Tertiary volcanic and hypabyssal rocks in the Ugashik quadrangle: A section in Geological Survey research 1981
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Abstract
Potassium-argon dating of volcanic and hypabyssal rocks from the Ugashik quadrangle by F. H. Wilson and Nora Shew indicates that these rocks fall into the same two age groupings as those of the Chignik and Sutwik Island quadrangles to the south. Rocks of late Eocene to earliest Miocene and latest Miocene to Holocene age are found in both areas. Preliminary mapping by R. L. Detterman, J. E. Case, and F. H. Wilson indicates a major break in the trend to the west. This offset occurs in the vicinity of Wide and Puale Bays.
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Tertiary volcanic and hypabyssal rocks in the Ugashik quadrangle: A section in Geological Survey research 1981 |
Series title | Professional Paper |
Series number | 1275 |
DOI | 10.3133/70180411 |
Year Published | 1982 |
Language | English |
Publisher | U.S. Government Printing Office |
Publisher location | Washington, D.C. |
Contributing office(s) | Alaska Science Center |
Description | 1 p. |
Larger Work Type | Report |
Larger Work Subtype | USGS Numbered Series |
Larger Work Title | Geological Survey research 1981 (Professional Paper 1275) |
First page | 89 |
Last page | 89 |
Country | United States |
State | Alaska |
Other Geospatial | Ugashik quadrangle |
Google Analytic Metrics | Metrics page |