Preliminary geological interpretation and lithologic log of the exploratory geothermal test well (INEL-1), Idaho National Engineering Laboratory, eastern Snake River Plain, Idaho

Doherty, David J.; McBroome, Lisa Ann; Kuntz, Mel A.

Abstract:

A 10,365 ft (3,159 m) geothermal test well was drilled in the spring of 1979 at the Idaho National Engineering Laboratory, eastern Snake River Plain, Idaho: The majority of rock types encountered in the borehole are of volcanic origin. An upper section above 2,445 ft (745 m) consists of basaltic lava flows and interbedded .sediments of alluvial, lacustrine, and volcanic origin. A lower section below 2,445 ft (745 m) consists exclusively of rhyolitic welded ash-flow tuffs, air-fall ash deposits, nonwelded ash-flow ruffs, and volcaniclastic sediments. The lithology and thickness of the rhyolitic rocks suggest that they are part of an intracaldera fill.

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USGS Numbered Series

ProdID:

8593

Citation Author:

Doherty, David J.; McBroome, Lisa Ann; Kuntz, Mel A.

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ENGLISH

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10 p. :ill., map ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

Citation Series Number:

79-1248

Citation Search Results Text:

Preliminary geological interpretation and lithologic log of the exploratory geothermal test well (INEL-1), Idaho National Engineering Laboratory, eastern Snake River Plain, Idaho; 1979; OFR; 79-1248; Doherty, David J.; McBroome, Lisa Ann; Kuntz, Mel A.