Crustal evolution of the Shiwandashan area in South China: Zircon U-Pb-Hf isotopic records from granulite enclaves in Indo-Sinian granites
作者: Liang ZhaoFeng GuoWeiMing FanChaoWen LiXiaoFeng QinHongXia Li
作者单位: 1Key Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
2Graduate University of Chinese Academy of Sciences
3Institute of Mineral Resources Chinese Academy of Geological Sciences
刊名: Chinese Science Bulletin, 2010, Vol.55 (19), pp.2028-2038
来源数据库: Springer Journal
DOI: 10.1007/s11434-010-3225-1
关键词: crustal evolutionzircon U-Pb agezircon Hf isotopegranulite enclavesShiwandashan
英文摘要: Abstract(#br)U-Pb dating coupled with Hf isotope analyses on zircon from metasedimentary granulite enclaves in the Jiuzhou peraluminous granite from the Shiwandashan area in southeastern Guangxi Province, South China are presented in this paper. The results show that the protoliths of these granulite enclaves were mainly composed of Neo-Mesoproterozoic (564–1061 Ma) clastic materials with a peak age at ∼822 Ma. These materials were probably derived from the igneous rocks that were emplaced during the Neoproterozoic breakup of Rodinian Supercontinent. Subordinate sediments include the Paleoproterozoic (1778–2227 Ma) and even the Meso-Paleoarchean materials with the oldest U-Pb age at 3551±8 Ma, indicating the existence of ancient crustal rocks in the area and/or its surrounding regions....
全文获取路径: Springer  (合作)
影响因子:1.319 (2012)

  • isotopic 同位素置换
  • granulite 麻粒岩
  • Sinian 震旦纪
  • records 案卷
  • evolution 进化
  • China 中国