JIANG Yao-hui, WANG Guo-chang

State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China

Abstract：During late Mesozoic times, extensive magmatism took place in SE China, forming widespread granitoids. Recently, we identify a series of Early Jurassic mafic rocks and A-type granites in southern Jiangxi and western Fujian provinces. The Early Jurassic A-type granites occur as a NE-trending belt. By integrated previously published data, we find that there are other three A-type granite belts in SE China, i.e., the Late Jurassic, Early Cretaceous, and Late Cretaceous A-type granite belts, respectively, all of which are NE-trending, parallel to the present coastline. The Late Jurassic belt is located further inland, to the west of the Early Jurassic belt, whereas the Early Cretaceous belt almost overlaps the Early Jurassic belt and the Late Cretaceous belt is located at the coastal area of SE China. Integrated these observations, we propose a repeated slab-advance-retreat model for the late Mesozoic magmatic evolution of SE China.

Key words：late Mesozoic granites geodynamics slab-advance-retreat Palaeo-Pacific plate SE China

E-Mail: yhj186@hotmail.com  

Bulletin of Mineralogy, Petrology and Geochemistry Vol.35, No.6, 2016, page 1073-1081