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Lithologic description of core material from Nicholas Combs No. 7239 well, Perry County, Kentucky

Author
Byrer, C. W.
Published
United States : [publisher not identified], 1976.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1976.
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Trumbo, D. B.

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Summary
The core section which is being studied here is the Devonian Shale. The total thickness of the shale in this region is approximately 400 feet. The top of the cored section begins at 2369.0 feet and ends at 2708.0 feet. The total length of the core is 339.0 feet. Analysis of this core shows that the top portion (approximately 60 feet) is a medium dark grey shale. A prominent vertical fracture extends almost continuously through this segment. Numerous pyritic nodules and silty stringers are evident throughout. Oblique 60/sup 0/ fractures are found in this interval and throughout the entire core. The middle section contains zones (3 inches to 4 feet in thickness) of darker shale which apparently have higher organic content than the shale described above. This middle segment of the core is approximately 240 feet in length. Many intervals reveal slickensides, many of which are mineral filled. Mineral filled worm burrows are evident along with many carbonaceous fossil fragments. The bottom 40 feet of this core is relatively uniform in composition and appearance. A light medium grey texture is prevalent in this shale segment. There are no vertical fractures, but numerous bedding plane fractures are evident. The bottom segment of this core is characterized by very little pyrite, very few organic zones, very few slickensides, very few worm burrows, and very little carbonaceous fossil material. The ..gamma.. ray log shows zones of high radioactivity in the shales from 2590 feet to 2665 feet. These zones can usually be correlated over rather wide areas. The core generally shows these to be dark organic rich shale beds.
Report Numbers
MERC/TPR-76/2
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
OSTI Identifier 7354110
Research organization: Energy Research and Development Administration, Morgantown, W.Va. (USA). Morgantown Energy Research Center.
View MARC record | catkey: 45894896