Diversities of chromite mineralization induced by chemo-thermal evolution of the mantle during subduction initiation
文献类型：期刊论文
| 作者 | Zhang, Peng-Fei5; Zhou, Mei-Fu5; Robinson, Paul T.5; Malpas, John4; Yumul Jr, Graciano P.3; Wang, Christina Yan2; Li, Jie1
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| 刊名 | NATURE COMMUNICATIONS
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| 出版日期 | 2024-10-30 |
| 卷号 | 15期号:1页码:12 |
| DOI | 10.1038/s41467-024-53508-7 |
| 英文摘要 | Ophiolites, mostly formed via subduction initiation at proto-forearcs, exhibit a unique variation of mantle-derived magmatism from MORB-like to low-Ti tholeiitic and bainitic-like affinities. Such variation was suggested to form chromite deposits spanning high-Al to high-Cr types. Nevertheless, the origin of diverse magmatism during subduction initiation and their linkages to different chromite deposits has long been enigmatic. Here we show elemental and Os isotopic compositions of different chromitites from the Zambales ophiolite, Philippines. Combined with data from ophiolites worldwide, high-Al and high-Cr chromitites are revealed to result from low-Ti tholeiitic and boninitic-like magmatism, respectively. Proto-forearc mantle had few chromitites generated during MORB-like magmatism, but afterwards, it was modified first by slab fluids and later by continuous asthenospheric upwelling in the context of slab densification and rollback. The latter modification elevated the geothermal gradient and replenished fertile components in the proto-forearc mantle progressively, inducing increasingly higher degrees of mantle melting and Cr-richer magmatism and chromitites. Varied rates of slab rollback are the fundamental driving force for the evolution of infant subduction zones. Relevant non-uniform motion induces thermo-chemical variations in the underlying mantle, generating diverse magmatism and chromite ores. |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001346144300038 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82636]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Zhang, Peng-Fei; Zhou, Mei-Fu |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Mineral & Metallogeny, Guangzhou Inst Geochem, Guangzhou, Peoples R China 3.Cordillera Explorat Co Inc, NAC Tower, Taguig City, Philippines 4.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China 5.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Peng-Fei,Zhou, Mei-Fu,Robinson, Paul T.,et al. Diversities of chromite mineralization induced by chemo-thermal evolution of the mantle during subduction initiation[J]. NATURE COMMUNICATIONS,2024,15(1):12. |
| APA | Zhang, Peng-Fei.,Zhou, Mei-Fu.,Robinson, Paul T..,Malpas, John.,Yumul Jr, Graciano P..,...&Li, Jie.(2024).Diversities of chromite mineralization induced by chemo-thermal evolution of the mantle during subduction initiation.NATURE COMMUNICATIONS,15(1),12. |
| MLA | Zhang, Peng-Fei,et al."Diversities of chromite mineralization induced by chemo-thermal evolution of the mantle during subduction initiation".NATURE COMMUNICATIONS 15.1(2024):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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