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对辽东中部地区的区域铀矿地质特征、成矿条件及成矿远景进行了比较系统的研究,论证了该地区太古宙基底特殊类型的花岗-绿岩带中的花岗质岩石以混合岩化成因的混合花岗岩为主,绿岩带变质较深;进行了大量锆石铀-铅同位素地质年代学研究,建立了新的前寒武纪地质年表,证明了该区早前寒武纪基底及原地台在早元古代期间就发生了多期活化;重点研究了该区花岗-绿岩地体及下元古界的铀、钍丰度及其变化,以及岩石的原始铀含量,并发现在花岗质岩石中都或多或少地含有以副矿物形式存在的晶质铀矿;论证了该区早前寒
This paper systematically studies the regional uranium geological features, metallogenic conditions and metallogenic prospect in the central part of eastern Liaodong. It is demonstrated that the granitic rocks in the special type of granito-greenstone belt in the Archean basement in this area are characterized by mixed rocks And the metamorphic mixed granite is the dominant one. The greenstone belt degenerates deeply. A large amount of zircon uranium-lead isotope geological chronology has been studied and a new Precambrian geological chronology has been established. It is proved that the Early Precambrian During the Early Proterozoic period, the basement and the original platform were multi-stage activated. The concentrations of uranium and thorium in the granite-greenstone terrane and the Lower Proterozoic in this area, and their variations, as well as the original uranium content of the rocks, And found that all the granitic rocks contain more or less crystalline uranium ore as an accessory mineral.