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浙江元古宙花岗岩类包括神功期(1.8-1.9Ga)和晋宁晚期(0.6—0.9Ga)。研究了浙江元古宙花岗岩类的主元素、微量元素、稀土元素和Rb、Sr同位素组成特征及岩石成因,探讨了浙江地壳的演化。浙江地壳形成于太古亩和元古宙,地壳增生的时期为2.6-2.7、0.8-1.1和0.1-0.12Ga。随时间演化浙江地壳组成有变化,但分异演化不明显。沿江-绍断裂分布的晋宁晚期慢源和壳幔混合中酸性岩是普宁期俯冲碰撞的证据。加里乐和印支期是两次规模不大的构造运动。
The Proterozoic granitoids in Zhejiang include the epoch stage (1.8-1.9Ga) and the late Jinning period (0.6-0.9Ga). The main elements, trace elements, rare earth elements, Rb and Sr isotopic composition and petrogenesis of the Proterozoic granitoids in Zhejiang Province were studied, and the evolution of the crust in Zhejiang Province was discussed. Zhejiang crust was formed in the Pacific and Proterozoic Archean, crustal growth period of 2.6-2.7,0.8-1.1 and 0.1-0.12Ga. Evolution of Zhejiang crustal composition has changed over time, but differentiation is not obvious. Late Yanjin-Yanning acidic crust mixed with the late Jinning-Shaoxing fault in the Jinning basin is evidence of subduction collisions in Puning. Gary Le and Indosinian are two minor tectonic movements.