Geological characteristics and mineralization age of the Taoxikeng tungsten deposit in Chongyi County, southern Jiangxi Province, China.
Geological characteristics and mineralization age of the Taoxikeng tungsten deposit in Chongyi County, southern Jiangxi Province, China.
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发表时间：
2006
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通讯作者：
Xu Jian-xiang
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作者：
Xu Jian-xiang
桃溪坑钨存款位于东西向南岭构造带东段与北东-北北东向武夷山构造带南段的复合带上，是九龙脑-桃溪坑矿田的重要矿区，属以黑钨矿为主的石英脉型钨多金属存款。矿脉切割震旦系，钨矿化主要受北西向断裂控制。石英脉中与黑钨矿共生的辉钼矿的Re-Os等时线年龄为154.4± 3.8Ma，黑钨矿的模式年龄为164.0± 2.7Ma。这表明桃溪坑存款形成于燕山早期，并与燕山期岩浆活动有关。
The Taoxikeng tungsten deposit, located in the compounding belt between the eastern segment of the E-W-trending Nanling tectonic zone and the southern segment of the NE-NNE Wuyishan tectonic belt, is an important mining area in the Jiulongnao-Taoxikeng orefield, belonging to a quartz vein-type tungsten polymetallic deposit consisting predominantly of wolframite. The ore veins cut the Sinian and the tungsten mineralization is mainly controlled by a NW-trending fault. Molybdenite associated with wolframite from quartz ore veins yielded a Re-Os isochron age of 154.4±3.8 Ma and the model age of wolframite is 164.0±2.7 Ma. This suggests that the Taoxikeng deposit formed in the early Yanshanian and is genetically related to Yanshanian magmatism.