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辽东半岛是我国同位素地质年代学研究程度较深的地区之一,单是采自该区辽河群和鞍山群样品的K-Ar法年龄数掘就有160多个,占全省现有各种年龄数据的三分之一以上.随着同位素地质年代学的发展和野外地质研究程度的提高,人们对这些古老地层的沉积和变质历史的认识愈来愈趋一致.然而,在辽东鞍山群和辽河群同化素年龄数据中,还存在许多难于解释的问题:1.旅大地区大片鞍山群的K-Ar法年龄数据(100～200百万年)与野外观察不相
The Liaodong Peninsula is one of the areas where the degree of isotopic geochronology in China is quite deep. More than 160 K-Ar dating methods were collected from Liaohe Group and Anshan Group in this area alone, accounting for more than 160 More than one third of the age data.With the development of isotope geochronology and the increasing degree of field geological research, people’s understanding of the sedimentary and metamorphic history of these ancient formations is more and more consistent.However, There are still many difficult problems to be solved in the Liaohe cluster meta-analysis of age data: 1. The K-Ar dating of the large Anshan cluster in the Luda area (100-200 million years) is not in agreement with the field observations