Report issued by the Bureau of Mines on the anthracite coal in the Bottom Red Ash Bed in Pennsylvania. The coal samples were analyzed for thickness and geologic structure. The amount of recoverable coal was also estimated. This report includes tables, maps, and illustrations.
Report issued by the Bureau of Mines over a study on "stress determinations in an area known to be under high stress concentration induced by prior mining operations" (p. 2). The geology, procedures, and instrumentation are discussed. This report includes tables, illustrations, and photographs.
From introduction: "This report contains the results of measurements to obtain the heats of formation of forsterite and chrysotile; entropies at 298.15 K of two polymorphs of serpentine, chrysotile and antigorite; and high temberature heat content increments for antigorite. These results have been combined with other pertinent data to derive heat and free energy values at high temperatures."
This dialog allows you to filter your current search.
Each of the World Regions listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Countries listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the U.S. States listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Counties listed note their name and the number of records that will be limited down to if you choose that option.
This dialog allows you to filter your current search.
Each of the Months listed note their name and the number of records that will be limited down to if you choose that option.