Published 1985 | Version v1
Report Restricted

Distribution and chemistry of diagenetic minerals at Yucca Mountain, Nye County, Nevada

Creators

Description

Yucca Mountain is being studied as a potential site in southern Nevada for an underground high-level nuclear waste repository. A major consideration for selecting this site is the presence of abundant zeolites in Miocene ash-flow tuffs underlying the region. We have studied the distribution and chemistry of diagenetic minerals at Yucca Mountain using optical petrography, x-ray powder diffraction, electron microanalysis, and x-ray fluorescence spectrometry to identify factors controlling the distribution of these minerals and to understand the diagenetic history at Yucca Mountain. Diagenetic alteration is best developed in nonwelded ash-flow tuffs and in the nonwelded tops and bottoms of welded ash-flow cooling units having crystallized interiors. These nonwelded tuffs were vitric tuffs become progressively less hydrous with depth, and four diagenetic mineral zones are recognized beneath most of Yucca Mountain. 12 refs., 12 figs., 7 tabs

Availability note (English)

Available from NTIS, PC A04/MF A01; 1 as DE87013292.

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Additional details

Additional titles

Augmented title (English)
NNWSI

Publishing Information

Imprint Pagination
59 p.
Report number
DOE/NBM--7013292

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
19024100
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; S54: ENVIRONMENTAL SCIENCES; S58: GEOSCIENCES;
Descriptors DEI
ENVIRONMENTAL EXPOSURE PATHWAY; GEOCHEMICAL SURVEYS; HIGH-LEVEL RADIOACTIVE WASTES; MINERALS; NEVADA; NEVADA TEST SITE; RADIONUCLIDE MIGRATION; UNDERGROUND DISPOSAL; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; YUCCA MOUNTAIN; ZEOLITES
Descriptors DEC
COHERENT SCATTERING; DEVELOPED COUNTRIES; DIFFRACTION; ENVIRONMENTAL TRANSPORT; GEOLOGIC SURVEYS; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MANAGEMENT; MASS TRANSFER; MATERIALS; MOUNTAINS; NORTH AMERICA; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SCATTERING; SILICATE MINERALS; SPECTROSCOPY; USA; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES

Optional Information

Notes
Portions of this document are illegible in microfiche products.