马拉格锡矿田, 东矿区, 个旧锡多金属矿田, 个旧市, 红河哈尼族彝族自治州, 云南省, 中国
Tin deposits in the northeastern part of the Gejiu ore field, hosted in Middle Triassic marine carbonates, and associated with late Yanshannian (Cretaceous) 120 to 65 Ma granitoids (an early 90.4 ±6.3 Ma porphyritic granite and a late 81 ±4.9 Ma equigranular granite). Ore is found in tin-bearing skarns in the aureole of the porphyritic granites and as hydrothermal tin-polymetallic mineralizations within faults overlapping with and distal from the skarn and granite bodies. Deposits in the Malage ore field had well developed polymetallic oxidation zones extending to depths of about 100 m from surface, which have been largely mined out.
References
- Mingxiu Wei (1985): Metallogenesis of a certain B-F metasomatic skarn Sn ore deposit at Gejiu. Geochimica 15(1), 37-44.
- Zhuwei Jiang, Oliver, N.H.S., Barr, T.D., Power, W.L., and Ord, A. (1997): Numerical modeling of fault-controlled fluid flow in the genesis of tin deposits of the Malage ore field, Gejiu mining district, China. Economic Geology 92(2), 228-247.
- Baogui Zhang, Zhong Zhang, Linbo Yao, Jing Hu, Mingzai Wang, and Sanxue Wang (2002): The recent researching advances of dzhalindite. Geology and Prospecting 38(6), 30-33.
External Links
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35 entries listed. 28 valid minerals.
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