New potassium-argon data on the age of mineralization and metamorphism in the Willow Creek mining district, southern Talkeetna Mountains, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1977

Circular 772-B
By: , and 

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Abstract

The now largely abandoned Willow Creek mining district, southern Talkeetna Mountains, Alaska, produced nearly $18,000,000 in gold and minor silver between 1909 and the early 1950's. Mineralized quartz veins, which contain gold and silver along with minor quantities of base metals (in pyrite, galena, chalcopyrite, sphalerite, molybdenite, and arsenopyrite), cut Late Cretaceous and early Tertiary tonalite and quartzmica schist of probable Jurassic age (Ray, 1954; Silberman and others, 1976; Bela Csejtey, Jr., unpub. data, 1978).

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title New potassium-argon data on the age of mineralization and metamorphism in the Willow Creek mining district, southern Talkeetna Mountains, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1977
Series title Circular
Series number 772-B
DOI 10.3133/70180239
Year Published 1978
Language English
Publisher U.S. Government Printing Office
Publisher location Washington, D.C.
Contributing office(s) Alaska Science Center
Description 5 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title The United States Geological Survey in Alaska: Accomplishments during 1977 (Circular 772-B)
First page B-65
Last page B-69
Country United States
State Alaska
Other Geospatial Talkeetna Mountains, Willow Creek mining district
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