Abstract:
The Zhangbaling blueschist belt in central Anhui contains the jadeite and quartz assemblage.Situated on the northern margin of the Yangtze block,it is a highest pressure belt among the blueschist belts in China.On the basis of the mineral assemblages,the belt may be divided into five mineral zones:the stilpnomelane muscovite zone,piemontite muscovite zone,glaucophane crossite zone,actinote zone and muscovite zone.The authors discuss the mechanism of the uplift of the blueschist to the surface possibly due to underplating.