Technical Report Archive & Image Library (TRAIL) - 4 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."
- Estimate of Known Recoverable Reserves of Coking Coal in Jefferson County, Pennsylvania
- Report of investigations issued by the U.S. Bureau of Mines evaluating the known reserves of coking coal in Jefferson County, Pennsylvania. The properties of coal and coal blends from the area are analyzed. This report includes tables, and maps.
- Radioactivity of Coals and Associated Rocks in Beaver, Clearfield, and Jefferson Counties, Pennsylvania
- Report discussing the investigation of radioactivity in coal beds and associated rocks from the Pottsville, Allegheny, and Conemaugh formations in Beaver, Clearfield, and Jefferson counties, Pennsylvania. The report provides information regarding the procedures used, descriptive geology of the areas, radioactivity data, factors affecting the occurrence of radioactivity, and a summary.
- Sedimentation in the East Branch Mahoning Creek Basin, Clearfield and Jefferson Counties, Pennsylvania, June 1979 to June 1980
- From introduction: This report contains the findings of the first full year of data collected as part of a 3-year study to measure sediment discharges in the East Branch Mahoning Creek during installation of erosion and sedimentation controls by the surface miners.