Geology physical properties and surface effects at Discus Thrower Site Yucca Flat Nevada test site

Carr, James; Miller, C H; Dodge, Harry W W

ISBN 10: 1288948050 / ISBN 13: 9781288948055

Published by Bibliogov, 2013

About this Item

Print on Demand pp. 32.

Seller Inventory # 393638893

Bibliographic Details

• Title: Geology physical properties and surface effects at Discus Thrower Site Yucca Flat Nevada test site
• Publisher: Bibliogov
• Publication Date: 2013
• Language: English
• ISBN 10: 1288948050
• ISBN 13: 9781288948055
• Binding: Soft cover
• Condition: New

About this title

Synopsis

Geologic studies in connection with Project Discus Thrower have furnished detailed stratigraphic and structural information about northwestern Yucca Flat. The Paleozoic rocks consist of a lower carbonate sequence, argillite of the Eleana Formation, and an upper carbonate sequence. The distribution of these rocks suggests that both top and bottom of the Eleana are structural contacts, probably thrusts or reverse faults. The overlying tuff includes several units recognized in the subsurface, such as the Fraction Tuff and tuff of Redrock Valley. Other units recognized include bedded tuff associated with the Grouse Canyon Member of Belted Range Tuff, and the Rainier Mesa and Ammonia Tanks Members of the Timber Mountain Tuff. The Timber Mountain and Grouse Canyon are extensively altered to montmorillonite (a swelling clay), possibly as a result of ponding of alkaline water. The overlying alluvium locally contains at the base a clayey, tuffaceous sandstone. Geophysical logs were used as an aid in locating geologic contacts and determining in situ physical properties. Graphic logs are presented that show the correlation of lithology and geophysical logs. Many of the rock units have characteristic log responses, but alteration within rock units affects the logs strikingly in some drill holes. The most significant surface effect of the experiment was the formation of a 4-foot fault scarp northwest of the site.