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Contributions to Economic Geology 1955

Description: A report about phosphates found in the Permian Phosphoria formation of the Rocky Mountains. This area constitutes one of the worlds largest reserves of phosphate.
Date: 1956
Creator: Cressman, Earle R.
open access

Eastern and Central Montana as a Possible Source Area of Uranium

Description: From abstract: Geologic settings are recognized in central and eastern Montana and in a few places in southwestern Montana that elsewhere are similar to the settings for the occurrence of uranium deposits. Several specific areas in Montana seem favorable for the occurrence of uranium.
Date: April 1956
Creator: Armstrong, Frank C.
open access

Geology of the Stanford-Hobson Area, Central Montana

Description: From introduction: The Stanford-Hobson area project was undertaken by the United States Geological Survey, in cooperation with the United States Bureau of Reclamation, as part of a program for the geologic mapping and investigation of mineral resources in the Missouri River basin. The field work that is the basis of the ensuing report consisted of mapping the geology and determining stratigraphic relationships in sufficient detail to evaluate the mineral resources, especially the oil and gas po… more
Date: 1956
Creator: Vine, James David
open access

Reconnaissance Geology of Western Mineral County, Montana

Description: From introduction: This reconnaissance study was undertaken to determine the major geologic features of the western part of Mineral County, Mont., principally in the drainage basin of the St. Regis River.
Date: 1956
Creator: Wallace, Robert E. & Hosterman, John W.
open access

Substation History: Montana

Description: This report gives information about substation locations, elevations,exposures and many from date station was established through the year 1955,which are present in Montana.
Date: 1956
Creator: U.S Department of Commerce
open access

Tectonic Map of Eastern Montana Showing the Distribution of Uranium Deposits

Description: From introduction: A tectonic map for the northern part of the Cordilleran Foreland was compiled to aid in establishing the geologic setting of uranium deposits within the region, and to determine what relationships, if any, exist between the distribution of uranium deposits and localities, and the regional tectonic pattern (Osterwald, 1955). The relationships might suggest new areas favorable for the discovery of uranium deposits in the Cordilleran Foreland as well as in other areas with simil… more
Date: March 1956
Creator: Osterwald, Frank W. & Dean, Basil G.
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