Shale from
USA | |
| Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143. RME-2071: 110. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
| Corey, A. S. (1958). Petrography of the uranium and vanadium ores of the Nelson Point No. 1 mine, San Juan County, New Mexico (Doctoral dissertation, Colorado Mesa University. Tomlinson Library). |