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The Glacier National Park: a Popular Guide to its Geology and Scenery
From introduction: This report is a guide to the geology and scenery of Glacier National Park.
Date:
1914
Creator:
Campbell, Marius R.
Object Type:
Report
System:
The UNT Digital Library
Geology of the Powder River Basin, Wyoming and Montana with Reference to Subsurface Disposal of Radioactive Wastes
From introduction: This report on the geology of the Powder River Basin is one of a series of reports by the Geological Survey on sedimentary basins in the United States.
Date:
February 1962
Creator:
Beikman, Helen M.
Object Type:
Report
System:
The UNT Digital Library
Geology of the Williston Basin, North Dakota, Montana, and South Dakota, with Reference to Subsurface Disposal of Radioactive Wastes
From introduction: This report evaluates four possible types of subsurface reservoirs for radioactive wastes in the Williston basin.
Date:
June 1962
Creator:
Sandberg, Charles A.
Object Type:
Report
System:
The UNT Digital Library
Shorter Contributions to General Geology, 1918
A collection of writings on the shorter contributions to general geology.
Date:
1919
Creator:
White, David
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance for Uraniferous Lignites in North Dakota, South Dakota, Montana, and Wyoming
From introduction: This report details the reconnaissance for uraniferous lignites in North Dakota, South Dakota, Montana, and Wyoming during 1948 and 1949.
Date:
July 1952
Creator:
Beroni, E. P. & Bauer, Herman L., Jr.
Object Type:
Report
System:
The UNT Digital Library
Uranium and Thorium Deposits in East-Central Idaho and Southwestern Montana
From transmittal letter: This report contains the results of radiometric examinations of 39 mines and prospects, and a detailed description of the properties examined.
Date:
March 1952
Creator:
Trites, Albert F., Jr. & Tooker, Edwin Wilson
Object Type:
Report
System:
The UNT Digital Library
Geology and Ore Deposits of the Libby Quadrangle, Montana
From introduction: This report details the results of a geological survey of the Libby Quadrangle, Montana.
Date:
1948
Creator:
Gibson, Russell
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report on the Geology and Mineral Deposits of the Northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana
From introduction: This preliminary report details the geology and mineral deposits of the northern Elkhorn Mountains, Montana.
Date:
September 1955
Creator:
Smedes, Harry Wynn
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance Investigations for Uranium in Black Shale Deposits of the Western States during 1951 and 1952
Report discussing investigations seeking uranium in deposits of black shale around the geographical areas of the Western States
Date:
September 1953
Creator:
Duncan, Donald Cave
Object Type:
Report
System:
The UNT Digital Library
Uranium-Bearing Lignite and its Relation to the White River and Arikaree Formations in Northwestern South Dakota and Adjacent States
From introduction: The purpose of the study is to evaluate the economic possibilities of radioactive lignites and to determine the geologic factors controlling the accumulation of uranium in lignite.
Date:
September 1954
Creator:
Denson, N. M.; Bachman, G. O. & Zeller, H. D.
Object Type:
Report
System:
The UNT Digital Library
The Lance Formation: Petrography and Stratigraphy, Powder River Basin and Nearby Basins, Wyoming and Montana
From abstract: The uppermost Cretaceous Lance Formation was studied in the Powder River Basin and nearby basins of Wyoming and Montana. The Lance Formation is overlain by the continental Paleocene Fort Union Formation. This report is a petrography and stratigraphy study on these basins.
Date:
1992
Creator:
Connor, Carol Waite
Object Type:
Report
System:
The UNT Digital Library
Sedimentology and Depositional History of the Lower Paleocene Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana
From abstract: This report is a study on the history of sedimentology and deposition of the lower Paleocene Tullock Member of the Fort Union Formation, Powder River Basin, Wyoming and Montana while looking at the geometry and sedimentary structures.
Date:
1993
Creator:
Brown, Janet L.
Object Type:
Report
System:
The UNT Digital Library
Cambrian Through Mississippian Rocks of the Powder River Basin, Wyoming, Montana, and Adjacent Areas
From abstract: This report describes Cambrian through Mississippian rocks in the Powder River Basin representing five depositional sequences that reflect both the biological evolution and the tectonic development of western North America.
Date:
1993
Creator:
Macke, David L.
Object Type:
Report
System:
The UNT Digital Library
Gravity and Aeromagnetic Studies of the Powder River Basin and Surrounding Areas, Southeastern Montana, Northeastern Wyoming, and Western South Dakota
From abstract: This report contains complete Bouguer anomaly, isostatic residual anomaly, and horizontal gradient anomaly gravity maps of the Powder River Basin and surrounding areas in southeastern Montana, northeastern Wyoming, and western South Dakota were compiled using gravity data from 21,528 stations. A total-intensity anomaly aeromagnetic map with 3 mile spaced east-west flight-lines is also presented. Also included is an analysis of these maps and data, focusing on gravity and aeromagnetic studies.
Date:
1994
Creator:
Robbins, Stephen L.
Object Type:
Report
System:
The UNT Digital Library
The Forsyth Coal Field: Rosebud, Treasure, and Big Horn Counties, Montana
From introduction: acknowledgements.-The Forsyth field was examined to collect data upon which to classify the public land included in it with regard to its value as coal land. The geologic mapping was done with the plane table and telescopic alidade, and all locations were tied to land corners.
