首页 > 过刊浏览>2021年第95卷第2期 >370-392. DOI:10.1111/1755-6724.14652
PDF HTML阅读 XML下载 导出引用 引用提醒
The Geological Significance of the Deformation and Geochronology of the Xiaotian–Mozitan Shear Zone in the Dabie Orogenic Belt (East-Central China)
作者:

The Geological Significance of the Deformation and Geochronology of the Xiaotian–Mozitan Shear Zone in the Dabie Orogenic Belt (East-Central China)
Author:
  • HUANG Peng

    HUANG Peng

    1 State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China；2 Xinjiang Research Center for Mineral Resources,Chinese Academy of Sciences, Urumqi 830011,China；3 Xinjiang Key Laboratory of Mineral Resources and Digital Geology,Urumqi 830011,China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • SONG Chuanzhong

    SONG Chuanzhong

    4 School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • XIAO Wenjiao

    XIAO Wenjiao

    2 Xinjiang Research Center for Mineral Resources,Chinese Academy of Sciences,Urumqi 830011,China；5 State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100049, China；6 College of Earth and Planetary Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China；7 Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Science, Chinese Academy of Sciences, Beijing 100101, China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • LI Jiahao

    LI Jiahao

    4 School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • ZHOU Kefa

    ZHOU Kefa

    1 State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China；2 Xinjiang Research Center for Mineral Resources,Chinese Academy of Sciences, Urumqi 830011,China；3 Xinjiang Key Laboratory of Mineral Resources and Digital Geology,Urumqi 830011,China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • WANG Jinlin

    WANG Jinlin

    1 State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China；2 Xinjiang Research Center for Mineral Resources,Chinese Academy of Sciences, Urumqi 830011,China；3 Xinjiang Key Laboratory of Mineral Resources and Digital Geology,Urumqi 830011,China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • NIJIATI Abuduxun

    NIJIATI Abuduxun

    1 State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China；2 Xinjiang Research Center for Mineral Resources, Chinese Academy of Sciences, Urumqi 830011, China；8 Xinjiang Key Laboratory for Geodynamic Processes and Metallogenic Prognosis of the Central Asian Orogenic Belt, School of Geology and Mining Engineering, Xinjiang University, Urumqi 830046, China
    在期刊界中查找
    在百度中查找
    在本站中查找
  • LI Zhenwei

    LI Zhenwei

    4 School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
    在期刊界中查找
    在百度中查找
    在本站中查找
Fund Project:

This study was financially supported by the High Level Talent Introduction Program of Xinjiang Uyghur Autonomous Region 2018,the National Postdoctoral Program (2018M643776),the Key R & D Program of China (2017YFC0601206).This is a contribution to IGCP 662.Our sincere thanks are due to Prof. Wang Daoxuan,Dr.Li Hailong and Dr.Wang Yangyang for their help in the fieldwork.We are also deeply grateful to Prof.Shi Yonghong and Dr.Juan Wang for their assistance in EPMA performance.We also wish to express our gratitude to Prof.Li Quanzhong and Dr.Liu Xiaoqiang,for their support in zircon dating work.

  • 摘要
    • | |
  • 访问统计
    • |
  • 参考文献
    • |
  • 相似文献
    • |
  • 引证文献
    • | |
  • 文章评论
    摘要:

    Abstract:

    The Xiaotian–Mozitan Shear Zone (XMSZ) is the boundary of the Dabie High-grade Metamorphic Complex (DHMC) and the North Huaiyang Tectonic Belt.It was deformed in ductile conditions with a top-to-NW/WNW movement.Geothermometers applied to mineral parageneses in mylonites of the shear zone give a temperature range of 623–691°C for the predeformation and 515–568°C for the syndeformation,respectively, which indicates a retrograde process of evolution.A few groups of zircon U-Pb ages were obtained from undeformed granitic veins and different types of deformed rocks in the zone.Zircons from the felsic ultramylonites are all magmatic,producing a weighted mean 206Pb/238U age of 754 ± 8.1 Ma,which indicates the time of magmatic activities caused by rifting in the Neoproterozoic.Zircons from the granitic veins,cutting into the mylonites,are also of magmatic origin,producing a weighted mean 206Pb/238U age of 130 ± 2.5 Ma,which represents the time of regional magmatic activity in the Cretaceous.Zircons from the mylonitic gneisses are of anatectic-metamorphic origins and are characterized by a core-mantle interior texture,which yielded several populations of ages including the Neoproterozoic ages with a weighted mean 206Pb/238U age of 762 ± 18 Ma, similar to that of the felsic ultramylonites and the Early Cretaceous ages with a weighted mean 206Pb/238U age of 143 ± 1.8 Ma,indicating the anatectic metamorphism in the Dabie Orogenic Belt (DOB).Based on integrated analysis of the structure,thermal conditions of ductile deformation and the contact relations of the dated rocks,the activation time of the Xiaotian–Mozitan Shear Zone is constrained between ~143 Ma and 130 Ma,during which the DOB was undergoing a transition in tectonic regime from compression to extension.Therefore,the deformation and evolution of this shear zone plays an instrumental role in fully understanding this process.This research also inclines us to the interpretation of it as an extensional detachment,with regard to the tectonic properties of the shear zone.It may also be part of a continental scale extension in the background of the North China Block’s cratonic destruction,dominated by the subduction and roll-back of the Paleo-Pacific plate,but more detailed work is needed in order to unravel its complicated development.

    参考文献
    相似文献
    引证文献
引用本文

HUANG Peng, SONG Chuanzhong, XIAO Wenjiao, LI Jiahao, ZHOU Kefa, WANG Jinlin, NIJIATI Abuduxun, LI Zhenwei.2021. The Geological Significance of the Deformation and Geochronology of the Xiaotian–Mozitan Shear Zone in the Dabie Orogenic Belt (East-Central China)[J]. ACTA GEOLOGICA SINICA(English edition),95(2):370~392

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-05-28
  • 最后修改日期:2020-01-02
  • 在线发布日期: 2021-04-27
文章二维码
您是第 位访问者
主管单位：中国科学技术协会
主办单位：中国地质学会
地址：北京市阜成门外百万庄26号
电话：010-68999024

京公网安备 11000002000088号 | 京ICP备11041704号
地质学报（英文版） ® 2025 版权所有