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Preliminary Results of Radiometric Reconnaissance of Parts of the Northwestern San Juan Mountains, Gunnison, Ouray, San Juan, San Miguel, and Dolores Counties, Colorado
From abstract: A reconnaissance radiometric survey of parts of the northwestern San Juan Mountains has revealed the occurrence of uranium-bearing ores in several mining districts in Ouray and San Juan Counties, and the occurrence of thorium-bearing veins in southwestern Gunnison County.
Date:
March 1952
Creator:
Burbank, W. S. & Pierson, Charles Thomas
System:
The UNT Digital Library
Shorter Contributions to General Geology, 1941-42
Preface: The author of this paper gives a thorough description of a complex of very unusual igneous rocks and associated hydrothermal deposits.
Date:
1942
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library
Thorium and Rare-Earth Minerals in Powderhorn District, Gunnison County, Colorado
From abstract: Thorium has been found since 1949 in at least 33 deposits in an area 6 miles wide and 20 miles long in the Powderhorn district, Gunnison County, Colo. The district is underlain largely by pre-Jurassic metamorphic and igneous rocks, most of which, if not all, are pre-Cambrian in age. These rocks are overlain by sandstone of the Morrison formation of Jurassic age, and by volcanic rocks of the Alboroto group and the Hinsdale formation of Miocene and of Pliocene(?) age, respectively.
Date:
1956
Creator:
Olson, J. C. & Wallace, S. R.
System:
The UNT Digital Library
Geology of the Quartz Creek Pegmatite District, Gunnison County, Colorado
Report discussing the geology of the Quartz Creek pegmatite district of Gunnison County, Colorado. "The Quartz Creek pegmatite district includes an area of about 29 square miles in the vicinity of Quartz Creek in Gunnison County, Colorado. This area contains 1,803 pegmatites that are intruded into pre-Cambrian rocks."
Date:
April 1952
Creator:
Staatz, Mortimer H. & Trites, Albert F.
System:
The UNT Digital Library
Radiometric Reconnaissance in the Garfield and Taylor Park Quadrangles, Chaffee and Gunnison Counties, Colorado
Report discussing field work done between 1947 and 1951 for a reconnaissance radiometric survey of the Garfield and Taylor Park quadrangles of the Sawatch Range in Chaffee and Gunnison Counties of west-central Colorado.
Date:
February 1953
Creator:
Dings, M. G. & Schafer, Max
System:
The UNT Digital Library
Geology of the Quartz Creek pegmatite district, Gunnison County, Colorado
A report regarding the geology of the Quartz creek Pegmatite District, in Gunnison County, Colordao
Date:
April 1952
Creator:
Staatz, Mortimer H. & Trites, Albert F.
System:
The UNT Digital Library
Thorium and rare earth minerals in the Powderhorn district, Gunnison County, Colorado
"Thorium deposits were discovered in the Powderhorn district in 1949. This district has long been known for its occurrences of alkalic igneous rocks, of which the best known is the Iron Hill complex (Larsen, 1942). Some of these alkalic rocks contain titanium, barium, strontium, rare earths, thorium, and niobium in greater percentages than those of most igneous rocks. A study of the thorium deposits was undertaken to obtain more information on the geologic relation of minor elements, particularly rare earths, and thorium, to alkalic igneous rocks, and to evaluate the economic significance of the Thorium deposits."
Date:
February 1954
Creator:
Olson, J. C. & Wallace, S. R.
System:
The UNT Digital Library