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File:Geology of the Richmond Basin 1899 Plate XXIV.jpg

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Description
English: Plate XXIV from The Geology of the Richmond Basin published by USGS, which has the following caption:
Plan and Section of Raccoon Coal Mine, near Winterpock. (After Clifford.)
The text of the report refers to this figure as follows:
The Raccoon shaft.—The accompanying plate, reproduced from a paper by Mr. Clifford, sets forth all the known information concerning the abandoned Raccoon shaft, on the eastern margin, near the Appomattox River (see PL XXIV). The middle seam in this section is the thickest, the coal-bearing beds being comprised within 100 feet of strata. The pinches or rolls where the basement rock takes the place of the coal beds is well shown in the section. A similar disturbance of the section was observable in a slope driven through the old workings of the Cox shaft at Winterpock in 1896.
Date
Source Nathaniel Southgate Shaler and Jay Backus Woodworth, 1899. Geology of the Richmond Basin, Virginia. U.S. Government Printing Office. United States Geological Survey.
Author USGS

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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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