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Title: GEOLOGIC SETTING OF LANDSLIDES ALONG SOUTH SLOPE OF PINE MOUNTAIN, KENTUCKY
Accession Number: 00229916
Record Type: Component
Abstract: LANDSLIDES ALONG THE SOUTH SLOPE OF PINE MOUNTAIN IN SOUTHEASTERN KENTUCKY ARE INTEGRALLY RELATED TO BEDROCK GEOLOGY. MOST OF THE SLIDES ARE PLANAR BLOCK GLIDES OF SANDSTONE AND INTERBEDDED SHALE AND SILTSTONE THAT HAVE SLID DOWN DIP SLOPES ON FLOORS OF SHALE, COAL, OR UNDERCLAY. THE CENTRAL PORTION OF A 1/2-MILE WIDE SLIDE THAT HAD BEEN STABLE FOR MANY YEARS RECENTLY SLID WHEN THE TOE WAS CUT INTO DURING HIGHWAY CONSTRUCTION. THE OLD SLIDE PROBABLY ORIGINATED AS A PLANAR BLOCK GLIDE, BUT IT DEVELOPED ROTATIONAL ASPECTS AT THE TOE AND FLANKS. STRATA UNDERLYING THE SOUTH SLOPE OF PINE MOUNTAIN ARE OF PENNSYLVANIAN AGE AND INCLUDE MASSIVE SANDSTONE, INTERBEDDED SILTSTONE AND SHALE, AND THIN BEDS OF COAL AND UNDERCLAY. BEDS DIP GENERALLY SOUTHEASTWARD BUT FLATTEN ABRUPTLY AT THE FOOT OF THE MOUNTAIN AND ARE NEARLY HORIZONTAL SOUTH OF IT. THE CUMBERLAND RIVER FOLLOWS THIS FLEXURE ALONG MUCH OF PINE MOUNTAIN AND IN MANY PLACES CUTS LATERALLY AGAINST THE DIPPING BEDS. LANDSLIDES HAVE REPEATEDLY OCCURRED AND OTHERS MAY OCCUR WHERE DIPPING STRATA OF PINE MOUNTAIN ARE UNDERCUT BY RIVERS OR BY CONSTRUCTION WORK. OLD BUT PRESENTLY STABLE SLIDES MAY BE REACTIVATED WHEN CUT INTO BY HIGHWAY OR OTHER EXCAVATIONS. /AUTHOR/
Supplemental Notes: Paper sponsored by Committee on Engineering Geology and presented at the 49th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Accession #: 01410262
Authors: Froelich, Albert JPagination: pp 1-5
Publication Date: 1970
Serial: Media Type: Print
Features: Figures
(10)
; References
(2)
TRT Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways
Files: TRIS, TRB
Created Date: May 3 1971 12:00AM
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