Mesozoic volcanism surrounding Songliao basin, China: implication for the relationship with evolution of basin

摘要

Mesozoic volcanic rocks developed on the basement of the Precambrian block and Hercynina orogenic belt surrounding Songliao basin. The volcanism was actived from Early Jurassic to Late Cretaceous with its peak time in J_3 -K_1 and the rock types are dominated by high K calc-alkaline series, partly consisting of shoshonitic and calc-alkaline series.