Latitude: 33°15'N
Longitude: 106°22'E
煎茶岭金镍矿, 勉县, 汉中市, 陕西省, 中国
A gold and nickel mine at the northern margin of the South China craton, which was started in 1996 and jointly works separate gold and nickel ore bodies that are about 1.4 km apart.
The gold ore bodies are hosted in folded and faulted rocks of the Palaeoproterozoic Xuehutaiping Group (dolomite, siliceous dolomite, dolomitic limestone, and, locallly, carbonaceous slate) at the contact with Proterozoic ultrabasic rocks (mainly serpentinite, listvenite and magnesite) that are intruded by Hercynian veins and stocks, such as granite-porphyry, albitophyre, and quartz diorite. Gold is preferentially deposited along NNE- and NNW-dipping fault segments, is also associated with shallow WSW-dipping, dolomite-dominated veins and occurs as disseminations of economic grade within a 5-10 m thick zone below the contact with the hanging wall. The bulk of the ore is hosted in ultrabasic rocks. The nickel ore bodies are hosted in magnesite and are located about 1.4 km further north.
References
- Zhang Benren, Chen Dexing, and Hu Yikeng (1986): The geochemical study on ore-formation and ore-metamorphism process of Jianchaling nickel deposit in Lueyang, Shaanxi Province. Journal of China University of Geoscience 11(4), 351-365 (in Chinese with English abstract).
- Zuzhi Lei, Jun Li, Hailiu Bai, and Zhenyu Liu (1988): Statistical analysis of geochemical primary halo data in the Jianchaling nickel ore area, Shaanxi Province. Geology and Prospecting 24(5), 41-48.
- Pang Jiangli (1999): Geochemical Behavior of Rare Earth Elements in Jianchaling Ore Deposit in Shaanxi Province. Journal of Rare Earths 17(3), 218-223.
- Xueming Wang, Mengxiong Chen, Mei Li, and Furang Li (2002): Existing states of gold in the Jianchaling gold deposit, Shaanxi Province. Geology and Prospecting 38(6), 34-38.
- Jingwen Mao, Yumin Qiu, Goldfarb, R.J., Zhaochong Zhang, Garwin, S., and Ren Fengshou (2002): Geology, distribution, and classification of gold deposits in the western Qinling belt, central China. Mineralium Deposita 37(3/4), 352-377.
- Vielreicher, R.M., Vielreicher, N.M., Hagemann, S.G., and Jones, G. (2003): Fault zone evolution and its controls on ore-grade distribution at the Jianchaling gold deposit, western Qinling region, central China. Mineralium Deposita 38, 538-554.
Mineral List
49 entries listed. 38 valid minerals.
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