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

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:

MARC

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100 1 |a Kertis, Carla A. 
245 1 0 |a Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes /  |c by Carla A. Kertis. 
264 1 |a [Pittsburgh, Pa.] :  |b U.S. Dept. of the Interior, Bureau of Mines,  |c 1985. 
300 |a 23 pages :  |b illustrations, maps ;  |c 28 cm. 
336 |a text  |b txt  |2 rdacontent 
337 |a unmediated  |b n  |2 rdamedia 
338 |a volume  |b nc  |2 rdacarrier 
490 1 |a Report of investigations ;  |v 8987 
500 |a Distributed to depository libraries in microfiche. 
504 |a Bibliography: pages 21-23. 
650 0 |a Coal  |x Geology  |z Pennsylvania  |z Indiana County. 
650 0 |a Coal  |x Geology  |z Pennsylvania  |z Armstrong County. 
650 0 |a River channels. 
650 0 |a Coal mines and mining  |z Pennsylvania  |z Indiana County  |x Safety measures. 
650 0 |a Coal mines and mining  |z Pennsylvania  |z Armstrong County  |x Safety measures. 
710 1 |a United States.  |b Bureau of Mines. 
830 0 |a Report of investigations (United States. Bureau of Mines) ;  |v 8987. 
999 |a MARS 
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