File:Bulletin 798 Plate10A Unconformable Contact between Pliocene Beds and Horse Spring Formation.jpg

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Description	English: Unconformable Contact between Pliocene (?) Beds (Muddy Creek Formation) and Horse Spring Formation in Kaolin Wash.
Date	1928
Source	U.S. Geological Survey Bulletin 798, Geology of the Muddy Mountains, Nevada, with a section through the Virgin Range to the Grand Wash Cliffs, Arizona. By Chester R. Longwell. 1928. U.S. Government Printing Office, 152 p. ill., col. map (fold.); 23 cm. web version
Author	USGS

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