西藏羌塘地块位于龙木错－双湖缝合带与班公湖－怒江缝合带之间。其晚古生代的古地理演化是近年来青藏高原研究争论的焦点之一。羌塘地块西部的多玛地区和中部的荣玛地区存在两套不同的早中二叠世沉积层序，它们之间是属于同一地块的不同沉积相还是属于不同来源的增生楔是认识羌塘地块二叠纪古地理演化的重要科学问题。本项目拟对羌塘地块西部和中部两套不同的早中二叠世地层的沉积层序、动物群组合和年代地层展开研究， 判断它们之间的关系以及与相邻地块之间的亲缘性，从而在大范围内恢复早中二叠世时期冈瓦纳北缘不同陆块之间的关系，推测早中二叠世冈瓦纳北缘古地理演化。

The Qiangtang Block is bounded by the Longmu Co-Shuanghu suture zone in the north and the Bangong-Nujiang suture zone in the south in the Qinghai-Tibet Plateau. The palaeogeography of the Qiangtang Block during the Late Palaeozoic has been a focus of debate recently. The Permian strata are widely distributed in the Qiangtang Block. However, the Lower and Middle Permian depositional sequences from the Domar area in the western part of the Qiangtang Block differs substantially from those from the Romgma area in the central part of the Qiangtang Block. Whether they are from the same block or from the accretionary complex with different origin is enormously important for the reconstruction of the palaeogeography. This project is designed to establish the depositional sequences, faunal succession and chronostratigraphy of two different types of depositions, have a correlation to see if they originated from the same block, and reconstruct their relationships with adjacent blocks/areas. Knowing these will have potential to shed light on the palaeogeographic evolution of the peri-Gondwanan blocks during the Early and Middle Permian.