摘要
发育在赣南地区的寻乌岩群,为一套中深变质岩系,前人归属寒武纪。在1∶5万小江图组区调工作中,通过岩石地层、变质变形构造特征及侵位于其中的片麻状花岗岩同位素年代地质学研究,将其时代重新厘定为古元古代。这一认识为探讨华夏古陆结晶基底及华南大地构造演化提供了新的资料。
Xunwu rock Group in southern Jiangxi Province consists of mesometamorphic rock series,belonging to Cambrian. In 1∶50 000 regional geological survey of Xiaojiang sheet series,the stratum is redefined to Paleoproterozoic according to lithostratigraphic and metamorphic and deformational structures, and the isotopic chronologic data of intrusived gneissic granite. New data are proposed in this paper for discuss crystalline basement of Cathaysia and geotectonic evolution in South China.
出处
《资源调查与环境》
2003年第4期244-250,共7页
Resources Survey & Environment
关键词
赣南
寻乌岩群
古元古代
变质岩
South Jiangxi Province, Xunwu rock group, Paleoproterozoic, metamorphic rocks
