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- Geographic regions:
- West Virginia
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Results 11 - 14 of 14
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1/1/1977 - Reports of InvestigationsThis Bureau of Mines report describes photo-lineaments obtained from stereoscopic examination of vertical aerial photographs and by the ronchi grating study of aerial photoindex sheets. The photo- lineaments are compared with the trends of oriented frac...
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1/1/1975 - Reports of InvestigationsAs part of the Bureau of Mines methane control program, the Pittsburgh coalbed was studied in Washington and Greene Counties, Pennsylvania, and in Marion and Monongalia Counties, West Virginia, where this coalbed is now being mined at its greatest depth.
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1/1/1973 - Reports of InvestigationsThe Bureau of Mines is in the process of degasifying a virgin area in northern West Virginia from the base of an 839-foot-deep vertical borehole.
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1/1/1963 - Reports of InvestigationsTests were conducted in the Pocahontas No. 4 coalbed in southern West Virginia to determine if successful degasification techniques, developed during an earlier study in the Pittsburgh coalbed, would effectively remove methane from those usually more ga...
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Content source: National Institute for Occupational Safety and Health, Mining Program