Wulashan Au deposit, Wulashan Mining District, Binhe New District, Baotou League (Baotou Prefecture), Inner Mongolia Autonomous Region, China

• Display
  • Standard
  • Detailed
  • By Strunz Category
  • By Dana Category
• Photos
  • Add Photo
• Maps
  • Map Pages
• Search
  • Mineral Search
  • Search Google

Large-scale potassium metasomatite (Kuranakh type), hosted in Archean and Proterozoic metamorphic rocks and Paleozoic and Mesozoic granite, east of the Dahuabei intrusion. There are three types of veins occuring along the bedding and schistosity of metamorphic rocks: quartz-K feldspar veins, quartz veins and gold-bearing carbonate-chalcedony veins. The main alterations in the vicinity of the veins include K feldspar alteration, silica alteration, pyrite alteration, carbonate alteration, sericite alteration, kaolinite alteration and chlorite alteration. The deposit is interpreted as related to magmatic hydrothermal fluids derived from the Dahuabei intrusion and related dykes. Gold was probably leached out of the Archean metamorphic rock; its deposition time is probably Paleozoic and Mesozoic.

References

- Econ. Geol. (1994) 89:1289-1305.
- Hart, C.J.R., Goldfarb, R.J., Yumin Qiu, Snee, L., Miller, L.D., and Miller, M.L. (2002): Gold deposits of the northern margin of the North China Craton: multiple late Paleozoic-Mesozoic mineralizing events. Mineralium Deposita 37, 326-351.
- Fengjun Nie, Sihong Jiang, Xinxu Su, and Xinliang Wang (2002): Geological features and origin of gold deposits occurring in the Baotou–Bayan Obo district, south-central Inner Mongolia, People’s Republic of China. Ore Geology Reviews 20, 139-169.
- Nie, F.-J., Jiang, S.-H., and Liu Y. (2004): Intrusion-Related Gold Deposits of North China Craton, People's Republic of China. Resource Geology 54(3), 299-324.

Mineral List

Altaite Ankerite 'Apatite' Arsenopyrite Bismuthinite Bismutite Calaverite Calcite Cerussite Chalcopyrite 'Chlorite Group' Covellite

Dyscrasite Epidote Galena Goethite Gold var: Electrum Hematite var: Specularite 'Hornblende' Jarosite Lepidocrocite Leucoxene

Limonite Magnetite var: Titaniferous Magnetite Malachite Melonite Microcline Molybdenite Muscovite var: Sericite Orthoclase 'Perthite' Petzite 'Psilomelane'

Pyrite Quartz var: Chalcedony Sanidine Siderite Sphalerite Sylvanite Titanite Xenotime-(Y)

45 entries listed. 33 valid minerals.