| Rock—Forming and Ore—Forming Temperatures of Lianhuashan Tungsten Deposit,Guangdong Province |
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| 引用本文： | 李兆麟,杨忠芳.Rock—Forming and Ore—Forming Temperatures of Lianhuashan Tungsten Deposit,Guangdong Province[J].中国地球化学学报,1996,15(3):239-248. |
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| 作者姓名： | 李兆麟 杨忠芳 |
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| 作者单位： | [1]DepartmentofGeology,ZhongshanUniversity,Guangzhou510275 [2]ChinaUniversityofGeosciences,Beijing,100083 |
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| 摘 要： | The Lianhuashan tungsten deposit occurs in the volcanic terrain in the coastal area of Southeast China,where rhyolite,quartz porphyry and granite consitute a complee magmatic series.The orebodies are located in the endo-and exo-contacts between the quartz porphyry and the metasandstone of the Xiaoping coal measues.Hongenization temperatures of melt inclusions in zircon and quartz are 1100℃and 1050℃ for rhyolite,1000℃ and 860℃for quartz porphyry,and 950-1000℃and 820℃ for granite,respectively,demonstrating that the rockforming temperatures dropped successively from the eruptive to the intrusive rocks and that the homogenization temperatures of melt inclusions in zircon are 50-180℃higher than those in quartz.Homogenization temperatures of gas-liquid inclusions in quartz are 230-520℃（mostly 230-270℃）for quartz porphyry,200-450℃（mostly 200-360℃）for ore-bearing quartz veins,150-210℃for granite 170-200℃ for the vein quartz in it.Quartz from the quartz porphyry and from the ore-earing quartz veins show similar characteristics in inclusion type and homogenization temperature,indicating that intergranular solutions must have been formed upon cooling of magma and that ore-forming solutions for the tungstem mineralization were evolved mainly from ore-bearing intergranular solutions in the quartz porphyry.
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| 关 键 词： | 包裹体 成岩温度 成矿温度 钨矿床 广东 成矿作用 |
Rock-forming and ore-forming temperatures of Lianhuashan tungsten deposit,Guangdong Province |
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| Li Zhaolin,Yang Zhongfang.Rock-forming and ore-forming temperatures of Lianhuashan tungsten deposit,Guangdong Province[J].Chinese Journal of Geochemistry,1996,15(3):239-248. |
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| Authors: | Li Zhaolin Yang Zhongfang |
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| Institution: | (1) Department of Geology, Zhongshan University, 510275 Guangzhou;(2) China University of Geosciences, 100083 Beijing |
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| Abstract: | The Lianhuashan tungsten deposit occurs in the volcanic terrain in the coastal area of Southeast China, where rhyolite, quartz
porphyry and granite constitute a complete magmatic series. The orebodies are located in the endo- and exo-contacts between
the quartz porphyry and the metasandstone of the Xiaoping coal measures. Homogenization temperatures of melt inclusions in
zircon and quartz are 1100°C and 1050°C for rhyolite, 1000°C and 860°C for quartz porphyry, and 950 – 1000°C and 820°C for
granite, respectively, demonstrating that the rockforming temperatures dropped successively from the eruptive to the intrusive
rocks and that the homogenization temperatures of melt inclusions in zircon are 50 – 180°C higher than those in quartz. Homogenization
temperatures of gas liquid inclusions in quartz are 230 – 520°C (mostly 230 – 270°C) for quartz porphyry, 200 – 450°C (mostly
200 – 360°C) for ore-bearing quartz veins, 150– 210°C for granite and 170 – 200°C for the vein quartz in it. Quartz from the
quartz porphyry and from the ore-bearing quartz veins show similar characteristics in inclusion type and homogenization temperature,
indicating that intergranular solutions must have been formed upon cooling of magma and that ore-forming solutions for the
tungsten mineralization were evolved mainly from ore-bearing intergranular solutions in the quartz porphyry.
This project was financially supported by the National Natural Science Foundation of China. |
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| Keywords: | inclusion rock-forming temperature intergranular solution Lianhuashan tungsten deposit Guangdong Province |
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