Review of the Lithium Isotope System as a Geochemical Tracer
Review of the Lithium Isotope System as a Geochemical Tracer
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DOI：
10.2747/0020-6814.49.4.374
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发表时间：
2007-04
影响因子：
2.6
通讯作者：
Yanjie Tang;Hong‐fu Zhang;Jifeng Ying
中科院分区：
文献类型：
--
作者：
Yanjie Tang;Hong‐fu Zhang;Jifeng Ying
锂同位素具有许多有利的特征，可作为广泛地质过程的地球化学示踪剂，涵盖从地球表面到地幔的流体/熔体-矿物相互作用。本文从测量技术、主要地球化学库、近地表风化作用的对比行为、俯冲带物质的壳幔旋回、对流地幔的特征以及锂同位素分馏的控制因素等方面，简要综述了锂同位素地球化学的最新进展。随着分配系数(矿物-熔体/流体)和分馏系数(如温度和扩散系数)的更好地量化，锂同位素体系将成为未来研究中强有力的地球化学示踪剂。
Lithium isotopes have many advantageous characteristics as geochemical tracers for a wide range of geological processes, covering fluid/melt-mineral interactions from the Earth's surface to the mantle. The latest developments in Li isotope geochemistry, in terms of measuring techniques, major geochemical reservoirs, the contrasting behaviors during near-surface weathering, and crust/mantle cycling of materials in subduction zones, as well as the signature of convective mantle, and controlling factors in Li isotopic fractionation are briefly reviewed in this article. With better quantification of partition coefficients (mineral-melt/fluid) and fractionation factors (such as temperature and diffusion coefficients), the Li isotope system will become a powerful geochemical tracer in future studies.