中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院地球与行星物理重点实验室
Early sulfur-rich magmatism on the ungrouped achondrite Northwest Africa 7325 differentiated parent body

文献类型：期刊论文

作者Yang, Jing3,4,5; Lin, Yangting3; Changela, Hitesh1,2,3; Xie, Liewen3; Chen, Bin5; Yang, Jinhui3
刊名METEORITICS & PLANETARY SCIENCE
出版日期2020-09-08
页码28
ISSN号1086-9379
DOI10.1111/maps.13559
英文摘要The ungrouped achondrite Northwest Africa (NWA) 7325 parent body underwent a severe impact after primary crystallization, which completely melted plagioclase and partially melted pyroxene, followed by Mg diffusion into the adjacent plagioclase-melt. The Al-26-Mg-26 system was therefore modified, forming a pseudoisochron with an initial delta Mg-26* of 0.094 +/- 0.005 parts per thousand and an age of 4563.12 +/- 0.33 Ma between the primary crystallization and subsequent impact event(s). The positive initial delta Mg-26* can be interpreted by a model age of similar to 1.77 Ma after CAIs when a chondritic composition differentiated into a magma/rock with the Al/Mg ratio equivalent to that of NWA 7325 (similar to 1.52). The LREE enrichments and a positive Eu anomaly suggest that the NWA 7325 parent magma formed by the melting of a plagioclase-rich crustal lithology, which crystallized from a magma ocean. Differentiation of the magma ocean was prior to 1.77 Ma after CAIs. NWA 7325 is also unique by containing many rounded voids (5-6 vol%) interstitial to or enclosed in silicates, suggested to have formed by the leaching/vaporization of pre-existing Fe-Ca-Mg-Mn sulfides. This is supported by the similar morphology between voids and Cr-bearing troilites, the discovery of relict oldhamite, and the highly reducing conditions of NWA 7325. The loss of pre-existing sulfides could explain the unusual subchondritic Mn/Mg ratio of the bulk sample. Furthermore, the enrichment of moderately volatile elements (K/Th ratio similar to 2600-10,000) in the NWA 7325 parent body may result from the bonding with S2- in silicate melts under highly reducing conditions. NWA 7325 therefore provides evidence of sulfur-rich magmatism in the early solar system.
WOS关键词TRACE-ELEMENTS ; MELT ; ORIGIN ; METEORITE ; SYSTEM ; GEOCHEMISTRY ; INDUCTION ; OLDHAMITE ; PETROLOGY ; SULFIDE
资助项目National Natural Science Foundation of China[41603067] ; National Natural Science Foundation of China[41490631] ; National Natural Science Foundation of China[41430105] ; China Postdoctoral Science Foundation[2019M662176] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDJ-SSW-DQC001] ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences[XDA 15020300]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000566803100001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences ; Strategic Priority Research Program on Space Science, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/98235]  
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Yang, Jing; Chen, Bin
作者单位1.China Acad Space Technol, Qianxuesen Lab Space Technol, Beijing 100029, Peoples R China
2.Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
4.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China
5.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Jing,Lin, Yangting,Changela, Hitesh,et al. Early sulfur-rich magmatism on the ungrouped achondrite Northwest Africa 7325 differentiated parent body[J]. METEORITICS & PLANETARY SCIENCE,2020:28.
APA Yang, Jing,Lin, Yangting,Changela, Hitesh,Xie, Liewen,Chen, Bin,&Yang, Jinhui.(2020).Early sulfur-rich magmatism on the ungrouped achondrite Northwest Africa 7325 differentiated parent body.METEORITICS & PLANETARY SCIENCE,28.
MLA Yang, Jing,et al."Early sulfur-rich magmatism on the ungrouped achondrite Northwest Africa 7325 differentiated parent body".METEORITICS & PLANETARY SCIENCE (2020):28.

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。