaction or dilation during nucleation or rupture. To date, no direct measurements of pore pressure changes during slip in hydraulically isolated faults have been reported. We show direct examples of fluid pressure variations during nucleation and rupture using a miniature pressure transducer embedded in an experimental fault. We demonstrate that fluids are not only [...]

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Attached Files

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Data_Archive_Direct_evidence_for_fault_fluid_pressure_dilatancy.zip 386.38 KB application/zip

Purpose

Data were collected to study the nature of the influence of fluid pressure within a fault zone, and its impact on fault stability.

Map

Communities

  • USGS Data Release Products

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Provenance

This data was generated by the authors during laboratory experiments at the US Geological Survey Rock Physics Lab in Menlo Park, CA

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P98U3DZX

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