吉中地区晚古生代石炭纪壳层的产生演化及矿化特征

THE FORMATON AND EVOLUTION OF THE CRUST BEDDING OFTHE CARBONIFEROUS, LATE PALEOZOIC IN THECENTRAL PART OF JILIN PROVINCE ANDITS METALLOGENITIC CHARACTERISTICS

吉中地区晚古生代石炭纪壳层是在早古生代晚期基底陆壳拉张—塌陷的基础上接受沉积，并固结成壳，后又经挤压—聚拢—抬升，最终成陆，拉张阶段形成拉张型过渡壳，挤压汇聚阶段形成汇聚型过渡壳，又以早三叠世末的大规模造山运动结束为标志进入新陆壳阶段。不同阶段形成的岩石组合类型、侵入岩及矿化类型均有较大的差别。

The Carbonifous crust bedding,late Paleozoic in the central part of Jilin province were deposited and formed on the basis of extension-collapse of late atage of early Paleozoic basal continental crust. Later on ,through the compression-convergency-uplift, and finaly,the continental crust was formed. The tensional intermediate crust was formed in extensional stage and convergenting intermediate crust,in conpressional convergent stage. The new continental crust stage started with the indication of the end of maga-orogenic movement.The rock association types, intrusive rocks and mineralized types are relatively different in different stages.