The vanadium isotopic composition of L ordinary chondrites

作     者：Yongli Xue Chun-hui Li Yuhan Qi Chuantong Zhang Bingkui Miao Fang Huang 

作者机构：Institution of Meteorites and Planetary Materials ResearchGuilin University of Technology Key Laboratory of Planetary Geological Evolution at Universities of Guangxi ProvinceGuilin University of Technology Key Laboratory of Crust-Mantle Materials and EnvironmentsSchool of Earth and Space SciencesUniversity of Science and Technology of China 

出 版 物：《Acta Geochimica》 (地球化学学报（英文）)

年 卷 期：2018年第37卷第4期

页      面：501-508页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：financially supported by the Strategic Priority Research Program (B) of the Chinese Academy of Sciences (XDB18000000) the National Science Foundation of China (41173077, 41776196, 41630206, and 41325011) the National Science and Technology Foundation Platform Project of Ministry of Science and Technology of China (2005DKA21406) the 111 Project 

主　　题：V isotopes L ordinary chondrites Variation 

摘      要：Stable isotopic data of meteorites are critical for understanding the evolution of terrestrial planets. In this study, we report high-precision vanadium （V） isotopic compositions of 11 unequilibrated and equilibrated L chondrites. Our samples show an average δ^51v of -1.25‰ ±0.38‰ （2SD, n = 11）, which is ,- 0.5‰ lighter than that of the bulk silicate Earth constrained by mantle peridotites. Isotopic fractionation in type 3 ordinary chondrites vary from - 1.76‰ to - 1.29‰, whereas the δ^51V of equilibrated chondrites vary from - 1.37‰ to -1.08‰. 551V of L chondrites do not correlate with thermal metamorphism, shock stage, or weathering degree. Future studies are required to explore the reason for V isotope variation in the solar system.