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Formation and implication of a Cr-bearing spinel seam by interaction between alkali basaltic melt and lherzolite

文献类型：期刊论文

作者Bai, Yang4; Su, Ben-Xun1,2; Wang, Jing1; Liu, Xia1,2; Zhang, Hong-Fu2,3; Robinson, Paul T.1
刊名ORE GEOLOGY REVIEWS
出版日期2023-07-01
卷号158页码:6
ISSN号0169-1368
关键词Chromite Melt-rock interaction Alkali basalt Lherzolite
DOI10.1016/j.oregeorev.2023.105485
英文摘要It has long been known that an indisputable fact that chromite/spinel deposits are genetically related exclusively with komatiitic, tholeiitic or boninitic magmas derived from high-degree mantle melting. Here we report formation of a seam of Cr-bearing spinel through interaction between an alkali basaltic magma and fertile lherzolite. The thin seam occurrence of spinel resembles concordant podiform chromitites in ophiolites and stratiform chromitites in layered intrusions. We show that the Cr-bearing spinel seam formed by melt-rock reaction that observed in ophiolitic peridotites. The most significant difference is that the Cr-bearing spinel produced from the alkali basaltic melt-lherzolite interaction is extremely rich in Al with Cr# values of 3-6. We consequently reclassify chromitite into four types based on their Cr# values namely: high-Cr (chromite Cr# > 70), intermediate (Cr# = 70-50), high-Al (Cr# = 50-40), and extremely high-Al (Cr# < 10) with a Cr# gap between 40 and 10. The chromite/spinel compositions correspond closely to diagnostic parental magmas and the lithologies of the host peridotites.
WOS关键词PODIFORM CHROMITITES ; ISOTOPIC EVIDENCE ; ROCK INTERACTION ; PARENTAL MAGMAS ; OPHIOLITE ; MANTLE ; DIFFUSION ; MINERALS ; COMPLEX ; LUOBUSA
资助项目National Natural Science Foundation of China[91755205] ; National Natural Science Foundation of China[41772055] ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
出版者ELSEVIER
WOS记录号WOS:000998381800001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences ; Youth Innovation Promotion Associa- tion, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/110975]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Bai, Yang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Peoples R China
4.Taiyuan Univ Technol, Coll Min Engn, Taiyuan 030024, Peoples R China
推荐引用方式
GB/T 7714		 Bai, Yang,Su, Ben-Xun,Wang, Jing,et al. Formation and implication of a Cr-bearing spinel seam by interaction between alkali basaltic melt and lherzolite[J]. ORE GEOLOGY REVIEWS,2023,158:6.
APA Bai, Yang,Su, Ben-Xun,Wang, Jing,Liu, Xia,Zhang, Hong-Fu,&Robinson, Paul T..(2023).Formation and implication of a Cr-bearing spinel seam by interaction between alkali basaltic melt and lherzolite.ORE GEOLOGY REVIEWS,158,6.
MLA Bai, Yang,et al."Formation and implication of a Cr-bearing spinel seam by interaction between alkali basaltic melt and lherzolite".ORE GEOLOGY REVIEWS 158(2023):6.

入库方式： OAI收割

来源：地质与地球物理研究所

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