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Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
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Lenticular pods of black shale up to 3 feet thick made up the roof over much of the mine. In some cases, about 5 feet of limestone was over the black shale. “Soapstone”, a very clay-rich shale, was the rock above the limestone. When the limestone came down, the soapstone would also fail. One fall extended 35 feet upwards. Numerous clay veins were present in the coal, some 2 feet wide. At least one clay vein was associated with a slip where the coal was shattered for 1 foot on either side. A small fault with 1.5 feet offset was found ¼ mile east of the shaft. Pyrite lenses were present along bedding planes. The underclay floor was 7 feet of fairly soft clay, with a firmer clay below that contained boulders. The upper part heaved, especially the top 1.5 feet. The mine map shows that old works of the Athens-Dawson Mine (mine index 2939) were encountered in the southern part of the eastern extensions of this mine.
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