磷在硅酸盐矿物与熔体之间分配系数的研究进展  

Research Progress on Phosphorus Partition Coefficient Between Silicate Mineral and Melt

作　　者：叶立金 翟双猛[2] 

机构地区：[1]北京大学地球与空间科学学院,造山带与地壳演化教育部重点实验室,北京100871 [2]中国科学院地球化学研究所,地球内部物质高温高压院重点实验室,贵阳550081

出　　处：《矿物岩石地球化学通报》2015年第4期843-848,共6页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金资助项目(41372040)

摘　　要：硅酸盐矿物与熔体之间的磷分配系数对研究岩浆演化和结晶分异程度具有重要意义,也是了解地幔磷储库和建立地球各圈层间磷运移模式的基础。本文分析和总结了前人采用天然样品和合成实验样品研究不同硅酸盐矿物和熔体间的磷分配系数的成果,分析了不同物理化学参数对分配系数的影响,包括熔体组成(如Mg O、Al2O3含量)、矿物结构(分配系数与[Si O4]4-聚合度呈负相关关系)、温度、压力和氧逸度等,指出当前研究中有关更高压力条件(>15 GPa)及有流体存在时分配系数的研究是不足的。The partition coefficient of phosphorus between silicate mineral and melt is significant in understanding the evolution and the differentiation degrees of silicate melt,and is the foundation of estimating the phosphorus reservoir in the mantle and establishing phosphorus migration models among various spheres for the Earth as well. This article reviewed literatures on the partition coefficient of phosphorus between silicate mineral and melt in natural samples and experimental products,discussed effects of physicochemical parameters on the partition coefficient,including melt composition（ e. g.Mg O and Al2O3contents）,mineral structure（ the degree of polymerization of [Si O4]^4-）,temperature,pressure and oxygen fugacity,and pointed out shortages of prior researches on the partition coefficient of phosphorus between silicate mineral and melt under high pressure（ 〉15 GPa） or with fluids.

关 键 词：磷 分配系数 硅酸盐矿物 熔体 

分 类 号：P595[天文地球—地球化学]