论文部分内容阅读
中国是世界上二叠系最发育的国家之一,尤其是华南地区二叠系层序清楚,沉积类型多样,古生物丰富,更是研究二叠系最理想的地区。早在三十年代,黄汲清教授就为我国南方二叠系地层学和古生物学奠定了基础,对此做出了杰出的贡献。五十多年来,经我国广大地质古生物工作者的努力,二叠系研究取得了长足的进展,积累了大量的资料,并可能根据沉积类型、生物群性质、地质构造和岩相古地理等因素,将中国的二叠系划分为准噶尔—兴安、塔里木—华北、昆仑—巴颜喀拉—金沙、秦岭—扬子、江南、东南、西藏—滇西、喜马拉雅—冈底斯念青唐古拉等地层区(见插图)。现仅就近年来二叠系研究中的一些新认识分区论述如后。
China is one of the most developed Permian countries in the world. Especially in the South China, Permian has a clear sequence, diverse depositional types and rich paleontology. It is also the most ideal area for studying Permian. As early as the thirties, Professor Huang Jiqing laid the foundation for the Permian stratigraphy and paleontology in southern China, and made outstanding contributions to this. For more than 50 years, great efforts have been made in the study of Permian by our country’s vast number of geological palaeontologists, and great progress has been made in the study of Permian. A large amount of data have been accumulated and may be based on sedimentary types, biota character, geological structure and lithofacies palaeogeography , The Permians in China are divided into strata such as Junggar-Xing’an, Tarim-North China, Kunlun-Bayan Har-Sands, Qinling-Yangtze, Jiangnan, Southeast, Tibet-West Yunnan, Himalaya-Gangdise Nyainqentanglha District (see illustration). Only a few new understandings in Permian studies in recent years are described in detail.