A preliminary guidebook for identifying stratigraphic contacts at the Nevada Test Site

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:138339

Pawloski, G A; McKague, H L; Wagoner, J L ^[1]; McKinnis, W B ^[2]

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1. Lawrence Livermore National Lab., CA (United States)
2. Lawrence Livermore National Lab., Mercury, NV (United States)

Lithologic variation, regional depositional trends, and the lack of written guidelines have resulted in inconsistencies in the recognition of stratigraphic contacts in drill holes at the Nevada Test Site (NTS). Stratigraphic identification, based on mineralogy of discrete samples, can be augmented by geophysical logs and downhole movies to more accurately and consistently locate contacts between units. Criteria are established for locating the base of the Pahute Mesa ash-flow tuff, the top of the Ammonia Tanks ash-flow tuff, the top of the Ammonia Tanks bedded tuff, and the top and the base of the Rainier Mesa Tuff.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 138339
• Report Number(s): UCRL-JC-106918; CONF-9109114-10; ON: DE92008074; TRN: 92:006987
• Resource Relation: Conference: 6. symposium on containment of underground nuclear explosions, Reno, NV (United States), 24-26 Sep 1991; Other Information: PBD: Jan 1992
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
NEVADA TEST SITE
STRATIGRAPHY
GEOPHYSICAL SURVEYS
MANUALS
LITHOLOGY
SAMPLING
TUFF
GEOLOGIC DEPOSITS
GEOLOGY
PROTON PRECESSION MAGNETOMETERS
DRILLING
BOREHOLES
PHOTOGRAPHY
GAMMA LOGGING
Yucca Mountain Project