Side of strip pit, Dunbar coal mine. 5 miles West and 1/2 mile North of Thayer
Measured By R.E. Whitla, 8/1/1939
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| Unit No. |
Description |
Thickness |
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6
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Weathered limestone
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5
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Shale, weathers to a buff, or yellowish brown cl
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2 ft.
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4
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Black, carbonaceous shale
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1 ft.
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3
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Limestone, lower part is sandy
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1.5 ft.
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2
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Bluish-gray sandstone. Contains fern and other plant fossils. A thin, papery shale asa much as 2 inches thick in some places at the bottom
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5 - 6 ft.
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1
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Thayer coal. 2 - 4 inches clay parting about 9 inches below top of coal. Pyrite nodules near top of lower part of coal
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1.5 ft.
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