| 广东莲花山钨矿成岩成矿温度研究 |
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| 引用本文：.1995.A study o frock-forming and ore-forming temperatures of the Lianhuashan tungstrn deposit, Guangdong Province[J].Mineral Deposits,14(3):252~260 |
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| 基金项目:国家自然科学基金资助项目 |
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| 中文摘要:利用淬火油浸法测得莲花山钨矿流纹岩、石英斑岩和花岗岩锆石和造岩矿物石英中熔融包裹体均一化温度。证明本区成矿溶液来源主要与石英斑岩的含矿粒间溶液有关。 |
| 中文关键词:包裹体 成岩温度 粒间溶液 莲花山钨矿 |
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| A study o frock-forming and ore-forming temperatures of the Lianhuashan tungstrn deposit, Guangdong Province |
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| Abstract:The Lianhuashan tungsten deposit occurs in the volcanic terrain of the southeast coastal area of China, where thyolite, quartz porphyry and granite form a magmatic evolution series. Orebodies occur at the endo- and exocontact zone between quartz porphyry and metasandstone of Xiaoping coal measures. Homogenization temperatures of melting inclusions in zircon and in quartz are l100℃ and 1050℃ for thyolite, 1000℃ and 860℃ for quartz porphyry, and 950~1000℃ and 820℃ for granite respectively, suggesting that rock-forming temperatures dropped successively from eruptive rocks to intrusive rocks, and that homogenization temperatures of melting inclusions in zircon are 50～180℃ higher than those in quartz. Homogenization temperatures of gas-liquid inclusions in quartz are 520～ 230℃ ( the best being 230～ 270℃) for quartz porphyry , 450～ 200℃ (the best being 200～360℃) for ore-bearing quartz veins, 150～210℃ for granite and 170～200℃ for its vein quartz. Quartz from the quartz porphyry is similar to that from the ore-bearing quartz veins in inclusion types and homogenization temperatures, indicating that intergranular solution was formed during the cooling of magma and that ore-forming solution in this area was derived mainly from ore-bearing intergranular solution in the quartz porphyry. |
| keywords:inclusion, rock-forming temperature, intergranular solution, Lianhuashan tungsten deposit |
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