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Geology of the Huron River Pitchblende Occurrence, Baraga County, Michigan
Report discussing the geology of an occurrence of minor amounts of uranium-bearing pitchblende discovered in 1949 by the East Branch of the Huron River, which was subsequently diamond drilled and explored at shallow depths.
Date:
February 1955
Creator:
Vickers, R. C.
System:
The UNT Digital Library
Greens Creek Uranium Occurrence, Marquette County, Michigan
From abstract: Metatorbernite and bassetite are present in altered carbonaceous and quartzose slate of probable upper Huronian age. The slate is part of a small inlier of Huronian rocks between the Gwinn iron district to the southeast and the Marquette iron district to the northwest, Marquette County, Mich. Samples taken from a shallow trench, which was dug in the area of highest radioactivity, contained as much as 0.68 percent uranium. A 4-foot channel sample of the slate contained 0.036 percent uranium.
Date:
June 1955
Creator:
Vickers, R. C.
System:
The UNT Digital Library