New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process

doi:10.1007/s11707-017-0638-z

IOCAS-IR > 海洋地质与环境重点实验室

	New insights into the origin of the bimodal volcanism in the middle Okinawa Trough: not a basalt-rhyolite differentiation process
	Zhang, Yuxiang 1,3; Zeng, Zhigang 1,2,3; Chen, Shuai 1; Wang, Xiaoyuan 1,2; Yin, Xuebo 1
	2018-06-01
发表期刊	FRONTIERS OF EARTH SCIENCE
ISSN	2095-0195
卷号	12 期号:2 页码:325-338
通讯作者	Zeng, Zhigang([email protected])
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.
关键词	Okinawa Trough rhyolite andesite remelting fractional crystallization
DOI	10.1007/s11707-017-0638-z
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2013CB429700]###86; National Natural Science Foundation of China[41325021]###42; Special Fund for the Global Change and Air-Sea Interaction Project[GASI-GEOGE-02]###87; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11030302]###45; Special Fund for the Taishan Scholar Program of Shandong Province[ts201511061]###47; Qingdao National Laboratory for Marine Science and Technology[2015ASTP-0S17]###49; Qingdao National Laboratory for Marine Science and Technology[2015ASKJ03]###50; Qingdao National Laboratory for Marine Science and Technology[2016ASKJ13]###51; Innovative Talent Promotion Program[2012RA2191]###52; Science and Technology Development Program of Shandong Province[2013GRC31502]###53; National High Level Talent Special Support Program###88; CAS/SAFEA International Partnership Program for Creative Research Teams###89; Qingdao Collaborative Innovation Center of Marine Science and Technology###90; 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
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000432334400006
出版者	SPRINGER
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/154692
专题	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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