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Geologic factors in coal mine roof stability :a progress report

Coal mine roof instability :categories and causes

Case evaluation of a surface seismic reflection technique for delineating coalbed discontinuities

Published Year

• 1980-1989 (3) *

Subject

• Coal--Geology (3) *
• Coal mines and mining--Safety measures (2)
• Mine roof control (2)
• River channels (1)
• Seismic reflection method (1)

Author

• Moebs, Noel N. (2)
• Stateham, Raymond M. (2)
• Ingram, David K. (1)
• Molinda, G. M. (1)

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