胶东西北部地区同位素地质年代学研究

STUDY ON THE ISOTOPE CHRONOLOGY OF THE ROCKS IN THE NORTHWESTERN JIAODONG DISTRICT, SHANDONG PROVINCE

摘要:

Abstract:

It is known from the regional geological surveying recently in Northwestern Jiaodong that the oldest isotopic age value of the Archaeozoic Jiaodong Group, a metamorphic complex, is only 1664 Ma and that the isotopic age value of the Linglong granite complex varies from 46 to 476 Ma. Obviously, these age values are not consistent with the geological characters of the corresponding geological bodies. The author s study indicates that both the Jiaodong Group and the Linglong granite complex were metamorphosed ...