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Chronology of Late Cretaceous Igneous and Hydrothermal Events at the Golden Sunlight Gold-Silver Breccia Pipe, Southwestern Montana
A report about gold mineralization at the Golden Sunlight breccia pipe, southwestern Montana, is related to emplacement of Late Cretaceous alkali-calcic rhyolite and subsequent collapse of the Belt Supergroup wallrock and rhyolite in the pipe.
Date:
1996
Creator:
DeWitt, Ed; Foord, Eugene E.; Zartman, Robert E.; Pearson, Robert C. & Foster, Fess
Object Type:
Report
System:
The UNT Digital Library
Mineralogy of Uranium-Bearing Deposits in the Boulder Batholith, Montana: Final Report, July 1, 1952 to December 31, 1956
From introduction: This report describes the program of research on mineralogy and petrography of certain uraniferous vein deposits in the Boulder batholith of western Montana.
Date:
October 23, 1957
Creator:
Wright, Harold D.; Bieler, Barrie H.; Emerson, D. O. & Shulhof, W. P.
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
Tectonic Map of Eastern Montana Showing the Distribution of Uranium Deposits
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 similar tectonic history. The map will show the distribution of crest lines and troughs of folds, faults, uranium deposits and localities, and areas of volcanic activity. Outcrop areas of Precambrian and post-Eocene rocks are shown to designate the relative age of structures. Where possible the Precambrian rocks are subdivided into structural types, so that their influence on younger deformations may be inferred. The map of eastern Montana is one of a series being prepared before the final map is assembled (fig. 1.).
Date:
March 1956
Creator:
Osterwald, Frank W. & Dean, Basil G.
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
The Comet and Gray Eagle Mines and Adjacent Area, Jefferson County, Montana
Abstract: Anomalous radioactivity and uranium minerals have been found on the dumps of the Comet, Gray Eagle, and Silver Hill mines situated along the Comet-Gray Eagle shear zone. The shear zone is from 50 to 200 feet in width and has been traced 5 1/2 miles. The Gray Eagle mine is currently being reopened but no underground work, with the exception of a few shallow shafts and adits, has been done between the Gray Eagle and Comet mines. Because of the high U3 08 content of the samples from the Comet and Gray Eagle dumps, it is recommended that a minimum of four diamond drill holes totaling 3, 000 feet be drilled by AEC between the two mines to intersect the shear zone 300 to 500 feet below the surface. This drilling should be made contingent upon the results of the Gray Eagle exploration.
Date:
March 1953
Creator:
Becraft, George Earle
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
[Invitation to Memorial Service for Jacqueline Cochran, September 19, 1980]
Invitation to a memorial service for Jacqueline Cochran, by the Women Airforce Service Pilots of WWII, at Patrick Air Force Base in Cocoa Beach, Florida, on September 19, 1980, at 1:30 p.m.
Date:
1980~
Creator:
Women Airforce Service Pilots (U.S.)
Object Type:
Text
System:
The Portal to Texas History
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
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
Aerial Radiometric and Magnetic Survey: Bozeman National Topographic Map, Montana, Volume 2
This report presents radiometric and airborne survey data results taken for Bozeman quadrangle in Montana.
Date:
1979
Creator:
Geodata International
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Volume 2. Final Report: Hailey Quadrangle of Idaho
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Hailey quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.
Date:
December 1979
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Volume 2. Final Report: Idaho Falls Quadrangle of Idaho
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Idaho Falls quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.
Date:
October 1979
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Volume 2. Final Report: Elk City Quadrangle of Idaho/Montana
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Elk City quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.
Date:
November 1979
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Volume 2. Final Report: Boise Quadrangle of Idaho
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Boise quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.
Date:
October 1979
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Volume 1. Final Report: Hailey, Idaho Falls, Elk City Quadrangles of Idaho/Montana and Boise Quadrangle, Oregon/Idaho
Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Boise, Hailey, Idaho Falls, and Elk City quadrangles including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.
Date:
September 1979
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Engineering Report on the Drilling in the Missoula/Bitterroot Basins of Montana
"This report presents engineering details, statistics, individual borehole histories and geophysical logs of the seven holes drilled in the Missoula/Bitterroot Drilling Program." (from Introduction)
Date:
August 1979
Creator:
Bendix Field Engineering Corporation
Object Type:
Report
System:
The UNT Digital Library
Engineering Report on the Drilling in the Lemhi Pass Area of Montana
"This report presents engineering details, statistics, individual borehole histories, and geophysical logs of the four holes drilled in the Lemhi Pass, Montana/Idaho area." (from Introduction)
Date:
May 1980
Creator:
Abramiuk, I. N.
Object Type:
Report
System:
The UNT Digital Library
A Frontier Doctor
This autobiographical account of Dr. Henry Franklin Hoyt chronicles his family's history, his upbringing on a small farm in Minnesota, his work as a surgeon in New Mexico, Chicago, California, Texas and the Philippines, along with many other miscellaneous adventures.
Date:
1929
Creator:
Hoyt, Henry Franklin
Object Type:
Book
System:
The Portal to Texas History
Fighting Men of the Indian Wars: A Biographical Encyclopedia of the Mountain Men, Soldiers, Cowboys, and Pioneers Who Took Up Arms During America's Westward Expansion
This book "is a compendium of America's Indian Wars and the mountain men, soldiers, cowboys and pioneers who took part in them" (dust-jacket). It includes information about all the major American Indian battles, the lives of notable men who fought in the battles, and the combat techniques employed. The index begins on page 247.
Date:
1991
Creator:
O'Neal, Bill
Object Type:
Book
System:
The Portal to Texas History
[Letter from J. L. Truscott, July 28, 1893]
Letter from J.L. Truscott, Dealer in General Merchandise Glasgow, Montana stating that he had received a letter from Pless stating that he will be down the 1st and they should wait.
Date:
July 28, 1893
Creator:
Truscott, J. L.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Pleasant Price to Levi Perryman, July 10, 1908]
Letter from Pleasant Price in Great Falls, Montana to his stepfather, Levi Perryman. Discussing signing papers and lack of water in his area. Says he is gathering his horses the next day to move them 300 miles to area with water and grass. He is concerned about the colts and lack of water on the way.
Date:
July 10, 1908
Creator:
Price, Pleasant, Jr.
Object Type:
Letter
System:
The UNT Digital Library
Vereinigte Staaten von Nordamerika [Sheet 1]
Map shows state and territorial boundaries, railroads, canals, cities and towns, marshlands, and areas of Native American habitation. Relief shown by hachures and spot heights. Scale not given.
Date:
[1850..1863]
Creator:
Handtke, F. (Friedrich), 1815-1879
Object Type:
Map
System:
The Portal to Texas History