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Delineation of Geologic Roof Hazards in Selected Coal Beds in Eastern Kentucky With Landsat Imagery Studies in Eastern Kentucky and the Dunkard Basin.

Authors
Hylbert-DK
Source
NTIS: PB/82-140336 :100 pages
Link
NIOSHTIC No.
10002259
Abstract
This study investigated stratigraphic and structural causes of roof falls in room-and-pillar drift coal mines in nine mines in eastern Kentucky. A contract modification provided for remote sensing studies in the Dunkard Basin of West Virginia and Pennsylvania. Results of stratigraphic and structural studies of an earlier study were applied to several new mines. It was found that similar rock sequences contributed to unstable roof conditions. Structure contour and isopach maps were useful in projecting these trends together with fence diagrams. Using landsat imagery, a direct relationship was found between lineament direction and the trends of rock jointing, roof fall zones, "snap top" zones, and sandstone channels. From 50 to 65 percent coincided with roof falls when lineament intersections were analyzed.
Publication Date
19800101
Document Type
CP; Final Contract Report;
Fiscal Year
1980
NTIS Accession No.
PB82-140336
NTIS Price
A06
Identifying No.
OFR 166-81
NIOSH Division
PRC;
Source Name
NTIS: PB/82-140336
State
KY; PA; WV;
Performing Organization
Morehead State University
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