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  5. Muti-element geochemical modeling of partial melting of amphibolite during late-Archean crustal grow

Muti-element geochemical modeling of partial melting of amphibolite during late-Archean crustal grow

来源 :The International Conference on Continental Dynamics(2014年大陆 | 被引量 : 0次 | 上传用户：sflljlove
【摘 要】
：
Archean rocks are widely distributed in the North China Craton (NCC),most underwent amphibolite to granulite facies metamorphism.The evidences from chemical and geochronological data have been demonst
【作 者】
：
Lei Liu Xiao-Yong Yang 
【机 构】
：
CAS Key Laboratory of Crust-Mantle Materials and Environments,School of Earth and Space Sciences,Uni
【出 处】
：
The International Conference on Continental Dynamics(2014年大陆
【发表日期】
：
2014年5期
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论文部分内容阅读
Archean rocks are widely distributed in the North China Craton (NCC),most underwent amphibolite to granulite facies metamorphism.The evidences from chemical and geochronological data have been demonstrated the main crustal growth episode is at late-Archean (2.7-2.5Ga).Huoqiu Group located within southeastern margin of the NCC,where the Early Precambrian basement is dominated by late-Archean grey gneisses,amphibolites and metasediments.The gneisses are similar with TTG in compositions and interlayer with amphibolites.Igneous zircon age of gneisses and amphibolites are 2.86 and 2.75 Ga,respectively,indicating their protolith ages.
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