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Sain Usu Au deposit (Saiwusu Au deposit), Darhan Muminggan United Banner (Da'erhan Maoming'an Lianheqi), Baotou League (Baotou Prefecture), Inner Mongolia Autonomous Region, China

Latitude: 41°50'N
Longitude: 109°59'E
赛乌素金矿床, 达尔罕茂明安, 包头市, 内蒙古自治区, 中国

Quartz vein and fractured altered rock type gold deposit, related to a granitoid intrusion. The ore bodies are hosted in a syncline, the core of which is composed of shale of the Bilute Formation and the limbs of siliceous crystalline limestone of the Halahuote Formation. Both formations belong to the Proterozoic Bayan Obo Group. The core is intruded by an ellipsoid Hercynian granite. Quartz and sulphide veins are related to a series of NW-trending fracture zones. The deposit minerals occur in stockworks and masses.

Mineral List

Arsenopyrite
'Biotite'
Calcite
Chalcopyrite
'Chlorite Group'
Covellite
Epidote
Galena
Goethite
Gold
var: Electrum
Hematite
Illite
Jarosite
Kaolinite
'Limonite'
Marcasite
Microcline
Muscovite
var: Sericite
Orthoclase
Pyrite
Pyrrhotite
Quartz
Silver
Sphalerite
var: Marmatite


27 entries listed. 21 valid minerals.

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References

Hui Li, Mili Ren, Hao Zheng, and Yuzeng He (1988): Some geochemical features and exploration guides of the Saiwusu gold deposit. Geology and Prospecting 24(12), 45-50, 60.

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.

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.

Xuequan Zhang, Hongfei Hu,and Ping Liu (2007): Geological features and prospecting forecast of the Saiwusu gold deposit, Inner Mongolia. Geology and Prospecting 43(4), 36-40.

Hongfei Hu, Pin Liu, Xiaowu Chen, Huanying Sun, and Ming Dong (2010): Mineralization characteristics and prospecting direction of gold deposits in northern Bayan Obo, Inner Mongolia. Geology and Exploration 46(suppl.), 1272-1277.

External Links


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