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Subsidence over four room-and-pillar sections in southwestern Pennsylvania

Electrical properties and attenuation distance of upper Pennsylvanian coal measure rock from southwestern Pennsylvania

Published Year

• 1980-1989 (2) *

Subject

• Coal mines and mining--Pennsylvania--Safety measures (2) *
• Geology--Pennsylvania (1)
• Ground penetrating radar (1)
• Mine subsidences--Pennsylvania--Measurement (1)
• Rocks--Electric properties--Pennsylvania (1)

Author

• Dehler, Andrew L. (1)
• Lindroth, David P. (1)
• Moebs, Noel N. (1)
• Wingquist, Carl F. (1)

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