The carbon isotope composition of natural SiC (moissanite) from the Earth's mantle: New discoveries from ophiolites
文献类型:期刊论文
作者 | Trumbull, Robert B.1; Yang, Jing-Sui2; Robinson, Paul T.1; Di Pierro, Simonpietro3; Vennemann, Torsten4; Wiedenbeck, Michael1 |
刊名 | LITHOS
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出版日期 | 2009-12-01 |
卷号 | 113期号:3-4页码:612-620 |
关键词 | Moissanite SIMS Ophiolites Luobusa Diamonds Semail |
ISSN号 | 0024-4937 |
DOI | 10.1016/j.lithos.2009.06.033 |
文献子类 | Article |
英文摘要 | Moissanite (natural SiC) has been recovered from podiform chromitites of several ophiolite complexes, including the Luobusa and Donqiao ophiolites in Tibet, the Semail ophiolite in Oman and the United Arab Emirates, and the Ray-Iz ophiolite of the Polar Urals, Russia. Taking these new occurrences with the numerous earlier reports of moissanite in diamondiferous kimberlites leads to the conclusion that natural SiC is a widespread mineral in the Earth's mantle, which implies at least locally extremely low redox conditions. The ophiolite moissanite grains are mostly fragments (20 to 150 mu m) with one or more crystal faces, but some euhedral hexagonal grains have also been recovered. Twinned crystals are common in chromitites from the Luobusa ophiolite. The moissanite is rarely colorless, more commonly light bluish-gray to blue or green. Many grains contain inclusions of native Si and Fe-Si alloys (FeSi(2), Fe(3)Si(7)). |
WOS关键词 | ALPHA-SILICON CARBIDE ; LUOBUSA OPHIOLITE ; SOUTHERN TIBET ; PODIFORM CHROMITITES ; OMAN OPHIOLITE ; DIAMOND FORMATION ; POLAR-URALS ; MELT-ROCK ; ORIGIN ; CHINA |
WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
语种 | 英语 |
WOS记录号 | WOS:000272787200018 |
出版者 | ELSEVIER SCIENCE BV |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/71126] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Trumbull, Robert B. |
作者单位 | 1.GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany 2.Chinese Acad Sci, Key Lab Continental Dynam, Inst Geol, Beijing 100037, Peoples R China 3.St Gobain Res, Appl Mineral Grp, F-93303 Aubervilliers, France 4.Univ Lausanne, Inst Mineral & Geochem, CH-1015 Lausanne, Switzerland |
推荐引用方式 GB/T 7714 | Trumbull, Robert B.,Yang, Jing-Sui,Robinson, Paul T.,et al. The carbon isotope composition of natural SiC (moissanite) from the Earth's mantle: New discoveries from ophiolites[J]. LITHOS,2009,113(3-4):612-620. |
APA | Trumbull, Robert B.,Yang, Jing-Sui,Robinson, Paul T.,Di Pierro, Simonpietro,Vennemann, Torsten,&Wiedenbeck, Michael.(2009).The carbon isotope composition of natural SiC (moissanite) from the Earth's mantle: New discoveries from ophiolites.LITHOS,113(3-4),612-620. |
MLA | Trumbull, Robert B.,et al."The carbon isotope composition of natural SiC (moissanite) from the Earth's mantle: New discoveries from ophiolites".LITHOS 113.3-4(2009):612-620. |
入库方式: OAI收割
来源:地质与地球物理研究所
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