Preliminary results of potassium-argon age determinations from the Ugashik quadrangle, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1980

Circular 844
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Abstract

Early and preliminary results of potassiumargon dating work on samples from 12 sites in the Ugashik quadrangle indicate a continuation of the geologic trends seen in the Chignik and Sutwik Island quadrangles to the south (Wilson, 1980). Tertiary volcanic and hypabyssal rocks apparently fall into two age groups: early Tertiary-late Eocene to earliest Miocene and late Tertiary and Quaternary-late Miocene to Holocene (fig. 53).

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Preliminary results of potassium-argon age determinations from the Ugashik quadrangle, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Series title Circular
Series number 844
DOI 10.3133/70180226
Year Published 1982
Language English
Publisher U.S. Geological Survey
Publisher location Alexandria, VA
Contributing office(s) Alaska Science Center Geology Minerals, Alaska Science Center
Description 2 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title The United States Geological Survey in Alaska: Accomplishments during 1980 (Circular 844)
First page 86
Last page 87
Country United States
State Alaska
Other Geospatial Alaska Peninsula, Ugashik Quadrangle