【摘 要】
：
The North China Craton (NCC) is characterized by major～2.5 Ga tectono-thermal events and is thus different from many other cratons worldwide where～2.7 Ga events are well developed.However,whole-rock N
【机 构】
：
Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;Beijing SHRIMP Cent
【出 处】
：
The International Conference on Continental Dynamics(2014年大陆
论文部分内容阅读
The North China Craton (NCC) is characterized by major～2.5 Ga tectono-thermal events and is thus different from many other cratons worldwide where～2.7 Ga events are well developed.However,whole-rock Nd and Hf-in-zircon isotopic compositions of～2.5 Ga crustallyderived granitoids reveal that they mainly formed through reworking of late Mesoarchean to early Neoarchean continental material.We review the spatial distribution,rock types,geochemical and Nd-Hf isotopic compositions of～2.7 Ga granitiods that are widely identified in the NCC,including eastern Shandong,western Shandong,Huoqiu,Hengshan,Fuping,Zanhuang,Zhongtiao and Wuchuan.These granitoids are mainly tonalitic in composition and frequently underwent strong metamorphism,deformation and anatexis.
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