• 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
WANG Xiao-lei, SHU Xu-jie, XING Guang-fu, XIE Si-wen, ZHANG Chun-hui, XIA Han. 2012: LA-ICP-MS zircon U-Pb ages of the Shijiao-Huangshan intrusive rocks in Zhuji area, Zhejiang Province: implications for the petrogenesis of the ultramafic orbicular rocks. Geological Bulletin of China, 31(1): 75-81. DOI: 10.12097/gbc.20120108
Citation: WANG Xiao-lei, SHU Xu-jie, XING Guang-fu, XIE Si-wen, ZHANG Chun-hui, XIA Han. 2012: LA-ICP-MS zircon U-Pb ages of the Shijiao-Huangshan intrusive rocks in Zhuji area, Zhejiang Province: implications for the petrogenesis of the ultramafic orbicular rocks. Geological Bulletin of China, 31(1): 75-81. DOI: 10.12097/gbc.20120108

LA-ICP-MS zircon U-Pb ages of the Shijiao-Huangshan intrusive rocks in Zhuji area, Zhejiang Province: implications for the petrogenesis of the ultramafic orbicular rocks

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  • LA-ICP-MS zircon U-Pb dating work was carried out for the Shijiao-Huangshan intrusive rocks from Zhuji area of Zhejiang Province, which is also tectonically adjacent to the Jiangshan-Shaoxing fault of eastern Jiangnan orogen. The dating results indicate that the Shijiao amphibole pyroxenite and Huangshan quartz diorites were crystallized at 844±3 Ma and 818±6 Ma, respectively, suggesting that they, including the Shijiao orbicular perknites, were probably formed in different periods. Combined with other new available dating results, the authors hold that the Neoproterozoic diorites along the Jiangshan-Shaoxing fault might have been formed during the span of ca. 930-810 Ma. Further studies of the petrology and petrogenesis of the ultramafic rocks and diorites will shed light on the Neoproterozoic amalgamation processes between the Yangtze and Cathaysia blocks.
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