Technical Report Archive & Image Library (TRAIL) - 427 Matching Results

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The Flathead Tunnel: A Geologic, Operations, and Ground Support Study, Burlington Northern Railroad, Salish Mountains, Montana

Description: Report issued by the U.S. Bureau of Mines discussing the Flathead Tunnel in Montana. As stated in the introduction, "this information circular is a Bureau of Mines review of tunneling practices typical of the late 1960's. The report provides reference to all pertinent data related to the geology, mining operations, and ground support practices for the Flathead Tunnel" (p. 2). This report includes maps, tables, illustrations, and photographs.
Date: 1974
Creator: Skinner, Eugene H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Core-Drilling Testing for Base-Metal Mineralization Below the Hope Silver Mines, Granite County, Montana

Description: Report issued by the Bureau of Mines over base-metal testing conducted in Granite County, Montana. Descriptions of the deposits, geology, and the factual data obtained during testing are presented. This report includes tables, maps, and illustrations.
Date: February 1949
Creator: Cole, John W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Sheep Creek Iron Deposits Meagher County, Montana

Description: Report issued by the Bureau of Mines regarding studies conducted on iron deposits located in Meagher County, Montana. As noted in the introduction, "details of geology, sampling, and beneficiation tests are presented in this report" (p. 1). This report includes tables, maps, and illustrations.
Date: January 1949
Creator: Reed, Glenn C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of Big Ben Molybdenum Deposit, Neihart District, Cascade County, Montana

Description: Report issued by the Bureau of Mines over studies conducted on molybdenum deposits in the Neihart District of Cascade County. As stated in the introduction, "this report describes the deposit, presents the factual data obtained from the sampling and core-drilling operations, and summarizes the results of the metallurgical studies" (p. 2). This report includes tables, maps, and illustrations.
Date: February 1949
Creator: Herdlick, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of Whiteware Clay Deposit, Fergus County, Montana

Description: Report issued by the Bureau of Mines over studies conducted on the Whiteware clay deposit. As stated in the introduction, "this report presents the factual data obtained by the investigation, which also includes data on trenching and drilling, and the results of some refractory tests and chemical analyses of representative samples of the clay later taken from some of the best trench exposures and from adit dumps" (p. 1-2). This report includes tables, maps, and illustrations.
Date: March 1949
Creator: Roby, R. N. & Robertson, Almon F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Variable Characteristics of the Oil in the Tensleep Sandstone Reservoir, Elk Basin Field, Wyoming and Montana

Description: Report issued by the U.S. Bureau of Mines on the characteristics of oil obtained from the Tensleep Sandstone Reservoir. The samples collected are analyzed for physical characteristics and presented in tables and graphs. The report also includes a map.
Date: April 1951
Creator: Espach, Ralph H. & Fry, Joseph
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tungsten Resources of Montana: Deposits of the Mount Torrey Batholith, Beaverhead County

Description: Report issued by the Bureau of Mines over the tungsten deposits on Beaverhead County, Montana. As stated in the introduction, "this report presents information obtained from July 1955 to September 1957 on tungsten deposits in and near the Mount Torrey batholith" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1960
Creator: Pattee, Eldon C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geology of the Clark Fork Quadrangle Idaho-Montana

Description: A report about the Clark Fork quadrangle which is underlain by more than 38,000 feet of low-grade metasedimentary rocks of the Precambrian Belt series. The quadrangle has both metallic and nonmetallic mineral deposits of considerable value.
Date: 1963
Creator: Harrison, J. E. & Jobin, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chronology of Late Cretaceous Igneous and Hydrothermal Events at the Golden Sunlight Gold-Silver Breccia Pipe, Southwestern Montana

Description: 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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mineralogy of Uranium-Bearing Deposits in the Boulder Batholith, Montana: Final Report, July 1, 1952 to December 31, 1956

Description: 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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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