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Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula

Miscellaneous Field Studies Map 2155-E

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Abstract

Potassium-argon age determinations for 84 volcanic, intrusive, and hydrothermally altered rocks from the Port Moller, Stepovak Bay, and Simeonof Island quadrangles are reported here. Of these age determinations, 78 samples were analyzed as part of Alaska Mineral Resource Assessment Program (AMRAP) studies in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles. Age deter- minations for 6 of the samples have been previously published (Burk, 1965; Kienle and Turner, 1976; Wilson and others, 1981). This report consists of a sample location map, analytical data (table 1), and rock descriptions (table 2).

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Sample locality map and analytical data for potassium-argon ages in the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska Peninsula
Series title:
Miscellaneous Field Studies Map
Series number:
2155
Chapter:
E
Year Published:
1994
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Alaska Science Center
Description:
Report: 18 p.; 1 Map: 39.0 x 36.2 inches
Country:
United States
State:
Alaska
Other Geospatial:
Alaska Peninsula, Port Moller quadrangle, Simeonof Island quadrangle, Stepovak Bay quadrangle
Scale:
250000