碳酸盐成岩作用中的团簇同位素地球化学研究进展  

A Review of Advances in Clumped Isotope Geochemistry in Carbonate Diagenesis

作　　者：郭炀锐 邓文峰[1,2] 韦刚健 GUO Yang-rui;DENG Wen-feng;WEI Gang-jian(State Key Laboratory of Isotope Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China;CAS Center for Excellence in Deep Earth Science,Guangzhou 510640,China)

机构地区：[1]中国科学院广州地球化学研究所,同位素地球化学国家重点实验室,广州510640 [2]中国科学院深地科学卓越创新中心,广州510640

出　　处：《矿物岩石地球化学通报》2022年第1期166-174,184,共10页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金资助项目(41973003,42003001);中国科学院特别研究助理项目(2019SZJJ-09)。

摘　　要：碳酸盐团簇同位素作为一种广泛应用的新型古温度代用指标,在解决地球科学领域诸多与温度相关的科学问题上具有重要的应用价值。然而,团簇同位素容易遭受碳酸盐后期成岩作用改造的影响。因此,为了提高团簇同位素温度计的准确性,研究团簇同位素对成岩作用的分馏响应机理具有重要意义。本文综述了碳酸盐成岩作用中的团簇同位素地球化学研究近年来的进展,总结了影响团簇同位素分馏的重结晶和固态重排效应的研究方法,探讨了这两种效应背后的控制因素,展望了未来碳酸盐成岩作用中团簇同位素地球化学的研究方向。Carbonate clumped isotope has become a novel paleotemperature proxy, playing an important role in addressing many important temperature-related scientific issues in the field of earth sciences. However, the clumped isotope appears to be sensitive to the alteration of carbonate diagenesis. Consequently, understanding the fractionation mechanism of clumped isotope in carbonate diagenesis is essential to improve the accuracy of the clumped isotope thermometry. This paper reviews the advances in the clumped isotope geochemistry of carbonate diagenesis, summarizes the methods to study the recrystallization and solid-state reordering effects on clumped isotope fractionation, and looks forward to the future research directions of the clumped isotope geochemistry in carbonate diagenesis.

关 键 词：碳酸盐 团簇同位素 成岩作用 重结晶 固态重排 

分 类 号：P597[天文地球—地球化学]