New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process
文献类型：期刊论文
| 作者 | Zhang, Yuxiang1,3; Zeng, Zhigang1,2,3; Chen, Shuai1; Wang, Xiaoyuan1,2; Yin, Xuebo1 |
| 刊名 | FRONTIERS OF EARTH SCIENCE
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 12期号:2页码:325-338 |
| 关键词 | Okinawa Trough rhyolite andesite remelting fractional crystallization |
| ISSN号 | 2095-0195 |
| DOI | 10.1007/s11707-017-0638-z |
| 通讯作者 | Zeng, Zhigang(zgzeng@ms.qdio.ac.cn) |
| 英文摘要 | In the middle Okinawa Trough (MOT), rhyolites have been typically considered as products of crystallization differentiation of basaltic magma as a feature of bimodal volcanism. However, the evidence is insufficient. This paper compared chemical trends of volcanic rocks from the MOT with fractional crystallization simulation models and experimental results and utilized trace element modeling combined with Rayleigh fractionation calculations to re-examine fractional crystallization processes in generating rhyolites. Both qualitative and quantitative studies indicate that andesites, rather than rhyolites, originate by fractional crystallization from basalts in the MOT. Furthermore, we established two batch-melting models for the MOT rhyolites and proposed that type 1 rhyolites are produced by remelting of andesites with amphiboles in the residue, while type 2 rhyolites are derived from remelting of andesites without residual amphiboles. It is difficult to produce melts with a SiO2 content ranging from 62% to 68% either by magmatic differentiation from basalts or by remelting of andesites, and this difficulty might help account for the compositional gap (Daly gap) for bimodal volcanism in the Okinawa Trough. |
| 资助项目 | National Basic Research Program of China[2013CB429700] ; National Natural Science Foundation of China[41325021] ; Special Fund for the Global Change and Air-Sea Interaction Project[GASI-GEOGE-02] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11030302] ; Special Fund for the Taishan Scholar Program of Shandong Province[ts201511061] ; Qingdao National Laboratory for Marine Science and Technology[2015ASTP-0S17] ; Qingdao National Laboratory for Marine Science and Technology[2015ASKJ03] ; Qingdao National Laboratory for Marine Science and Technology[2016ASKJ13] ; Innovative Talent Promotion Program[2012RA2191] ; Science and Technology Development Program of Shandong Province[2013GRC31502] ; National High Level Talent Special Support Program ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Qingdao Collaborative Innovation Center of Marine Science and Technology |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000432334400006 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/154692]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Zeng, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yuxiang,Zeng, Zhigang,Chen, Shuai,et al. New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process[J]. FRONTIERS OF EARTH SCIENCE,2018,12(2):325-338. |
| APA | Zhang, Yuxiang,Zeng, Zhigang,Chen, Shuai,Wang, Xiaoyuan,&Yin, Xuebo.(2018).New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process.FRONTIERS OF EARTH SCIENCE,12(2),325-338. |
| MLA | Zhang, Yuxiang,et al."New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process".FRONTIERS OF EARTH SCIENCE 12.2(2018):325-338. |
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来源：海洋研究所
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