Aftercxperiencingaseriesofgeoteetonicdevelopmentstagesofpregeosyncline,geosynclineandplatformctc’,thisarcaturncdintoadiwarcgioninMcsozoicandCenozoicera-ItmaybepidedintotwogcodomesyStemsofJiangnan,GanyUeandthrcegeodepressionsyStcmsofXianggui,QianguiMinchcandfourcorrespondinguraniummcta1logenicbelts