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Home / Geologic Maps / 1:24,000 Geologic Maps / 1:24,000 Geologic Maps Tule Valley Area / Interim geologic map of the Little Drum Pass quadrangle, Millard County, Utah

Interim geologic map of the Little Drum Pass quadrangle, Millard County, Utah

Interim geologic map of the Little Drum Pass quadrangle, Millard County, Utah
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SKU OFR-423
Weight 0.38 lbs
 
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By: L. F. Hintze

This quadrangle covers most of the Little Drum Mountains, which is a small northwest-trending range in the Basin and Range Province. The Little Drum Mountains are about six miles across at their widest and about 20 miles long. The southeastern end of the range is about 20 miles west of Delta, Utah. Excellent bedrock exposures reveal that the range is almost entirely made up of rocks of volcanic origin ? lahars, lava flows, ash-flow tuffs, and volcanic conglomerate and sandstone ? that are late Eocene in age. These volcanic rocks were likely derived from eruptive centers to the north in the adjacent Drum and Keg Mountains. The Little Drum Mountains were later tilted into a west-dipping homocline during Basin and Range faulting. Information in this publication includes: text description of the geology history of the quadrangle, a lithologic column, and a correlation chart of map units.

This Open-File release makes information available to the public during the review and production period necessary for a formal UGS publication. This map may be incomplete, and inconsistencies, errors, and omissions have not been resolved. While the document is in the review process, it may not conform to UGS standards; therefore it may be premature for an individual or group to take actions based on its contents.

Other Information:
Published: 2003
Pages: 27 pl.
Plates: 1 pl.
Scale: 1:24,000
Location: Millard County
Media Type: Paper Map

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