SEDIMENTARY EVOLUTION AND STRUCTURAL BACKGROUND OF THE PERMIAN SYSTEM ON THE BOUNDARY OF JIANGSU—ZHEJIANG—ANHUI PROVINCES

The paper discusses the lateral and vertical sedimentary features of the Pemian System developed during the stages of Qixia,Maokou and Changxing on the boundary of Jiangsu-Zhejiang-Anhui province. It is suggested that a series of sedimentary-structural models with regularity of successive extensionally faulted troughs occurred in the Permian System of the region due to the expansion of Paleo-Tethys sea and the extension undergone in the interior continental crust.