摘要
通过详细的构造岩石单位填图及岩石同位素地球化学特征的研究,首次在东昆仑东段白日其利麻粒岩和超基性岩中相继发现了32～35亿年的古老岩石同位素年龄值,提出了青海境内出露有太古代地层,确立了东昆仑微陆核踪迹的存在。
Based on the mapping with tecto-petrologic unit and study of isotope geo- chemistry,the ancient rocks with isotope age of 3200～3500Ma were firstly found in Bairiqili granulites and ultrabasie rocks in the east sector of East Kunlun.So the Arehaean strata were cropped out in Qinghai province and the traces of East kunlun micro-continental nueleus can be followed.
出处
《青海地质》
2000年第2期36-41,64,共7页
