Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes /

Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes /

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Bibliographic Details
Main Author: Kertis, Carla A.
Corporate Author: United States. Bureau of Mines
Format: Government Document Book
Language:English
Published: [Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, 1985.
Series:Report of investigations (United States. Bureau of Mines) ; 8987.
Subjects:
Coal > Geology > Pennsylvania > Indiana County.
Coal > Geology > Pennsylvania > Armstrong County.
River channels.
Coal mines and mining > Pennsylvania > Indiana County > Safety measures.
Coal mines and mining > Pennsylvania > Armstrong County > Safety measures.
Description
Item Description:Distributed to depository libraries in microfiche.
Physical Description:23 pages : illustrations, maps ; 28 cm.
Bibliography:Bibliography: pages 21-23.