Publication |
B 142 |
Citation |
Gavillot, Y., Lonn, J., Stickney, M., and Hidy, A., 2023, Quaternary slip rates and most recent surface rupture of the Bitterroot fault, western Montana: Montana Bureau of Mines and Geology Bulletin 142, 44 p.
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DOI |
https://doi.org/10.59691/VZPP8697
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Price |
$ 12.00
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Document Version |
Final
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Document Status |
Print on Demand
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Description |
We present new detailed mapping using lidar with measurements of deformation and in situ age data (CRN 10Be) to constrain Pleistocene-early Holocene fault slip rates of the Bitterroot fault. Our study area is located in the Southern Bitterroot near Lake Como. Improved knowledge of the fault slip rates provides new constraints on the characterization of the late Quaternary fault history and earthquake potential. Our results support ongoing efforts to update geological parameters and improve regional deformation models used in the NSHM and USGS Quaternary Fault and Fold Database in the Intermountain West, as well as local earthquake hazards assessment for the Missoula-Bitterroot valleys and its infrastructures.
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Subject(s) |
BITTERROOT FAULT, SLIP RATES, HAZARDS, MAP, QUATERNARY, FAULT SCARPS, EARTHQUAKE POTENTIAL, BITTERROOT VALLEY, LAKE COMO, WESTERN MONTANA, EARTHQUAKES, FAULTS
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Geographic Area/Counties |
RAVALLI
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