地幔流体组成  

COMPOSITION OF MANTLE FLUID

作　　者：张铭杰[1] 王先彬[1] 李立武[1] 

机构地区：[1]中国科学院兰州地质研究所,甘肃兰州730000

出　　处：《地学前缘》2000年第2期401-412,共12页Earth Science Frontiers

基　　金：国家自然科学基金资助项目!(492 330 6 0;491330 90 )

摘　　要：地幔流体是当今地球科学研究中的前沿领域之一 ,具有重要的研究价值。文中总结了地幔流体组成研究的手段、实验方法及近年来的进展 ,探讨了目前存在的问题 ,认为当前需进一步工作的领域有 :(1)确定适宜于地幔流体组成测定的实验方法 ,以便进行全球数据对比 ;(2 )开展不同类型地幔源区中地幔流体稀有气体同位素体系与PbSrNdHfOs同位素体系的对比性研究 ;(3)对不同构造单元中的地幔流体进行研究 ,建立不同端员地幔源区的地幔流体组成和稳定同位素制约因素 ;(4 )研究壳幔相互作用过程中的地幔流体 ,确定地幔流体中再循环地壳组分的鉴别标志 ;(5)在全球范围内探讨地质历史时期地幔流体的组成、性质、运移及演化规律 ;(6 )开展幔源H2 及烃类的研究 ,为非生物成因天然气理论及勘探提供依据。The study of mantle fluid is one of the frontiers in Earth science,and is of great significance.In the paper the suitable sample,experimental method and the advance on composition of mantle fluid in recent years have been described,and the existing problems are discussed.It is pointed out that further research should be as follows:(1)appropriate experimental method to determinate the composition of mantle fluid established for global data comparison;(2)the comparison of noble gas isotopic systematization with Pb Sr Nd Hf Os isotopic systematization;(3)research on the mantle fluid in different tectonic setting so as to define the compositional and isotopic constraints for mantle fluid in different end member of mantle resource;(4)research on the mantle fluid in the process of crust mantle interaction to determine the identification criteria for the recycled crust components in the mantle fluid;(5)The composition,property and evolutionary of mantle fluid dealt with that in the global extent during geological time;(6)research on mantle derived H 2 and hydrocarbon for the theoretical bases and exploration of the abiogenetic natural gases.

关 键 词：样品 实验地组成 地幔流体 天然气勘探 

分 类 号：P618.130.8[天文地球—矿床学] P541[天文地球—地质学]