摘要
This paper deals, on the basis of abundant lithogeochemical and geochronologic data, with the reconstruction of the Neoproterozoic tectonic evolution in the Xuefeng orogenic zone and its southeastern margin. The Neoproterozoic tectonic evolution suggests the island arc accretion on the southeastern margin of the Yangtze landmass, and overlapping of the Xuefengian and Nanhuan deposits upon the Huanan residual oceanic basin.