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

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English: Plate XXVIII from The Geology of the Richmond Basin published by USGS, which has the following caption:
Bowlder of fine conglomerate in basal Newark beds, western border (of Richmond Basin), south of Mosley Junction.
The text of the report refers to the figure as follows:
Near the base of the Newark, at the western margin, south of Mosley Junction, where the beds turn westward on the Irwin Bass place, there is a small pothole or channel eroded in the red shales and filled with gray sands marking an unconformity. In a succeeding layer of the red shale is a 10-inch bowlder of the coarse sandstone derived from the erosion of the pebble beds already laid down in the basin (see Pl. XXVIII).
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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