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Title: Geology of the U-1a. 01 horizontal drift complex, southwestern Yucca Flat, Nevada Test Site

The U-1a.01 complex, site of a Los Alamos National Laboratory-sponsored experiment, is located in southwestern Yucca Flat on the Nevada Test Site. The complex is comprised of the vertical U-1a shaft, two large-diameter cable access holes, and approximately 229 m (750') of horizontal drift mined within alluvium 292.6 m (960') below the surface. Geologic mapping and related work at U-1a.01 afforded a unique opportunity to observe and evaluate the characteristics of alluvium in the subsurface of Yucca Flat, and to compare the results with surface and drill hole alluvium data. The Los Alamos Support Group of the Fenix and Scisson, Inc. Geology and Hydrology Division carried out a program of mapping, sampling and photography while mining was in progress, with the dual purpose of characterizing the geology of the site and documenting the mining operation. This report details the products and the results of that effort. 12 refs., 8 figs., 25 tabs.
Authors:
; ;
Publication Date:
OSTI Identifier:
6032322
Report Number(s):
DOE/NV/10322-37
ON: DE89015380
DOE Contract Number:
AC08-84NV10322
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Research Org:
Fenix and Scisson, Inc., Mercury, NV (USA)
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; MINE SHAFTS; GEOLOGY; ALLUVIAL DEPOSITS; DRILLING; MAPPING; MINING; NEVADA TEST SITE; GEOLOGIC DEPOSITS; NATIONAL ORGANIZATIONS; SHAFT EXCAVATIONS; US DOE; US ORGANIZATIONS 580100* -- Geology & Hydrology-- (-1989); 450202 -- Explosions & Explosives-- Nuclear-- Weaponry-- (-1989)