Technical Report Archive & Image Library (TRAIL) - 6 Matching Results
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- Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses
- From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
- Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
- From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
- Core-Drilling Testing for Base-Metal Mineralization Below the Hope Silver Mines, Granite County, Montana
- 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.
- Investigation of Manganese Deposits in the Philipsburg Mining District, Granite County, Montana
- Report issued by the U.S. Bureau of Mines on the manganese deposits near Granite County, Montana. It reviews the mining history and geology of the Philipsburg district. The report includes maps and tables.
- Lead-Zinc Deposits of the Dunkleberg District, Granite County, Montana
- Report issued by the Bureau of Mines over studies conducted on lead-zinc deposits of Montana. The results of the studies are presented. This report includes tables, maps, and illustrations.
- Tungsten Resources of Montana: Deposits of the Philipsburg Batholith, Granite and Deer Lodge Counties
- Report issued by the Bureau of Mines over tungsten deposits of Montana. Details of the different deposits throughout the region are presented. This report includes tables, maps, and illustrations.