Marine chemical sedimentary phosphorite-Mn carbonate deposit, hosted in Late Proterozoic black phyllites and dolostones.
Ref.:
- Liu Tiebing, Fan Delian, and Ye Jie (1996): Origin of the black shale-hosted Chadian phosphorus-manganese deposit, Shaanxi Province, China. Economic Geology 91(1), 48-54.
- Orris, G.J., and Chernoff, C.B. (2002): Data set of world phosphate mines, deposits and occurrences. USGS Open-File Report 02-156.
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Map Reference: 33°11'47"N , 106°27'41"E
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