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Geologic Map of the Umiat Quadrangle, Alaska

Scientific Investigations Map 2817-A

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Abstract

This geologic map of the Umiat quadrangle is a compilation of previously published USGS geologic maps and unpublished mapping done for the Richfield Oil Corporation. Geologic mapping from these three primary sources was augmented with additional unpublished map data from British Petroleum Company. This report incorporates recent revisions in stratigraphic nomenclature. Stratigraphic and structural interpretations were revised with the aid of modern high-resolution color infrared aerial photographs. The revised geologic map was checked in the field during the summers of 2001 and 2002. The geologic unit descriptions on this map give detailed information on thicknesses, regional distributions, age determinations, and depositional environments. The paper version of this map is available for purchase from the USGS Store.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Geologic Map of the Umiat Quadrangle, Alaska
Series title:
Scientific Investigations Map
Series number:
2817
Chapter:
A
Edition:
Version 1.3, Revised 2007
Year Published:
2004
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
U.S. Geological Survey
Description:
ReadMe; Map Sheet: 32 x 35 inches; Data Files
Scale:
250000
Additional Online Files(Y/N):
Y