Premium
Mineralogical Characteristics and Significance of Wolframite from the Xihuashan Tungsten Deposit, Jiangxi Province, China
Author(s) -
LU Lin,
LIANG Ting,
CHEN Zhenghui
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12382_15
Subject(s) - china , christian ministry , beijing , wolframite , chinese academy of sciences , mineral resource classification , library science , geology , geochemistry , geography , political science , archaeology , tungsten , chemistry , law , organic chemistry , computer science
The Xihuashan tungsten deposit is located in the Chongyi-Dayu-Shangyou tungsten-polymetallic orefield, eastern Nanling region. Exposed strata are mostly represented by rocks of Middle to Upper Cambrian age with Quaternary cover. The composite Xihuashan granite is the main intrusion, forming a stock-like body intruding into Cambrian strata. The main rock types are medium-grain biotite granite and medium-grain porphyritic biotite granite. NE-NNE-striking faults are recognized as orecontrolling structures. The host rocks are also folded. The orebodies occur as veins located at the inner contact zone of the southwestern granite body. The veins are thin, long and display a plate-like morphlogy and complex zoning. The main ore minerals are wolframite, molybdenite, scheelite, bismuthinite, cassiterite, pyrite, pyrrhotite and chalcopyrite. Gangue minerals are quartz, feldspar, mica, beryl, garnet and fluorite. Ore mineral assemblages indicate the following stages of mineralization: beryl-wolframitequartz(feldspar); wolframite-quartz (feldspar); sulfide-quartz; and fluoritecalcite-quartz (Huang Huilan et al., 2006).