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Title: A revised Litostragraphic Framework for the Southern Yucca Mountain Area, Nye County, Nevada

Abstract

An informal, revised lithostratigraphic framework for the southern Yucca Mountain area, Nevada has been developed to accommodate new information derived from subsurface investigations of the Nye County Early Warning Drilling Program. Lithologies penetrated by recently drilled boreholes at locations between Stagecoach Road and Highway 95 in southern Nye County include Quaternary and Pliocene alluvium and alluvial breccia, Miocene pyroclastic flow deposits and intercalated lacustrine siltstone and claystone sequences, early Miocene to Oligocene pre-volcanic sedimentary rocks, and Paleozoic strata. Of the 37 boreholes currently drilled, 21 boreholes have sufficient depth, spatial distribution, or traceable pyroclastic flow, pyroclastic fall, and reworked tuff deposits to aid in the lateral correlation of lithostrata. Medial and distal parts of regional pyroclastic flow deposits of Miocene age can be correlated with the Timber Mountain, Paintbrush, Crater Flat, and Tram Ridge Groups. Rocks intercalated between these regional pyroclastic flow deposits are substantially thicker than in the central part of Yucca Mountain, particularly near the downthrown side of major faults and along the southern extent of exposures at Yucca Mountain.

Authors:
; ;
Publication Date:
Research Org.:
Yucca Mountain Project, Las Vegas, Nevada
Sponsoring Org.:
USDOE
OSTI Identifier:
894023
Report Number(s):
NA
MOL.20060711.0171, DC# 47437; TRN: US0700085
DOE Contract Number:  
NA
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; BOREHOLES; DRILLING; SEDIMENTARY ROCKS; SILTSTONES; SPATIAL DISTRIBUTION; TUFF; YUCCA MOUNTAIN

Citation Formats

Spengler, R W, Byers, F M, and Dickerson, R P. A revised Litostragraphic Framework for the Southern Yucca Mountain Area, Nye County, Nevada. United States: N. p., 2006. Web. doi:10.2172/894023.
Spengler, R W, Byers, F M, & Dickerson, R P. A revised Litostragraphic Framework for the Southern Yucca Mountain Area, Nye County, Nevada. United States. doi:10.2172/894023.
Spengler, R W, Byers, F M, and Dickerson, R P. Fri . "A revised Litostragraphic Framework for the Southern Yucca Mountain Area, Nye County, Nevada". United States. doi:10.2172/894023. https://www.osti.gov/servlets/purl/894023.
@article{osti_894023,
title = {A revised Litostragraphic Framework for the Southern Yucca Mountain Area, Nye County, Nevada},
author = {Spengler, R W and Byers, F M and Dickerson, R P},
abstractNote = {An informal, revised lithostratigraphic framework for the southern Yucca Mountain area, Nevada has been developed to accommodate new information derived from subsurface investigations of the Nye County Early Warning Drilling Program. Lithologies penetrated by recently drilled boreholes at locations between Stagecoach Road and Highway 95 in southern Nye County include Quaternary and Pliocene alluvium and alluvial breccia, Miocene pyroclastic flow deposits and intercalated lacustrine siltstone and claystone sequences, early Miocene to Oligocene pre-volcanic sedimentary rocks, and Paleozoic strata. Of the 37 boreholes currently drilled, 21 boreholes have sufficient depth, spatial distribution, or traceable pyroclastic flow, pyroclastic fall, and reworked tuff deposits to aid in the lateral correlation of lithostrata. Medial and distal parts of regional pyroclastic flow deposits of Miocene age can be correlated with the Timber Mountain, Paintbrush, Crater Flat, and Tram Ridge Groups. Rocks intercalated between these regional pyroclastic flow deposits are substantially thicker than in the central part of Yucca Mountain, particularly near the downthrown side of major faults and along the southern extent of exposures at Yucca Mountain.},
doi = {10.2172/894023},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {3}
}