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Geologic Factors in Predicting Coal Mine Roof-Rock Stability in the Upper Kittanning Coalbed, Somerset County, Pennsylvania

Published Year

• 1980-1989 (1) *

Subject

• Coal mines and mining -- Pennsylvania -- Somerset County -- Safety measures. (1)
• Geology, Stratigraphic. (1) *
• Mine roof control. (1)
• Rock mechanics -- Pennsylvania -- Somerset County. (1)

Author

• Hyman, D. M. (1) *
• Iannacchione, A. T. (1)
• Ulery, J. P. (1)

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