Shangbao Mine, Leiyang Co., Hengyang Prefecture, Hunan Province, China

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上堡矿, 耒阳市, 衡阳市, 湖南省, 中国

Skarn-type polymetallic (iron, tungsten, tin) deposit, occurring in the contact zone between Carboniferous and Permian limestones and a Jurassic granite stock, which also hosts separate niobium-tantalum ore bodies. The iron skarn was discovered during an exploration campaign carried out between 1959 and 1964, but the full potential of the deposit was initially not recognized since prospection had been focused on pyrite ores only. During a field study on granite geology carried out in the area between 1969 and 1971, niobium-tantalum ore bodies were discovered in the weathering crust of the granite, and recent exploration drilling in the mine area intersected economic skarn-type tungsten-tin mineralization. A comprehensive multi-element prospection of the deposit area is still lacking, though (Lei et al., 2009)

References

- Zhengmin Cao (1981): A study on allevardite discovered in China. Acta Mineralogica Sinica 1(3), 180-185.
- Dengfeng Tu (1984): Inclusions in minerals in the Shangbao pyrite district, Hunan. Dizhi Lumping 30(3), 270-274 (in Chinese).
- Xiangli Chen, Yanhui Jin, and Ciguo Xie (2003): Occurrence of niobium and tantalum in the Nb-Ta deposit in weathered granite crust at Shangbao, Leiyang, Hunan Province. Acta Mineralogica Sinica 23(4), 323-326 (in Chinese with English abstract).
- Zeheng Lei, Yusheng Qiao, and Yiming Xu (2009): W-Sn Mineralization Characteristics and Exploration Potential of the Shangbao Mineral District, Hunan Province. Geology and Exploration 45(2), 44-52.

Mineral List

Albite 'Allevardite' 'Apatite' Biotite Bismuthinite Calcite Cassiterite Chalcopyrite 'Chlorite Group' Columbite

Diopside Dolomite Epidote 'Fergusonite' Fluorite 'Garnet' Kaolinite 'K Feldspar' Lepidolite Magnetite

Microlite Group 'Monazite' Muscovite var: Sericite Phlogopite Pyrite Pyrrhotite Quartz var: Chert Rutile var: Niobian Rutile Scheelite

Sphalerite Spinel Tantalite Topaz 'Tourmaline' Tremolite Vesuvianite Wolframite Zinnwaldite Zircon

40 entries listed. 24 valid minerals.