Date:
1929
Creator:
Dobbin, C. E.
Object Type:
Report
System:
The UNT Digital Library
Stratigraphy and Geologic History of the Montana Group and Equivalent Rocks, Montana, Wyoming, and North and South Dakota
From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.
Date:
1973
Creator:
Gill, James R. & Cobban, William Aubrey
Object Type:
Report
System:
The UNT Digital Library
The Kevin-Sunburst Oil Field and Other Possibilities of Oil and Gas in the Sweetgrass Arch, Montana
From introduction: The discovery of oil near Kevin, Mont., in March, 1922, gave prominence to the Sweetgrass arch, which is a large structural uplift somewhat similar in size and degree of folding to the Cincinnati arch. Most of the development so far attempted on this fold has been on the Kevin-Sunburst dome, a bulge upon the crest of the arch just south of the Canadian boundary. The dome covers about 16 townships, is nearly circular in outline, and has very low dips away from its highest point in all directions. Within the last five years (1923-1927) about 1,500 wells have been drilled upon it, over 880 of which are rated as productive. Since May, 1925, the field has stood second in production in the Rocky Mountain States being exceeded only by Salt Creek.
Date:
1929
Creator:
Collier, Arthur J.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana
From abstract: A mineral resource survey of the Ruby Mountains Wilderness Study Area (MT-076-001) was made in 1984- 85. Thirty-two million tons of subeconomic mineral resources that average 21 percent iron occur in the Kelly iron deposit and constitute an identified resource adjacent to the southeasternmost edge of the study area. Moderate and high mineral resource potential for talc deposits occur within a large body of Archean (see geologic time chart in appendix) marble in the central part of the study area (fig. 1). The study area has a low mineral resource potential for uranium and for oil and gas sources. No phosphate deposits exist in the study area.
Date:
1987
Creator:
Tysdal, Russell G.; Lee, G. K.; Hassemer, Jerry H.; Hanna, W. F.; Schmauch, S. W. & Berg, Richard B.
Object Type:
Report
System:
The UNT Digital Library
Uranium Deposits of the Northern Part of the Boulder Batholith, Montana
From abstract: Uranium minerals and radioactivity anomalies occur in many silver lead veins and chalcedony veins and vein zones in the Boulder batholith of southwestern Montana.
Date:
September 1955
Creator:
Becraft, George E.
Object Type:
Report
System:
The UNT Digital Library
Eastern and Central Montana as a Possible Source Area of Uranium
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.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report of Reconnaissance for Uraniferous Granitic Rocks in Montana, Idaho, Oregon, Washington, and California
From abstract: A reconnaissance to determine the uranium content of granitic rocks in the western states was made during parts of October and November 1951. The paucity of our knowledge of the granitic rocks that are most likely to contain significant quantities of uranium has prevented all but a very general isolation of areas or types of granitic rocks for reconnaissance examination.
Date:
April 1952
Creator:
Coats, Robert Roy
Object Type:
Report
System:
The UNT Digital Library
Uranium-Bearing Deposits West of Clancey, Jefferson County, Montana
From abstract: Nine uranium deposits occur in a small area west of Clancey, Jefferson County, Mont. These deposits are all in or near silicified fracture zones in quartz monzonite and related rocks of the Boulder batholith. The deposits contain pockets of uranium minerals in cavities in brecciated well-silicified rock. The primary uranium mineral pitchblende has been found in one pod. Secondary uranium minerals occur as fracture linings and in pore spaces in and adjacent to the silicified zones.
Date:
June 1951
Creator:
Roberts, Wayne A. & Gude, Arthur J., III
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance for Radioactive Minerals in Washington, Idaho, and Western Montana, 1952-1955
From abstract: Approximately fifty radioactive deposits and nearly fifty properties not abnormally radioactive were examined during a geologic reconnaissance for radioactive minerals in Idaho, Washington, and western Montana during the period July 1952 -- June 1955. The most important uranium deposits are in or near granitic to quartz monzonitic intrusions of probable Cretaceous age in central and northern Idaho, westernmost Montana, and northeastern Washington.
Date:
May 1957
Creator:
Weis, Paul L.; Armstrong, Frank C. & Rosenblum, Samuel
Object Type:
Report
System:
The UNT Digital Library
Chromite Deposits in Central Part Stillwater Complex, Sweet Grass County, Montana
From abstract: The chromite deposits of the central part of the Stillwater complex lie in a belt 9 miles long between the valleys of Boulder River and the West Fork of the Stillwater River in Sweet Grass County, Mont. The chromite occurs as layers near the middle part of the ultramafic zone in the lower part of the complex. The layers, originally horizontal, have been tilted so that they dip northeastwards at angles ranging from nearly horizontal to nearly vertical, and are cut by many cross faults, the largest with a horizontal offset of 3,000 feet. Investigations by the United States Geological Survey and the United States Bureau of Mines have shown that in this belt there are 5 sections ranging in length from 850 to 3,800 feet along the strike where the continuity and grade of the chromite can be reasonably inferred.
Date:
1955
Creator:
Howland, A. L.
Object Type:
Report
System:
The UNT Digital Library