Coexistence simulations of silicate melts and liquid iron and the exchanges of oxygen between the Earth's mantle and core
文献类型：期刊论文
| 作者 | Zhang ZhiGang1,4; Liu Jin2,3; Zhang YiGang1,4; Li Juan1,4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 65期号:11页码:4249-4258 |
| 关键词 | Core-mantle differentiation Silicate melts Liquid iron alloy First principles simulations Deep oxygen Machine learning |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2022Q0749 |
| 英文摘要 | The Earth experienced many catastrophic collisions in its early history, among which the Giant Impact that leaded to the formation of the Earth-Moon system might have generated a global super-deep magma ocean down to the core-mantle boundary. The accompanying core-mantle differentiations determined the compositions of the mantle and core and set up the subsequent evolution history of the Earth. In this study, we carried out coexistence simulations of silicate melts and liquid iron with unprecedented large systems based on first principles and machine learning techniques. We obtained the equilibrium properties of the two phases under core-mantle boundary conditions, which is important for constraining the super-deep core-mantle differentiations. Using these new simulation data and literature experimental results, we refined a new equilibrium model that could be more accurate for quantifying the element exchanges between the Earth's mantle and core. With this model we discussed the exchanges of oxygen and the compositions of the core and proposed a new scenario to solve the still disputed problems. |
| WOS关键词 | MAGNESIUM PRECIPITATION ; ACCRETION ; DIFFERENTIATION ; TEMPERATURE ; EVOLUTION ; VELOCITY ; SYSTEM |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000893200500009 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/106978]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Zhang ZhiGang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Key Lab Computat Geodynam, Beijing 100049, Peoples R China 2.Ctr High Pressure Sci & Technol Adv Res, Beijing 100094, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang ZhiGang,Liu Jin,Zhang YiGang,et al. Coexistence simulations of silicate melts and liquid iron and the exchanges of oxygen between the Earth's mantle and core[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2022,65(11):4249-4258. |
| APA | Zhang ZhiGang,Liu Jin,Zhang YiGang,&Li Juan.(2022).Coexistence simulations of silicate melts and liquid iron and the exchanges of oxygen between the Earth's mantle and core.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,65(11),4249-4258. |
| MLA | Zhang ZhiGang,et al."Coexistence simulations of silicate melts and liquid iron and the exchanges of oxygen between the Earth's mantle and core".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 65.11(2022):4249-4258. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。