Resource Type
Serial/Series Title
United States Department of Energy Grand Junction Office Reports
182
GJBX
177
United States Geological Survey Reports
121
Atomic Energy Commission Reports
61
United States Bureau of Mines Reports
46
Water Resources Investigations Reports
36
Trace elements investigations report
30
Geological Survey bulletin
21
U.S. Geological Survey bulletin
18
Contributions to economic geology
15
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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
Bentonite Deposits of the Northern Black Hills District Wyoming, Montana, and South Dakota
From abstract: The northern Black Hills bentonite mining district includes parts of Crook County, Wyo., Carter County, Mont., and Butte County, S. Dak. Within this district, many beds of bentonite occur interspersed with sedimentary strata of Cretaceous age that have an average total thickness of about 3,000 feet and consist chiefly of marine shale, marl, and argillaceous sandstone. The bentonite beds occur in formations ranging upward from the Newcastle sandstone to the lower part of the Mitten black shale member of the Pierre shale. Tertiary (?) and Quaternary deposits of gravel, sand, and silt are present on extensive terraces, and deposits of such materials also extend along stream courses in all parts of the district.
Date:
1962
Creator:
Knechtel, Maxwell M. & Patterson, Sam H.
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
Geology and Mineral Deposits of the St. Regis-Superior Area, Mineral County, Montana
From introduction: The St. Regis-Superior area was studied during the summers of 1953 and 1954 as a part of geologic investigations by the U.S. Geologic Survey in and near the Coeur d'Alene district. The object of the present work was primarily threefold: to ascertain the main structural features in the area, with particular attention to the Osburn fault zone; to investigate the mineral deposits; and to determine the stratigraphic relations of the rocks.
Date:
1960
Creator:
Campbell, Arthur Byron
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 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
Geology of the Stanford-Hobson Area, Central Montana
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 possibilities in the area.
Date:
1956
Creator:
Vine, James David
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance Geology of Western Mineral County, Montana
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.
Object Type:
Report
System:
The UNT Digital Library
Geology of Big Horn County and the Crow Indian Reservation, Montana: with Special Reference to the Water, Coal, Oil and Gas Resources
From introduction: This report contains information concerning the geology of Big Horn County and the Crow Indian Reservation and their resources in ground water, coal, oil, and gas. These facts were collected in the course of studies for about a dozen field projects, which ranged in character from reconnaissance studies of large areas to very detailed mapping of certain tracts to show the occurrence of oil and gas. Consequently, the information at hand, either as to the geology or the resources, is not equally complete and definite for all parts.
Date:
1935
Creator:
Thom, W. T., Jr.; Hall, George Martin; Wegemann, Carroll H. & Moulton, G. F.
Object Type:
Report
System:
The UNT Digital Library
The Rosebud Coal Field, Rosebud and Custer Counties, Montana
From abstract: The Rosebud coal field, named from Rosebud Creek and the village of Rosebud, includes an area of about 1,050 square miles and forms a very small part of the subbituminous and lignite coal fields of eastern Montana and Wyoming and the western part of the Dakotas. It is an irregularly bounded tract lying south of the Yellowstone River in eastern Rosebud County and western Custer County and measures 50 miles from east to west and 28 miles from north to south. It adjoins the Forsyth coal field, on the west, the Ashland coal field, on the south, and the Miles City coal field, in part, on the north.
Date:
1936
Creator:
Pierce, William Gamewell
Object Type:
Report
System:
The UNT Digital Library
The Richey-Lambert Coal Field, Richland and Dawson Counties, Montana
From abstract: The Richey-Lambert coal field is an area of about 900 square miles in Richland and Dawson Counties, eastern Montana, along the divide between the Missouri and Yellowstone Rivers. In this region only flat-lying continental rocks occur near the surface. About 300 feet of the Lebo shale member and about 930 feet of the coal-bearing Tongue River member of the Fort Union formation, of Eocene age, are exposed in the area. Deposits of terrace gravel at two levels in the field are tentatively correlated with the gravel on the Cypress Hills, Saskatchewan, which has been assigned to the Oligocene by the Canada Geological Survey, and with the Flaxville gravel, of upper Miocene or Pliocene age.
Date:
1936
Creator:
Parker, Frank S.
Object Type:
Report
System:
The UNT Digital Library
Phosphate Rock Near Maxville, Philipsburg, and Avon, Montana
From abstract: This paper gives the results of a resurvey of certain areas in Montana to which renewed interest has been directed by the development recently of a market for crude phosphate rock in British Columbia, nearby.
Date:
1936
Creator:
Pardee, J. T.
Object Type:
Report
System:
The UNT Digital Library
Geology and Mineral Resources of North-Central Chouteau, Western Hill, and Eastern Liberty Counties, Montana
From abstract: This report describes a rectangular area of about 2,600 square miles in Chouteau, Hill, and Liberty Counties, Mont., adjacent to the international boundary. The area is a portion of the Missouri Plateau, a section of the Great Plains province, and lies between the Highwood Mountains, Bearpaw Mountains, and Sweetgrass Hills, of north-central Montana. The southern part of the area is drained by the Missouri River and its tributary Marias River, but the northern part is drained by the Milk River. These streams are trenched in narrow valleys several hundred feet deep. The land surface between them is a rolling plain interrupted by very broad, shallow valleys that probably were eroded during the Pleistocene epoch by large streams whose courses were doubtless diverted from time to time by the continental glaciers. These valleys are now occupied only by very small creeks.
