中国科学院青藏高原研究所机构知识库
Advanced  
ITPCAS OpenIR  > 图书馆  > 期刊论文
学科主题: 地球科学::地质学
题名: P-T-t-D paths of the North Himalayan metamorphic rocks: Implications for the Himalayan orogeny
作者: Ding, HX (Ding, Huixia)1; Zhang, ZM (Zhang, Zeming)1, 2; Hu, KM (Hu, Kaiming)3; Dong, X (Dong, Xin)1; Xiang, H (Xiang, Hua)1; Mu, HC (Mu, Hongchen)4
通讯作者: Zhang, ZM
刊名: TECTONOPHYSICS
发表日期: 2016
DOI: 10.1016/j.tecto.2016.06.035
卷: 683, 期:0, 页:393-404
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: Metamorphic P-T-t-D paths have been determined in the Yardoi gneiss dome of the eastern Himalaya that place new constraints on the genesis of the North Himalayan Gneiss Dome and tectonic evolution of the Himalayan orogen. Our study shows that the schists from the Yardoi dome underwent at least three stages of metamorphism and deformation. The first stage of prograde metamorphism is represented by the core of porphyroblastic garnet, showing distinct growth compositional zoning, and hosting mineral inclusions of biotite, muscovite, quartz and ilmenite; the curved inclusion trails define the first stage of deformation foliation (S1). The second stage of peak metamorphism is represented by the rim of porphyroblastic garnet and the aligned matrix minerals of biotite, muscovite, plagioclase, quartz, kyanite and staurolite, which define the main deformation foliation (S2), The third stage of retrograde metamorphism is characterized by occurrence of biotite, plagioclase, muscovite and sillimanite within the distributed shear bands, which define the late deformation foliation (S3). Phase equilibrium modeling reveals that Yardoi schists witnessed a peak metamorphism of upper amphibolite-facies under P-T conditions of 7-8 kbar and 615-665 degrees C, and records a clockwise P-T-t-D path with a prograde process of both temperature and pressure increase and subsequent retrogression of isothermal decompression. The zircon U-Pb dating indicates that the prograde process occurred during the Middle Eocene of 48-36 Ma and the retrograde metamorphism probably lasted to ca. 16 Ma. The present result shows that the formation of the Yardoi schists was related to the subduction and exhumation of Indian crust, the initial collision of Indian and Asian continents occurred at ca. 50 Ma, the northeastern margin of the Indian continent was shallowly underthrusted beneath the Asian continent, and distinct tectonic discontinuity is present in the Greater Himalayan Sequence. (C) 2016 Elsevier B.V. All rights reserved.
语种: 英语
WOS记录号: WOS:000382343700027
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7672
Appears in Collections:图书馆_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
V.683 393-404 2016.pdf(1519KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: 1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Key Lab Continental Collis & Plateau Uplift, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
3.Zhejiang Inst Geol Survey, Hangzhou 311203, Zhejiang, Peoples R China
4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China

Recommended Citation:
Ding, HX ,Zhang, ZM ,Hu, KM ,et al. P-T-t-D paths of the North Himalayan metamorphic rocks: Implications for the Himalayan orogeny[J]. TECTONOPHYSICS,2016,683(0):393-404.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Ding, HX (Ding, Huixia)]'s Articles
[Zhang, ZM (Zhang, Zeming)]'s Articles
[Hu, KM (Hu, Kaiming)]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Ding, HX (Ding, Huixia)]‘s Articles
[Zhang, ZM (Zhang, Zeming)]‘s Articles
[Hu, KM (Hu, Kaiming)]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: V.683 393-404 2016.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院青藏高原研究所 - Feedback
Powered by CSpace