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  4. 中国科学院地球与行星物理重点实验室
Petrology and oxygen isotopic compositions of calcium-aluminum-rich inclusions in primitive CO3.0-3.1 chondrites

文献类型：期刊论文

作者Zhang, Mingming1,2,3; Bonato, Enrica1,4; King, Ashley J.1; Russell, Sara S.1; Tang, Guoqiang5; Lin, Yangting2,3
刊名METEORITICS & PLANETARY SCIENCE
出版日期2020-05-05
页码25
ISSN号1086-9379
DOI10.1111/maps.13473
英文摘要The petrologic and oxygen isotopic characteristics of calcium-aluminum-rich inclusions (CAIs) in CO chondrites were further constrained by studying CAIs from six primitive CO3.0-3.1 chondrites, including two Antarctic meteorites (DOM 08006 and MIL 090010), three hot desert meteorites (NWA 10493, NWA 10498, and NWA 7892), and the Colony meteorite. The CAIs can be divided into hibonite-bearing inclusions (spinel-hibonite spherules, monomineralic grains, hibonite-pyroxene microspherules, and irregular/nodular objects), grossite-bearing inclusions (monomineralic grains, grossite-melilite microspherules, and irregular/nodular objects), melilite-rich inclusions (fluffy Type A, compact type A, monomineralic grains, and igneous fragments), spinel-pyroxene inclusions (fluffy objects resembling fine-grained spinel-rich inclusions in CV chondrites and nodular/banded objects resembling those in CM chondrites), and pyroxene-anorthite inclusions. They are typically small (98.4 +/- 54.4 mu m, 1SD) and comprise 1.54 +/- 0.43 (1SD) area% of the host chondrites. Melilite in the hot desert and Colony meteorites was extensively replaced by a hydrated Ca-Al-silicate during terrestrial weathering and converted melilite-rich inclusions into spinel-pyroxene inclusions. The CAI populations of the weathered COs are very similar to those in CM chondrites, suggesting that complete replacement of melilite by terrestrial weathering, and possibly parent body aqueous alteration, would make the CO CAIs CM-like, supporting the hypothesis that CO and CM chondrites derive from similar nebular materials. Within the CO3.0-3.1 chondrites, asteroidal alteration significantly resets oxygen isotopic compositions of CAIs in CO3.1 chondrites ( increment O-17: -25 to -2 parts per thousand) but left those in CO3.0-3.05 chondrites mostly unchanged ( increment O-17: -25 to -20 parts per thousand), further supporting the model whereby thermal metamorphism became evident in CO chondrites of petrologic type >= 3.1. The resistance of CAI minerals to oxygen isotope exchange during thermal metamorphism follows in the order: melilite + grossite < hibonite + anorthite < spinel + diopside + forsterite. Meanwhile, terrestrial weathering destroys melilite without changing the chemical and isotopic compositions of melilite and other CAI minerals.
WOS关键词BEARING REFRACTORY INCLUSIONS ; SOLAR-SYSTEM EVIDENCE ; CARBONACEOUS CHONDRITE ; CM CHONDRITE ; HETEROGENEOUS DISTRIBUTION ; ENSTATITE CHONDRITES ; AQUEOUS ALTERATION ; TITANIUM ISOTOPES ; MINERAL CHEMISTRY ; SPINEL-RICH
资助项目NSF ; NASA ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-DQC001] ; Strategic Priority Research Program on Space Science, CAS[XDA15020300] ; Science and Technology Facilities Council (STFC), UK[ST/R000727/1]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000530157700001
出版者WILEY
资助机构NSF ; NSF ; NSF ; NSF ; NASA ; NASA ; NASA ; NASA ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; NSF ; NSF ; NSF ; NSF ; NASA ; NASA ; NASA ; NASA ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; NSF ; NSF ; NSF ; NSF ; NASA ; NASA ; NASA ; NASA ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; NSF ; NSF ; NSF ; NSF ; NASA ; NASA ; NASA ; NASA ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Key Research Program of Frontier Sciences, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Strategic Priority Research Program on Space Science, CAS ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK ; Science and Technology Facilities Council (STFC), UK
源URL[http://ir.iggcas.ac.cn/handle/132A11/96249]  
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
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Russell, Sara S.
作者单位1.Nat Hist Museum, Dept Earth Sci, Cromwell Rd, London SW7 5BD, England
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Glasgow, Sch Geog & Earth Sci, Glasgow G12 8QQ, Lanark, Scotland
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Mingming,Bonato, Enrica,King, Ashley J.,et al. Petrology and oxygen isotopic compositions of calcium-aluminum-rich inclusions in primitive CO3.0-3.1 chondrites[J]. METEORITICS & PLANETARY SCIENCE,2020:25.
APA Zhang, Mingming,Bonato, Enrica,King, Ashley J.,Russell, Sara S.,Tang, Guoqiang,&Lin, Yangting.(2020).Petrology and oxygen isotopic compositions of calcium-aluminum-rich inclusions in primitive CO3.0-3.1 chondrites.METEORITICS & PLANETARY SCIENCE,25.
MLA Zhang, Mingming,et al."Petrology and oxygen isotopic compositions of calcium-aluminum-rich inclusions in primitive CO3.0-3.1 chondrites".METEORITICS & PLANETARY SCIENCE (2020):25.

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来源：地质与地球物理研究所

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