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Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in suprasubduction zone environments

文献类型：期刊论文

作者Zhou, Mei-Fu1; Robinson, Paul T.1; Su, Ben-Xun1,2; Gao, Jian-Feng1; Li, Jian-Wei3; Yang, Jing-Sui4; Malpas, John1
刊名GONDWANA RESEARCH
出版日期2014-07-01
卷号26期号:1页码:262-283
关键词Podiform chromitite Chromite compositions Associated minerals Melt/rock interaction Slab contamination
ISSN号1342-937X
DOI10.1016/j.gr.2013.12.011
文献子类Review
英文摘要Podiform chromitites in the mantle sections of ophiolites belong to either high-Cr (metallurgical) or high-Al (refractory) varieties. Their highly variable compositions are reflected by different Cr#s [100Cr / (Cr + Al)] and Cr203 and Al2O3 contents of the chromite, falling in the boninitic and MORB fields, respectively. Parental magmas of high-Cr chromitites have higher Sc, Mn, Co and Ni, and lower Ti, V, Zn and Ga concentrations than MORB melts; their trace-element patterns are similar to those of boninites, except for Ni and Zn. In contrast, high-Al chromitites have parental magmas characterized by generally flat MORB-normalized patterns, showing slight enrichments in V, Mn and Co, and depletion in Ni and Zn. Regardless of their compositions, both types of chromitites have chondrite-normalized platinum group element (PGE) patterns showing enrichment in IPGE and depletion in PPGE. A variety of platinum group minerals are typically present in both types, occurring either as euhedral inclusions or along fractures in chromite grains. These minerals have a wide span of Re-Os isotopic compositions, reflecting a variety of origins.
WOS关键词PLATINUM-GROUP MINERALS ; TEHUITZINGO ACATLAN COMPLEX ; BELT EASTERN CUBA ; UPPER-MANTLE ; OPHIOLITE COMPLEX ; LUOBUSA OPHIOLITE ; OMAN OPHIOLITE ; GROUP ELEMENTS ; NORTHERN GREECE ; SOUTHERN TIBET
WOS研究方向Geology
语种英语
WOS记录号WOS:000336338100016
出版者ELSEVIER SCIENCE BV
资助机构Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Hong Kong Scholars Program(XJ2012048) ; Hong Kong Scholars Program(XJ2012048) ; Research Grant Council of Hong Kong(HKU706413P) ; Research Grant Council of Hong Kong(HKU706413P) ; CRCG of HKU ; CRCG of HKU ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Hong Kong Scholars Program(XJ2012048) ; Hong Kong Scholars Program(XJ2012048) ; Research Grant Council of Hong Kong(HKU706413P) ; Research Grant Council of Hong Kong(HKU706413P) ; CRCG of HKU ; CRCG of HKU ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Hong Kong Scholars Program(XJ2012048) ; Hong Kong Scholars Program(XJ2012048) ; Research Grant Council of Hong Kong(HKU706413P) ; Research Grant Council of Hong Kong(HKU706413P) ; CRCG of HKU ; CRCG of HKU ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences(XDB03010203) ; Hong Kong Scholars Program(XJ2012048) ; Hong Kong Scholars Program(XJ2012048) ; Research Grant Council of Hong Kong(HKU706413P) ; Research Grant Council of Hong Kong(HKU706413P) ; CRCG of HKU ; CRCG of HKU
源URL[http://ir.iggcas.ac.cn/handle/132A11/85013]  
专题中国科学院地质与地球物理研究所
通讯作者Zhou, Mei-Fu
作者单位1.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
4.Chinese Acad Geol Sci, Inst Geol, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Mei-Fu,Robinson, Paul T.,Su, Ben-Xun,et al. Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in suprasubduction zone environments[J]. GONDWANA RESEARCH,2014,26(1):262-283.
APA Zhou, Mei-Fu.,Robinson, Paul T..,Su, Ben-Xun.,Gao, Jian-Feng.,Li, Jian-Wei.,...&Malpas, John.(2014).Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in suprasubduction zone environments.GONDWANA RESEARCH,26(1),262-283.
MLA Zhou, Mei-Fu,et al."Compositions of chromite, associated minerals, and parental magmas of podiform chromite deposits: The role of slab contamination of asthenospheric melts in suprasubduction zone environments".GONDWANA RESEARCH 26.1(2014):262-283.

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来源：地质与地球物理研究所

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