Thin bedded manganese oxide deposits interbedded with the reddish brown, Miocene Chapin Wash Sandstone in the Artillery Mountains, Mohave County, Arizona. Whitish material associated with manganese oxides is unidentified.
Online resources:
Artillery Peak Manganese deposits, Mohave County, Arizona R.I. 4275 (1948) 59 p. https://library.azgs.arizona.edu/item/BMRI-1552428921627-817
Spencer, J.E. and others., 2015, Geologic map of the Artillery and Rawhide Wash 7.5' minute Quadrangles, Mohave and La Paz Counties, Arizona, Arizona Geological Survey Digital Geologic Map, DGM-100 v 2.0, 1:24,000 map scale, 2 map sheets. https://library.azgs.arizona.edu/item/ADGM-1552427876957-992
Photographer: Jon Spencer
Photo Date: 2012