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Xihuashan ore field, Dayu Co., Ganzhou Prefecture, Jiangxi Province, China

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 25° North , 114° East (est.)
Margin of Error:~7km
Köppen climate type:Cfa : Humid subtropical climate
Name(s) in local language(s):西华山钨矿田, 大余县, 赣州市, 江西省, 中国


Tungsten ore field, related to the Xihuashan Jurassic biotite granite intrusion. The exposed area of the granite (19 km2) hosts the Xihuashan and Dangping Mines. The other mines are located further north and work vein-type deposits in the contact zone between the granite and overlying country rocks.

The granite comprises two phases, which intruded in Cambrian low-grade metamorphic rocks of psammitic and pelitic origins. The first phase is a coarse grained porphyritic biotite granite, rich in monazite-(Ce), xenotime-(Y), zircon and uranothorianite. This granite is the mother rock of the fluids for tungsten mineralization. A second phase, medium-fine grained biotite granite (magmatic to hydrothermal stage, final oversaturation of the granitic melt in a fluid phase and F-CO2 enrichment) is mineralized with garnet (Y-rich), xenotime-(Y), gadolinite-(Y), fergusonite-(Y) and Y-rich fluorite.

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48 valid minerals.

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References

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Wenkui Guo (1983) Metallization of Xihuashan tungsten deposit: An example linking magmatic deuteric infiltration with hydrothermal lodes. Mineral Deposits 2(2), 1-14 (in Chinese with English abstract).
Le Bel, L., Yidou Li, and Jifou Sheng (1984) Granitic evolution of the Xihuashan-Dangping (Jiangxi, China) Tungsten-Bearing system. Mineralogy and Petrology 33(3), 149-167.
Yongwen Mei (1985) Distribution of tungsten ores in the Xihuashan-Zongshukeng area. Geology and Prospecting 21(4), 11-16.
Zhuansong Wang, Fuzhen Chen, and Guoliang Cao (1985) Evolution of the chemical composition of the Xihuashan granite. Geology and Prospecting 21(10), 37-42.
Yongwen Mei (1987) Relation between evolution of granite and mineralization of vein-type tungsten deposits of Xihuashan, Jiangxi Province. Acta Petrologica Sinica 3(4), 20-30 (in Chinese with English abstract).
Orris, G.J., and Grauch, R.I. (2002) Rare Earth Element Mines, Deposits and Occurrences. USGS Open-File Report 02-189, 174 pp.
Rucheng Wang, Fontan, F., Xiaoming Chen, Huan Hu, Changshi Liu, Shijin Xu, and de Parseval, P. (2003) Accessory minerals in the Xihuashan Y-enriched granitic complex, Southern China: A record of magmatic and hydrothermal stages of evolution. Canadian Mineralogist 41, 727-748.
Xianhua Li, Dunyi Liu, Min Sun, Wuxian Li, Xirong Liang, and Ying Liu (2004) Precise Sm–Nd and U–Pb isotopic dating of the supergiant Shizhuyuan polymetallic deposit and its host granite, SE China. Geological Magazine 141(2), 225-231.
Guoneng Chen and Grapes, R. (2007) Granite Genesis: In-Situ Melting and Crustal Evolution. Springer Verlag, 278 pp.

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