Technical Report Archive & Image Library (TRAIL) - 7 Matching Results
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- Coal-Mine Accidents in the United States and Foreign Countries
- From Introduction: "The lack of comparable and accurate statistics of coal-mine accidents in the united States as a whole led the Bureau of Mines in 1911 to undertake the collection of such data. The mining departments of the leading foreign coal-producing countries have long taken cognizance of the importance of statistics. The bureau feels that in presenting the tables embodied in this report it is offering the and comparable statistics of coal-min accidents for the country as a whole that have ever been published."
- Contributions to Astrogeology, 1967-71
- From contributions of astrogeology: The principal goal of research in astrogeology is the solution of several cardinal problems of geology...The present volume is the first of a series of professional papers that will describe major results of research in astrogeology.
- The Distribution of Calcretes and Gypcretes in Southwestern United States and Their Uranium Favorability: Based on a Study of Deposits in Western Australia and South West Africa (Namibia)
- From summary: The procedure has been to search for areas in which nonpedogenic calcrete or gypcrete may have developed and where additional study or exploration might be justified.
- Drilling and Dustiness of Metal-Mine Air
- Report issued by the U.S. Bureau of Mines on the air quality in metal-mines after using wet drills. Dust samples are collected and compared to samples collected from similar metal-mines in South Africa and Australia. This report includes tables.
- The History and Development of Gold Dredging in Montana: with a Chapter on Placer-Mining Methods and Operating Costs
- From Introduction: "Although the purpose of this paper is to describe gold dredging in Montana, a brief mention of some early appliances used in New Zealand, Australia, and California may serve as a world-connecting link in our consideration of the development of gold dredging."
- Survey of Fallout Operations
- From Abstract: "The Laboratory has made a survey of fallout operations in the various countries of the world. The source of information has largely been the reports submitted to UNSCEAR forwarding data for their consideration. The abstracts are given in order of type of operation as shown in the table of contents."
- World Survey of Tantalum Ore
- Report issued by the U.S. Bureau of Mines discussing the occurrences of tantalum in different areas of the world. The tantalum deposits are described in reference to each individual country that it is found in. This report includes maps, tables, and illustrations.