高温体系中Cr元素和同位素地球化学

doi:10.3969/j.issn.0253-2778.2020.09.003

中国科学技术大学学报 ›› 2020, Vol. 50 ›› Issue (9): 1229-1248.DOI: 10.3969/j.issn.0253-2778.2020.09.003

高温体系中Cr元素和同位素地球化学

沈骥

1.中国科学技术大学地球与空间科学学院中国科学院壳幔物质与环境重点实验室，安徽合肥 230026;2.中国科学院比较行星学卓越创新中心,安徽合肥 230026； 3.浙江大学地球科学学院地球物理研究所，浙江杭州 310027

收稿日期:2020-08-02 修回日期:2020-09-20 出版日期:2020-09-30 发布日期:2020-09-30

Chromium element and isotope geochemistry in high temperature systems

(1. CAS Key Laboratory , Earth and Space Sciences, University of Science and Technology of China, Hefei 230026,China;
2. CAS Center for Excellence in Comparative Planetology ,Hefei 230026, China; 3.School of Earth Sciences, Zhejiang University, Hangzhou 310027,China)

Received:2020-08-02 Revised:2020-09-20 Online:2020-09-30 Published:2020-09-30
Contact: SHEN JI
About author:SHEN Ji (corresponding author), male, born in 1986, associate research fellow in University of Science and Technology of China (USTC). He received his BS and PhD degrees from USTC in 2007 and 2013, respectively. During this stage, his research focused on element and isotope behaviors at a subduction setting. In 2013, he carried on stable Cr isotope research at USTC as a post doctor. In 2016, he became an associate research fellow at USTC. His main research has extended to mechanism of the stable Cr isotope fractionation during different geological processes, and implications for the material recycling in subduction zones, redox conditions for planetary evolutions. So far, he has published more than ten papers in high-level academic journals such as Earth and Planetary Science Letters, Geochimica et Cosmochimica Acta, Geochemistry, Geophysics, Geosystems, and so on. E-mail: sjlcwqqq@ustc.edu.cn

摘要/Abstract

摘要： 近十多年来，对于Cr稳定同位素的研究, 尤其是在地表低温氧化还原过程中的研究得到了极大的发展.但是，在同一时期，对于高温过程中Cr同位素的研究却出现停滞不前的现象.随着质谱分析技术的提升和双稀释剂方法的广泛应用，使得高温过程中较小的同位素分馏可以被精确识别.详细介绍了近年来Cr元素和同位素在高温过程中的分配和分馏行为的研究进展，并对其潜在的应用进行展望，希望对Cr元素和同位素体系在未来的研究中提供可行的方向.

关键词: 铬元素和同位素, 高温过程, 同位素分馏, 氧逸度, 行星演化

Abstract: In the past two decades, research on stable Cr isotopes, especially the low-temperature redox processes on the earth’s surface, has been greatly developed. However, in the same period, Cr isotope fractionations induced by high temperature systems had been poorly constrained, especially before 2010. With the improvement of mass spectrometry technology and the wide application of the double-spike method, smaller isotope fractionations in high temperature processes can be accurately identified. This review will give a detailed introduction to the distribution behavior of Cr element and Cr isotope fractionation behavior in high temperature processes achieved in recent years, and potential applications, aiming to provide feasible directions for future researches of Cr element and isotope system.

Key words: chromium element and isotope, high temperature processes, isotope fractionation, oxygen fugacity, planetary evolution

沈骥, 杨兵, 夏九星. 高温体系中Cr元素和同位素地球化学[J]. 中国科学技术大学学报, 2020, 50(9): 1229-1248.

SHEN Ji, YANG Bing, XIA Jiuxing. Chromium element and isotope geochemistry in high temperature systems[J]. Journal of University of Science and Technology of China, 2020, 50(9): 1229-1248.

高温体系中Cr元素和同位素地球化学

Chromium element and isotope geochemistry in high temperature systems

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