摘要
Objective Early Precambrian rocks are widely distributed in the khondalite series belt of the North China Craton(NCC),and previous studies have shown that the metamorphic ages of^2.5 Ga and^1.95 Ga are widespread.
基金
supported by the National Natural Science Foundation of China(grants No.41872194,41872203)
作者简介
Corresponding author:XU Zhongyuan,E-mail:xuzy@jlu.edu.cn