Date:
1937
Creator:
Pierce, William Gamewell & Hunt, Charles B.
Object Type:
Report
System:
The UNT Digital Library
The Eastern Front of the Bitterroot Range, Montana
From abstract: The origin of the gneissic rocks on the eastern border of the Idaho batholith in the Bitterroot Range, near Hamilton, Mont., has long been in dispute. Lindgren regarded these rocks as the product of stresses related to a normal fault along the front of the range with an eastward dip of about 150. He thought both the hanging wall and the footwall had moved, with a total displacement along the fault plane of at least 20,000 feet. The faulting was believed to have been so recent as to be a major factor in the present topography. Langton appears to accept the concept of faulting but to regard the gneissic rocks as formed much earlier from a granitic rock that was more silicic and older than the Idaho batholith.
Date:
1952
Creator:
Ross, Clyde P.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and Stream Sediment Reconnaissance Basic Data for Roundup Quadrangle, Montana: Appendix
Data collected as part of a report on the Roundup Quadrangle in Montana including laboratory data on waters (pp. 1-46) and sediments (pp. 47-100) as well as field data (pp. 101-223).
Date:
August 31, 1981
Creator:
unknown
Object Type:
Dataset
System:
The UNT Digital Library
Condition Survey: Malmstrom Air Force Base, Montana
The purpose of this report is to present the results of a condition survey performed at Malmstrom Air Force Base (MAFB), Montana, during 24-27 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities.
Date:
April 1973
Creator:
Jackson, Ralph D.
Object Type:
Report
System:
The UNT Digital Library
Condition Survey: Glasgow Air Force Base, Montana
"The purpose of this report is to present the results of a condition survey performed at Glasgow Air Force Base (GAFB), Montana, during 17-20 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).
Date:
May 1973
Creator:
Jackson, Ralph D.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Report on the Rimini Area, Jefferson City Quadrangle, Jefferson County and Lewis and Clark County, Montana
Abstract: A number of radioactivity anomalies and secondary uranium minerals have been found in the Rimini area near the northwestern margin of the Boulder batholith. Most of the anomalies are associated with chalcedonic vein zones that consist of one or more veins of cryptocrystalline and fine-grained quartz in silicified quartz monzonite and alaskite. Seventeen of the anomalies were found along veins that contain base and precious metals; nine were along veins in the vicinity of the village of Rimini from which there has been production of lead, silver, zinc, and gold.
Date:
August 1954
Creator:
Becraft, George E.; Pinckney, Darrell M. & Rosenblum, Samuel
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
Mineral Resources of the Blacktail Mountains Wilderness Study Area, Beaverhead County, Montana
From summary:A mineral resource survey of a 10,610-acre part of the Blacktail Mountains Wilderness Study Area (MT-076- 002) was conducted in 1984-85. Identified subeconomic resources of barite exist in the area at the northernmost boundary, and a zone partly within the area along the northeastern boundary has a moderate mineral resource potential for silver and barite, and associated gold, copper, lead, and zinc. No producing mines occur in or adjacent to the area. The area lies within a region that is rated as having moderate energy resource potential for oil and for gas.
Date:
1987
Creator:
Tysdal, Russell G.; Lee, Gregory K.; Hassemer, Jerry H.; Hanna, W. F. & Benham, J. R.
Object Type:
Report
System:
The UNT Digital Library
Mineral Resources of the Sleeping Giant Wilderness Study Area, Lewis and Clark County, Montana
From abstract: A mineral resource survey was conducted in 1987 by the U.S. Geological Survey and the U.S. Bureau of Mines to evaluate mineral resources (known) and mineral resource potential (undiscovered) of the Sleeping Giant Wilderness Study Area (MT-075-111) in Lewis and Clark County, Montana. The only economic resource in the study area is an inferred 1.35-million-ton reserve of decorative stone (slate); a small gold placer resource is subeconomic. A high resource potential for decorative slate exists directly adjacent to the area of identified slate resource and in the northeastern part of the study area. The rest of the study area has a low potential for decorative slate. The westernmost part of the study area has a moderate resource potential for copper and associated silver in strata-bound deposits in green beds and limestone; potential is low in the rest of the study area.
Date:
1991
Creator:
Tysdal, Russell G.; Reynolds, Mitchell W.; Carlson, Robert R.; Kleinkopf, M. D.; Rowan, L. C. & Peters, Thomas J.
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
The Ashland Coal Field, Rosebud, Powder River, and Custer Counties, Montana
From introduction: The detailed information concerning the coal deposits of the Ashland field set forth in this report has been obtained in the course of an investigation that has been conducted both as a part of the United States Geological Survey's general systematic study of western coal lands and as an aid in the administration of the public lands. With the information obtained on the location of outcrops, the number, distribution, and thickness of coal beds, the accessibility of the coal, and the thickness of the overburden, the public lands of the region are classified as to their coal value; coal-bearing lands are differentiated from noncoal-bearing lands; and the administration of the coal-land leasing law is facilitated.
Date:
1932
Creator:
Bass, N. Wood
Object Type:
Report
System:
The UNT Digital Library