Pervasive hydrous carbonatitic liquids mediate transfer of carbon from the slab to the subarc mantle
文献类型：期刊论文
| 作者 | Chen, Wei; Zhang, Guoliang; Keshav, Shantanu; Li, Yuan
|
| 刊名 | COMMUNICATIONS EARTH & ENVIRONMENT
 |
| 出版日期 | 2023 |
| 卷号 | 4期号:1页码:73 |
| 关键词 | PHASE-RELATIONS SUBDUCTION ZONES HIGH-PRESSURE METAMORPHIC DEVOLATILIZATION ECLOGITE CALCITE GPA METASOMATISM SEDIMENTS WATER |
| ISSN号 | 2662-4435 |
| DOI | 10.1038/s43247-023-00741-5 |
| 英文摘要 | Carbonatitic liquids, as a medium for transferring carbon from the slab to the mantle at subarc depths, are thought to be restricted either to the hottest conditions or to be the hydrous melting of calcium-rich lithologies (i.e., carbonated gabbro and limestone rocks) in subduction zones. In this study, high-pressure experiments on carbonated hydrous pelites demonstrate that while silicate melts are produced at 2.5-4 GPa, hydrous carbonatitic liquids clearly dominate at 5-6 GPa. The stability of Ca-rich carbonate is strongly depressed by water at pressures exceeding similar to 4 GPa, promoting the formation of hydrous carbonatitic liquids at temperatures as low as similar to 850-900 degrees C; these temperatures correspond to intermediate thermal regimes at depths of 150-180 km. Hence, carbonatite production beneath arcs is more pervasive than previously thought, and the carbon cycle is most likely confined to depths of less than 200 km for many subduction zones. |
| WOS研究方向 | Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000952165900003 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/80353]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen, Wei,Zhang, Guoliang,Keshav, Shantanu,et al. Pervasive hydrous carbonatitic liquids mediate transfer of carbon from the slab to the subarc mantle[J]. COMMUNICATIONS EARTH & ENVIRONMENT,2023,4(1):73. |
| APA | Chen, Wei,Zhang, Guoliang,Keshav, Shantanu,&Li, Yuan.(2023).Pervasive hydrous carbonatitic liquids mediate transfer of carbon from the slab to the subarc mantle.COMMUNICATIONS EARTH & ENVIRONMENT,4(1),73. |
| MLA | Chen, Wei,et al."Pervasive hydrous carbonatitic liquids mediate transfer of carbon from the slab to the subarc mantle".COMMUNICATIONS EARTH & ENVIRONMENT 4.1(2023):73. |
入库方式： OAI收割
来源：广州地球化学研究所
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