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Title: Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada

Abstract

This report summarizes the results of paleoseismic investigations at two trenches (SCR-T1 and SCR-T3) excavated across the Stagecoach Road (SCR) fault at the southeastern margin of Yucca Mountain. The results of these studies are based on detailed mapping or logging of geologic and structural relationships exposed in trench walls, combined with descriptions of lithologic units, associated soils, and fault-related deformation. The ages of trench deposits are determined directly from geochronologic dating of selected units and soils, supplemented by stratigraphic and soil correlations with other surficial deposits in the Yucca Mountain area. The time boundaries used in this report for subdivision of the Quaternary period are listed in a table. These data and interpretations are used to identify the number, amounts, timing, and approximately lengths of late to middle Quaternary (less than 200 ka) surface-faulting events associated with paleoearthquakes at the trench sites. This displacement history forms the basis for calculating paleoearthquake recurrence intervals and fault-slip rates for the Stagecoach Road fault and allows comparison with fault behavior on other Quaternary faults at or near Yucca Mountain.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
US Geological Survey, Denver, CO (United States)
Sponsoring Org.:
USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States); Geological Survey, Reston, VA (United States)
OSTI Identifier:
584904
Report Number(s):
USGS/OFR-96-417
ON: DE98004458; TRN: 98:009426
DOE Contract Number:  
AI08-92NV10874
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1998
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; YUCCA MOUNTAIN; SEISMICITY; GEOLOGIC HISTORY; GEOLOGIC FAULTS; RADIOACTIVE WASTE FACILITIES; AGE ESTIMATION; EARTHQUAKES; SLIP; EXPERIMENTAL DATA; MAPS

Citation Formats

Menges, C M, Oswald, J A, Coe, J A, Lundstrom, S C, Paces, J B, Mahan, S A, Widmann, B, and Murray, M. Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada. United States: N. p., 1998. Web. doi:10.2172/584904.
Menges, C M, Oswald, J A, Coe, J A, Lundstrom, S C, Paces, J B, Mahan, S A, Widmann, B, & Murray, M. Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada. United States. https://doi.org/10.2172/584904
Menges, C M, Oswald, J A, Coe, J A, Lundstrom, S C, Paces, J B, Mahan, S A, Widmann, B, and Murray, M. 1998. "Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada". United States. https://doi.org/10.2172/584904. https://www.osti.gov/servlets/purl/584904.
@article{osti_584904,
title = {Paleoseismic investigations of Stagecoach Road fault, southeastern Yucca Mountain, Nye County, Nevada},
author = {Menges, C M and Oswald, J A and Coe, J A and Lundstrom, S C and Paces, J B and Mahan, S A and Widmann, B and Murray, M},
abstractNote = {This report summarizes the results of paleoseismic investigations at two trenches (SCR-T1 and SCR-T3) excavated across the Stagecoach Road (SCR) fault at the southeastern margin of Yucca Mountain. The results of these studies are based on detailed mapping or logging of geologic and structural relationships exposed in trench walls, combined with descriptions of lithologic units, associated soils, and fault-related deformation. The ages of trench deposits are determined directly from geochronologic dating of selected units and soils, supplemented by stratigraphic and soil correlations with other surficial deposits in the Yucca Mountain area. The time boundaries used in this report for subdivision of the Quaternary period are listed in a table. These data and interpretations are used to identify the number, amounts, timing, and approximately lengths of late to middle Quaternary (less than 200 ka) surface-faulting events associated with paleoearthquakes at the trench sites. This displacement history forms the basis for calculating paleoearthquake recurrence intervals and fault-slip rates for the Stagecoach Road fault and allows comparison with fault behavior on other Quaternary faults at or near Yucca Mountain.},
doi = {10.2172/584904},
url = {https://www.osti.gov/biblio/584904}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Apr 01 00:00:00 EST 1998},
month = {Wed Apr 01 00:00:00 EST 1998}
}