Negligible fractionation between fluorine and chlorine during magma ocean crystallization and implications for the origin of Earth's volatiles
文献类型：期刊论文
| 作者 | Yang, Xueping1,2,3; He, Pengli2,3; Yang, Ya-Nan2,3; Du, Zhixue2,3 |
| 刊名 | GEOCHIMICA ET COSMOCHIMICA ACTA
 |
| 出版日期 | 2023-10-15 |
| 卷号 | 359页码:46-56 |
| 关键词 | Chlorine Fluorine Bridgmanite Magma ocean crystallization Volatile accretion |
| ISSN号 | 0016-7037 |
| DOI | 10.1016/j.gca.2023.08.022 |
| 英文摘要 | Halogens are powerful tracers for the accretion of Earth's volatiles. Their sensitivity to Earth's differentiation, such as core formation, magma ocean crystallization, and planetary evaporation allows us to track such major events and the origin of Earth's building blocks. Here we examine the role of magma ocean crystallization in fractionating F/Cl ratio of the BSE by experimentally determining the partitioning behavior of F and Cl between silicate melt and crystallized minerals. Previous experimental data, due to technical challenges, are only available at pressures <25 GPa. To simulate relevant conditions for deep magma oceans, we perform laser-heated diamond anvil cell experiments to determine partition coefficients of F and Cl between bridgmanite and silicate melt at temperatures of similar to 4000-4500 K and pressures of 33-55 GPa. Our data show that F and Cl are both strongly favored in silicate melt, with partition coefficients of F and Cl in the range of 0.12-0.16 and 0.007-0.017, respectively. Given plausible magma ocean scenarios, our results indicate that F and Cl are not significantly fractionated during crystallization of a deep magma ocean. Neglecting other potential processes that may fractionate F and Cl, the F/Cl ratio in the BSE should reflect that of Earth's building blocks. It indicates Earth's volatiles may be largely derived from inner solar system, in alignment with other isotopic systems such as nitrogen and hydrogen. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001077798800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74926]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Yang, Ya-Nan; Du, Zhixue |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xueping,He, Pengli,Yang, Ya-Nan,et al. Negligible fractionation between fluorine and chlorine during magma ocean crystallization and implications for the origin of Earth's volatiles[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2023,359:46-56. |
| APA | Yang, Xueping,He, Pengli,Yang, Ya-Nan,&Du, Zhixue.(2023).Negligible fractionation between fluorine and chlorine during magma ocean crystallization and implications for the origin of Earth's volatiles.GEOCHIMICA ET COSMOCHIMICA ACTA,359,46-56. |
| MLA | Yang, Xueping,et al."Negligible fractionation between fluorine and chlorine during magma ocean crystallization and implications for the origin of Earth's volatiles".GEOCHIMICA ET COSMOCHIMICA ACTA 359(2023):46-56. |
入库方式： OAI收割
来源：广州地球化学研究所
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