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Author

Kertis, Carla A.

Title Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes [electronic resource] / by Carla A. Kertis.

Imprint

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1985]

Connect to
Connect to https://permanent.fdlp.gov/lps98493/ri8987.pdf

Copies

Location	Call No.	OPAC Message	Status
Axe Federal Documents Online	HE 20.7131:8987	---	Available

Description	23 p. : digital, PDF file
Series	Report of investigations ; 8987
	Report of investigations (United States. Bureau of Mines) ; 8987.
System Details	Mode of access: Internet at the National Institute for Occupational Safety and Health web site.
Note	Title from title screen (viewed on July 28, 2008).
Subject	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.
Added Author	United States. Bureau of Mines.
Other Form:	Kertis, Carla A. Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes 23 p. (DLC) 85600080 (OCoLC)11971535
Gpo Item No.	0499-F-22 (online)
Sudoc No.	HE 20.7131:8987