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Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu Co., Dali Autonomous Prefecture, Yunnan Province, China

马厂箐(宝兴厂)铜钼金矿田, 弥渡县, 大理白族自治州, 云南省, 中国

Porphyry copper-molybdenum-gold deposits in alkali-rich porphyries of the Machangqing multi-stage composite pluton. The ore bodies are structurally controlled and consist of veins and fine veinlets in syenites, porphyroid alkali granites, Lower Ordovician hornstones and skarns. Altered rock type and karst-hosted laterite type gold mineralizations occur outside of the contact zone.

The ore field straddles the border between Midu and Xiangyun counties.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Actinolite
Albite
'Allanite'
Andradite
Anglesite
'Apatite'
Arsenopyrite
Azurite
'Biotite'
Bismuthinite
'Bitumen'
Bornite
Bournonite
Calcite
Cassiterite
Cerussite
Chalcocite
Chalcopyrite
'Chlorite Group'
Chromite
Covellite
Digenite
Diopside
Dolomite
Epidote
'Feldspar Group'
Galena
'Garnet'
Gold
var: Electrum
Graphite
Grossular
Hematite
var: Specularite
'Hornblende'
Humite
Ilmenite
Kaolinite
'K Feldspar'
'Limonite'
Magnetite
Malachite
Marcasite
Matildite
Microcline
Molybdenite
Monticellite
Muscovite
var: Sericite
Orthoclase
Phlogopite
Pyrite
Pyrrhotite
Quartz
Rutile
'Scapolite'
Scheelite
Silver
Smithsonite
Sphalerite
var: Marmatite
Stibnite
Tennantite
Tetrahedrite
Titanite
'Tourmaline'
Tremolite
Wollastonite
Zeolite Group
Zircon
Zoisite


71 entries listed. 55 valid minerals.

Localities in this Region

China

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References

Yunnan Metallurgical Geology Team No. 310 (1977): Geological characteristics and prospecting directions of the Machangqing porphyry Cu-Mo deposit. Geology and Prospecting 13(2), 20-28 (in Chinese).

Ren, Z. (1997): Tectono-stratigraphic terrane analysis and metallization in Yunnan, China, in: Pei, R., ed., Energy and mineral resources for the 21st century, geology of mineral deposits, mineral economics. Proceedings of the 30th International Geological Congress, VSP, Utrecht, p. 47-55.

Peng, Z., Watanabe, M., Hoshino, K., Sueoka, S., Yano, T., and Nishido, H. (1998): The Machangqing copper-molybdenum deposits, Yunnan, China - an example of Himalayan porphyry-hosted Cu-Mo mineralization. Mineralogy and Petrology 63, 95-117.

Hu, R., Burnard, P.G., Turner, G., and Bi, X. (1998): Helium and Argon isotope systematics in fluid inclusions of Machangqing copper deposit in west Yunnan province, China. Chemical Geology 146(1), 55-63.

Bi Xianwu, Hu Ruizhong, Ye Zaojun, and Shao Shuxun (2000): Relations between A-type granites and copper mineralization as exemplified by the Machangqing Cu deposit. Science in China, Series D (Earth Sciences), 43(1), 93-102.

Liangsheng Ge, Yilin Zou, Zhenhua Li, Xiaodong Gue, Junbing Xing, and Xiaohui Zhang (2002): Geological features and genesis of Machangqing Cu-Mo-Au deposits related to alkali-rich magmatic rocks, Yunnan Province. Geology and Prospecting 38(5), 11-17.

Xianwu Bi, Ruizhong Hu, Jiantang Peng, Li Liu, Kaixing Wu, and Wenchao Su (2006): Geochemical characteristics of the Yao'an and Machangqing alkaline-rich intrusions in the Ailaoshan-Jinshajiang belt, Western Yunnan, China. Geochimica et Cosmochimica Acta Supplement 70(18), 712.

Zengqian Hou, Pusheng Zeng, Yongfeng Gao, Andao Du, and Deming Fu (2006): Himalayan Cu-Mo-Au mineralization in the eastern Indo-Asian collision zone: constraints from Re-Os dating of molybdenite. Mineralium Deposita 41, 33-45.

Shaoming Wang and Zhengzhong He (2007): The metallogenetic model of Baoxingchang Au deposit in Midu, Yunnan. Yunnan Geology 26(3), 289-297.

Singer, D.A., Berger, V.I., and Moring, B.C. (2008): Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. US Geological Survey Open-File Report 2008-1155.

Zhihua Wang, Xiaodong Guo, Liangsheng Ge, Keqiang Wang, Yiling Zhou, Yong Zhang, and Wanqiang Yu (2009): Geochemistry of the Machangqing alkaline-rich porphyry in Xiangyun, Yunnan Province. Geology and Exploration 45(4), 343-351.

Zhihua Wang, Xiaodong Guo, Wanqiang Yu, Yiling Zhou, Tao Xu, and Yong Zhang (2010): Geological festures and mineralization rules of the Machangqing Cu-Mo-Au multiple-metallic deposit, Yunnan Province. Geology and Exploration 46(2), 214-223.

Xiaodong Guo, Liang Wang, Jiapan Yan, Xueying Su, and Yang Liu (2010): Analysis on ore-forming conditions and ore-search direction of the Machangqing copper-molybdenum-gold deposit in Yunnan Province. Geology and Exploration 46(suppl.), 1168-1177.

Zhihua Wang, Xiaodong Guo, Liangsheng Ge, Xiang Chen, Junjie Fan, and Tao Xu (2010): Mineralization recognition of the Machangqing polymetallic deposit in Yunnan Province. Geology and Exploration 46(suppl.), 1186-1198.

Yi Min and Guoqu Li (2010): Alkaline-rich porphyries hydrothermal ore-forming system analysis and choice of ore-searching methods: A case study of the Baoxingchang ore district in Yunnan Province. Geology and Exploration 46(suppl.), 1242-1248.

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