Correlation of LANDSAT and air photo linears with roof control problems and geologic features
(Book)
Author
Contributors
Published
[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1983.
Physical Description
ii, 22 pages : illustrations ; 28 cm.
Status
Wyoming State Library - Microform Cabinets
I 28.23:8777
1 available
I 28.23:8777
1 available
Summary
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Copies
Location | Call Number | Status |
---|---|---|
Wyoming State Library - Microform Cabinets | I 28.23:8777 | On Shelf |
More Details
Published
[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1983.
Format
Book
Language
English
Notes
Bibliography
Includes bibliographical references (pages 21-22).
Summary
The Mine Safety and Health Administration (MSHA), U.S. Department of Labor, did a linear analysis for a new underground coal mine in Grant County, WV, through the interpretation of LANDSAT imagery and high-altitude, color-infrared aerial photography, to identify areas of potentially unstable roof in advance of mining. The Bureau of Mines included this mine in its ongoing study of the correlation between geologic features and linears. Three years after the analysis, after mining had progressed through the plotted linears, a cooperative Bureau-MSHA study evaluated the effectiveness of the linear plot in predicting areas of unstable roof and defined the geology associated with the linears. Adverse roof conditions at this mine include roof falls, potted-out roof, water inflow, and local areas requiring supplemental support. At the time of this study, 34 pct of the mine workings were within 200 ft of a plotted linear. Fifty percent of the adverse roof area in the mine occurred within this area. The primary geologic anomaly associated with the linears is an increased frequency of jointing. The majority of the plotted linears coincide with the prominent joint orientations. Additional features observed in the linear zones include roof rolls and a sandstone channel that cuts into the coal seam.
Citations
APA Citation, 7th Edition (style guide)
Jansky, J. H., & Valane, R. F. (1983). Correlation of LANDSAT and air photo linears with roof control problems and geologic features . U.S. Dept. of the Interior, Bureau of Mines.
Chicago / Turabian - Author Date Citation, 17th Edition (style guide)Jansky, Jacqueline H and Ronald F. Valane. 1983. Correlation of LANDSAT and Air Photo Linears With Roof Control Problems and Geologic Features. U.S. Dept. of the Interior, Bureau of Mines.
Chicago / Turabian - Humanities (Notes and Bibliography) Citation, 17th Edition (style guide)Jansky, Jacqueline H and Ronald F. Valane. Correlation of LANDSAT and Air Photo Linears With Roof Control Problems and Geologic Features U.S. Dept. of the Interior, Bureau of Mines, 1983.
MLA Citation, 9th Edition (style guide)Jansky, Jacqueline H., and Ronald F Valane. Correlation of LANDSAT and Air Photo Linears With Roof Control Problems and Geologic Features U.S. Dept. of the Interior, Bureau of Mines, 1983.
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