• 中文核心期刊
  • 中国科技核心期刊
  • 中国科学引文数据库核心期刊
Quick Search Issue Search Advanced Search
WANG Hong-liang, XIAO Shao-wen, XU Xue-yi, LI Wan-zhong, HE Shi-ping, CHEN Jun-lu, CHEN Liang. 2008: Geochronology and significance of the early Mesoproterozoic tectono-magmatic event in the western segment of the North Qinling Mountains. Geological Bulletin of China, 27(10): 1728-1738. DOI: 10.12097/gbc.20081015
Citation: WANG Hong-liang, XIAO Shao-wen, XU Xue-yi, LI Wan-zhong, HE Shi-ping, CHEN Jun-lu, CHEN Liang. 2008: Geochronology and significance of the early Mesoproterozoic tectono-magmatic event in the western segment of the North Qinling Mountains. Geological Bulletin of China, 27(10): 1728-1738. DOI: 10.12097/gbc.20081015
shu

Geochronology and significance of the early Mesoproterozoic tectono-magmatic event in the western segment of the North Qinling Mountains

  • Xi’an Institute of Geology and Mineral Resources,2 State Key Laboratory of Northwest University Continental Dynamics, 3 Guangxi Institute of Geophysical Survey,4 No. 2 Geological Party，Henan Bureau of Geology and Mineral Exploration and Development

More Information
    Graphical Abstract
    • Abstract
  • Two early Mesoproterozoic granite intrusions—the Gongjiangou deformation intrusion in the Taibai batholith and Hudian deformation intrusion in the BaoJi batholith—are for the first time identified in Baoji in the western segment of the North Qinling orogenic belt. Their protoliths are both medium- and fine-grained monzogranite. The authors studied the features of CL images of zircons and analyzed their origin. U-Pb LA-ICPMS dating of zircons yielded magmatic crystalline ages of 1741±12 and 1770±13) Ma. Both petrological and geochemical data show that: the deformation intrusions formed in a subduction-collision environment at plate margins and the magma originated by partial melting, which shows that there occurred a strong tectono-magmatic event in the western segment of the North Qinliing orogenic belt in the early Mesoproterozoic. The LA-ICPMS U-Pb dating zircon age (450.5±1.8 Ma) of the Gongjiangou deformation intrusion in Taibai and Hudian deformation intrusion in BaoJi and the age (1765 Ma±8 Ma) of zircons captured in the Honghuapu tonalite in Fengxian, Shaanxi, provide a basis for defining the time range of the early Mesoproterozoic Lüliangian tectono-magmatic event in the western segment of the North Qinling (~1.8 Ga). Based on an analysis of the tectonic attribute of the western segment of the North Qinling orogenic belt, the authors suggest that the nearly 1.8 Ga tectono-magmatic event might be the response of the convergence of the supercontinent Columbia in the western segment of the North Qinling orogenic belt.
    • FullText(HTML)
    • References (0)
    • Related Articles

  • Related Articles

    MA Fucai, LI Peng, YANG Wen, LIU Xianchuan. 2018: The discovery of Middle Permian strata in Chunzhe area Xietongmen, Tibet. Geological Bulletin of China, 37(7): 1197-1201. DOI: 10.12097/gbc.dztb-37-7-1197
    XING Li-da, Jerald D.Harris, Philip J. Currie. 2011: 中国西藏恐龙足迹的首次记录. Geological Bulletin of China, 30(1): 173-178. DOI: 10.12097/gbc.20110119
    DAI Jing-jing, QU Xiao-ming, XIN Hong-bo. 2010: Extraction of alteration mineral information using ASTER remote sensing data in Duolong area, Tibet, China.. Geological Bulletin of China, 29(5): 752-759. DOI: 10.12097/gbc.20100516
    WANG Hui, ZHAO Bing. 2010: Features and formation time of Mangxiang Formation in Duosang graben of Ngangla Ringco area, western Tibet, China. Geological Bulletin of China, 29(4): 544-548. DOI: 10.12097/gbc.20100408
    ZHAO Bing, ZHAO Yu-feng. 2007: Characteristics and spatial variation of the Lower Cretaceous lithostratigraphy in the Ngangla Ringco area, western Tibet, China. Geological Bulletin of China, 26(4): 433-440. DOI: 10.12097/gbc.20070470
    LIAO Zhong-li, MO Xuan-xue, PAN Gui-tang, ZHU Di-cheng, WANG Li-quan, ZHAO Zhi-dan, JIANG Xin-sheng. 2006: On peraluminous granites in Tibet, China.. Geological Bulletin of China, 25(7): 812-821. DOI: 10.12097/gbc.200607147
    ZHAO Bing, LIU Deng-zhon, TAO Xiao-fen, MA Run-ze, HU Xin-wei. 2006: Stratigraphy and sedimentary environment of the Laka Formation in the Ngangla Ringco-Taro Co area, Zhongba County, Tibet, China.. Geological Bulletin of China, 25(7): 800-805. DOI: 10.12097/gbc.200607145
    2005: Analysis of Quaternary gravels in the Zhanda basin, Ngari area, Tibet, China.. Geological Bulletin of China, 24(7): 630-636. DOI: 10.12097/gbc.200507127
    ZHAI Qingguo, LI Cai, CHENG Liren, ZHANG Yichun. 2004: Geological features of Permian ophiolite in the Jiaomuri area,Qiangtang, Tibet, and its tectonic significance. Geological Bulletin of China, 23(12): 1228-1230. DOI: 10.12097/gbc.2004012221
    ZHU Dagang, Zhao Xitao, MENG Xiangang, et al.. 2002: Division of Quaternary lacustrine strata in the Nam Co area and establishment of the Nam Co Group in Tibet. Geological Bulletin of China, 21(11): 708-716. DOI: 10.12097/gbc.2002011161

Catalog

    Get Citation
    PDF
    XML
    Article views (2534) PDF downloads (1254) Cited by()
    Turn off MathJax
    Article Contents
    Abstract
    Related Articles

    Copyright © 2023 ditorial Department of Geological Bulletin of China

    Address：45 Fuwai Street, Xicheng District, Beijing China Geological Survey Development Research Center  Postal Code：100037

    Tel：010-58584206；010-58584208；010-58584208  Email：dzhtb@263.net

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return