Roof control of stress-relief jointing near outcrops in central Appalachian drift coal mines
By: by Gary P. Sames and Noel N. Moebs
Contributors: Moebs, Noel N; United States. Bureau of Mines
Series: Information circular -- 9313; Information circular (United States. Bureau of Mines) -- 9313
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1992
Place of publication: Washington, D.C
Language: eng
Format: Microform
Subjects: Mine roof control; Joints (Geology) -- Appalachian Region; Outcrops (Geology) -- Appalachian Region; Coal mines and mining -- Appalachian Region
Notes: Distributed to depository libraries in microfiche

Shipping list no.: 92-1998-M

Includes bibliographical references (p.11)

Microfiche. [Washington, D.C. : Supt. of Docs., U.S. G.P.O., 1992] 1 microfiche