Journal of Jilin University(Earth Science Edition) ›› 2018, Vol. 48 ›› Issue (2): 574-586.doi: 10.13278/j.cnki.jjuese.20170249

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Gaojiadian Granite and Shepantu Granite in Eastern Hebei Province: Chronology, Geochemistry and Geological Significances

Yin Yechang1, Hao Libo1, Zhao Yuyan1, Shi Houli2, Tian Wu1, Zhang Yuhua3, Lu Jilong1   

  1. 1. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China;
    2. No.5 Exploration Institute of Geology and Mineral Resources, Tai'an 271021, Shandong, China;
    3. Institute of Geological, Geophysical and Geochemical Exploration, Yunnan Nonferrous Metals Geological Bureau, Kunming 650216, China
  • Received:2017-09-30 Online:2018-03-26 Published:2018-03-26
  • Supported by:
    Supported by National Key Research and Development Program (2016YFC0600606) and Specific Funds of Ministry of Land and Resources (SinoProbe-04-05-02)

Abstract: Jidong region, located in the North China platform and eastern Yanshan platform fold belt, is one of the important metallogenetic gold provinces in China. There are plenty of granites in this region, such as Dushan granitic batholith, Shepantu granite batholith, Qingshankou, Gaojiadian, Jiajiashan, Yuerya, and Luowenyu granites. The LA-MC-ICP-MS zircon U-Pb ages of the Gaojiadian and Shepantu granites show that the formationtime of the Gaojiadian granite is (198.8±0.75) Ma,and the Shepantu granite is (184.7±1.0) Ma, belonging to the Early Jurassic of Yanshanian. In the study area, the rocks are of I-A transition type with weakly peraluminous characteristic and high-K calc-alkaline. Among them the Early Jurassic granitoids is much more enriched in (Na2O+K2O), LILE and LREE, and poor in HFSE. Besides, it has obvious negative europium anomaly with the δEu of 0.14-0.82. All these show that the diagenetic material came from the shell and mineralized after the collision.

Key words: eastern Hebei Province, granite, LA-MC-ICP-MS zircon U-Pb dating, geochemical characteristics, tectonic environments, gold deposit

CLC Number: 

  • P59
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