IOCAS-IR  > 海洋地质与环境重点实验室
A complex magmatic system beneath the middle and northern Okinawa Trough: evidence from pyroxene characteristics
Liao, Renqiang1,3; Huang, Peng1,2; Hu, Ningjing4
2017-11-01
发表期刊GEOLOGICAL JOURNAL
卷号52期号:6页码:1059-1068
文章类型Article
摘要The Okinawa Trough is an initial marginal back-arc basin. In this paper, we present a comparative study of pyroxenes in white and black pumice from the Okinawa Trough to explore the magmatic evolution of the region and the characteristics of the magmatic system. The results show two species of pyroxenes in the white pumice (clinopyroxene and orthopyroxene) but only one species in the black pumice (orthopyroxene). Many isomorphic replacements among the cations occurred during clinopyroxene crystallization. Clinopyroxene-melt thermobarometry yielded a temperature of 847-988 degrees C and a pressure of 2.73-7.42kbar, which vary considerably and correspond to a maximum depth of approximately 24km. All of the orthopyroxenes in both the white and black pumice crystallized at similar pressures ranging from 0.67 to 4.59kbar, which correspond to a maximum depth of approximately 15km. The clinopyroxenes crystallized mainly in the lower crust, whereas the orthopyroxenes formed at the boundary depth between the upper crust and the lower crust. The similarities in the pyroxene chemical compositions and the whole-rock characteristics between the two types of pumice indicate that both types of pumice are linked to the same magmatic system at depth. The pyroxenes crystallized from genetically related melts within a magmatic system that had undergone various degrees of differentiation. The physicochemical characteristics of the pyroxenes show that the magma chamber module changed during the crystallization process from clinopyroxenes to orthopyroxenes. This change most likely resulted from local characteristics of the near-surface structure. These observations support the model of a two-layered magma chamber' in the northern Okinawa Trough. Copyright (c) 2016 John Wiley & Sons, Ltd.
关键词Okinawa Trough Pumice Pyroxene Magma System Magma Chamber Physical Process
DOI10.1002/gj.2873
收录类别SCI
语种英语
WOS记录号WOS:000414915500012
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143056
专题海洋地质与环境重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentary & Environm Geol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714
Liao, Renqiang,Huang, Peng,Hu, Ningjing. A complex magmatic system beneath the middle and northern Okinawa Trough: evidence from pyroxene characteristics[J]. GEOLOGICAL JOURNAL,2017,52(6):1059-1068.
APA Liao, Renqiang,Huang, Peng,&Hu, Ningjing.(2017).A complex magmatic system beneath the middle and northern Okinawa Trough: evidence from pyroxene characteristics.GEOLOGICAL JOURNAL,52(6),1059-1068.
MLA Liao, Renqiang,et al."A complex magmatic system beneath the middle and northern Okinawa Trough: evidence from pyroxene characteristics".GEOLOGICAL JOURNAL 52.6(2017):1059-1068.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A complex magmatic s(497KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Liao, Renqiang]的文章
[Huang, Peng]的文章
[Hu, Ningjing]的文章
百度学术
百度学术中相似的文章
[Liao, Renqiang]的文章
[Huang, Peng]的文章
[Hu, Ningjing]的文章
必应学术
必应学术中相似的文章
[Liao, Renqiang]的文章
[Huang, Peng]的文章
[Hu, Ningjing]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A complex magmatic system beneath the middle and northern Okinawa.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。