锡在花岗质熔体和流体中的性质及分配行为研究进展被引量：15

Advances in Tin Distribution between Granitic Melts and Coexisting Aqueous Fluids and a Review of Tin in Fluids and Melts

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摘要元素在流/熔体间的交换、分配过程是岩浆热液矿床形成的重要环节,作为与岩浆活动有密切成因联系的典型矿种之一,锡在花岗质熔体和流体中的存在形式、分配行为及其影响因素是认识其成矿机理的关键。锡在花岗质熔体和流体中的分配特征不仅受温度、压力、氧逸度等条件的制约,流体组成和熔体的NBO/T(非桥氧键/桥氧键)、碱含量、A lK/A l(总碱与铝含量比)也是制约锡分配行为的重要因素;挥发分F、C l对锡在流体、熔体中的地球化学行为影响尤为明显。 The distribution of elements between melts and coexisting aqueous fluids plays an important role in magmatic hydrothermal ore-forming process. Tin ore is one of the representatives related to granitic magma evolvements. Cognition of tin species in granitic silicate melts, fluids and the partition coefficients is a key to recognition of the mechanism of tin ore-forming. The distribution of tin between granitic silicate melts and fluids is not only influenced by temperature, pressure, oxygen fugacity, but hlso controlled by NBO/T,Alkali and Alkali/Aluminium of melts and the content of fluids. Tin geochemical characteristics in melts and fluids are influnced significantly by different contents of volatiles fluorine and chlorine.

作者胡晓燕毕献武胡瑞忠尚林波樊文苓

机构地区中国科学院地球化学研究所矿床地球化学重点实验室

出处《地球科学进展》 CAS CSCD 北大核心 2007年第3期281-289,共9页 Advances in Earth Science

基金中国科学院知识创新工程重要方向项目"中国南方大陆岩石拉张与成矿作用"(编号:KZCX3-SW-125) 国家自然科学基金项目"富碱侵入岩的Au Cu Sn成矿专属性研究"(编号:40373020) 中国科学院"西部之光"项目"富碱侵入岩与铜金锡成矿关系研究"共同资助

关键词锡花岗质熔体流体分配行为 Tin Granitic silicate melts Fluids Distribution.

分类号 P618.44 [天文地球—矿床学]

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