Behavior of lithium isotopes in subduction zone mantle

本研究旨在从实验岩石学的角度破译地幔橄榄石与水流体之间的锂分配和锂同位素分馏参数，以了解深俯冲带地表和地幔物质之间的化学相互作用，从而确定了地球的化学演化。从合成橄榄石中获得的锂同位素组成表明，俯冲带地幔的锂同位素分馏可能比以前的研究预期的要明显得多。

This study aimed to decipher parameters of lithium partitioning and lithium isotope fractionation between mantle olivine and aqueous fluid, in terms of experimental petrology, in order to understand chemical interaction between surficial and mantle materials in deep subduction zone, which has defined a chemical evolution of the Earth. Lithium isotopic compositions obtained from synthesized olivines suggested that the subduction-zone mantle could have been more significantly fractionated in lithium isotope, rather than expected by previous studies.