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Exploration of the Big Boulder Prospect, Larimer County, Colorado
From introduction: The Big Boulder prospect is in SE 1/4 sec. 36, T.7N., R.,72W., in Tarimer County, Colorado. The prospect has been opened by four irregular trenches and shallow cuts, and a 10-foot discovery shaft. Hanley 1/4 states that 10.5 tons of beryl were produced from the Big Boulder prospect in 1936, and about 600 pounds in 1941.
Date:
August 1950
Creator:
Thurston, W. R.
System:
The UNT Digital Library
Forty-Niner, King Solomon Ridge, and West End Claims Near Clancy, Jefferson County, Montana
Abstract: Secondary minerals of the uranite group occur in dense quartz veins and in altered aplitic granite along and near the crest of the east-trending ridge about one mile west of Clancy, Montana. Brief examination suggests that the radioactive minerals are erratically distributed, but a more thorough study of the area will be made by the Geological Survey during the coming field season.
Date:
August 1950
Creator:
Klepper, M. R.
System:
The UNT Digital Library
Radioactivity and Mineralogy of Placer Concentrates From the Fortymile District, Alaska
Report discussing the study of radioactivity and mineralogy of 24 placer concentrate samples from the Fortymile district of east-central Alaska. Only two samples showed significant radioactivity due to uraniferous thorianite. Sections include geology, and radiometric and mineralogic studies.
Date:
August 1950
Creator:
White, M. G.
System:
The UNT Digital Library
Examination for Radioactivity in a Copper-Lode Prospect on Ruby Creek Kobuk River Valley, Alaska
The following report covers investigations on radioactivity in copper-bearing iron oxide mineralization fissures and fractures in narrow zones within Kobuk River Valley, Alaska.
Date:
August 1950
Creator:
White, M. G.
System:
The UNT Digital Library
Trace Elements Reconnaissance in the Jakolof Bay Area, Southern Alaska
Abstract: "As a result of inquiries by prospectors in 1948 concerning radioactive ores in the vicinity of Jakolof Bay on the Kenai Peninsula in southern Alaska, the Geological Survey conducted a brief investigation during 1949. No radioactive material was found. Possibly a chromite stockpile in this locality was mistaken for pitchblades."
Date:
August 1950
Creator:
Mexham, R. M. & Nelson, A. E.
System:
The UNT Digital Library