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Title: Geology of the Beowawe geothermal system, Eureka and Lander Counties, Nevada

A geologic study is described undertaken to evaluate the nature of structural and stratigraphic controls within the Beowawe geothermal system, Eureka and Lander Counties, Nevada. This study includes geologic mapping at a scale of 1:24,000 and lithologic logs of deep Chevron wells. Two major normal fault systems control the configuration of the Beowawe geothermal system. Active hot springs and sinter deposits lie along the Malpais Fault zone at the base of the Malpais Rim. The Malpais Rim is one of several east-northeast-striking, fault-bounded cuestas in north central Nevada. A steeply inclined scarp slope faces northwest towards Whirlwind Valley. The general inclination of the volcanic rocks on the Malpais dip slope is 5/sup 0/ to 10/sup 0/ southeast.
Authors:
Publication Date:
OSTI Identifier:
6718905
Report Number(s):
DOE/ID/12079-T1; ESL-37
DOE Contract Number:
AC07-79ID12079
Resource Type:
Technical Report
Research Org:
Utah Univ., Salt Lake City (USA). Research Inst.
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; NEVADA; GEOLOGY; GEOTHERMAL SYSTEMS; ANDESITES; BASALT; GEOCHEMISTRY; GEOLOGIC HISTORY; GEOLOGIC MODELS; GEOLOGIC STRUCTURES; HYDROTHERMAL ALTERATION; RECHARGE; SEDIMENTARY ROCKS; STRATIGRAPHY; VOLCANIC ROCKS; CHEMISTRY; IGNEOUS ROCKS; NORTH AMERICA; ROCKS; USA; WESTERN REGION Geothermal Legacy