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Ohori mine (Ou'hori mine; Obori mine), Mogami, Yamagata Prefecture, Tohoku Region, Honshu Island, Japan

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Cu-Zn-bearing veinlets and dolerite dikes traversing Pb-Zn-bearing skarn formed from impure Mn-bearing Miocene limestone. The limestone bed is sandwiched between propylitized Miocene pyroclastics and andesitic or rhyolitic breccia. The skarn body itself was worked as Pb-Zn ore; the younger dolerite dikes as rich Cu-Zn ore.

Mineral List

Mineral list contains entries from the region specified including sub-localities


17 entries listed. 15 valid minerals.

Localities in this Region

Japan

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Geology and Mineral Resources of Japan, pp. 163, 182-183 (Geological Survey of Japan, 1960).
- Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., and Watanabe, Y. (2007): Mineral Resources Map of East Asia. Geological Survey of Japan.
- Yokoro, Y. and Nakashima, K. (2010): Ag-Cu-Pb-Bi-S Minerals Newly Discovered from the Ohori Base Metal Deposit, Yamagata Prefecture, NE Japan: Implications for Bi-metallogenesis in the Green-Tuff Region. Resource Geology, 60, 1-17.
Yokoro, Y., Hanamuro, T., & Nakashima, K. (2013). Unique Origin of Skarn at the Ohori Base Metal Deposit, Yamagata Prefecture, NE Japan: C, O and S Isotopic Study. Resource Geology, 63(4), 384-393.

Mineral and/or Locality  
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