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一、前言第一届全国地层会议后,盛金章将茅口组、孤峰组、丁家山组,李家组、文笔山组及当冲组的顶界面作为我国南方上二迭统的下界。王竹泉等则将孤峰组划为上二迭统。1962年盛金章等在苏南龙潭组的下部发现大量茅口期(?)类化石,胡世忠据此将该地上二迭统下界上移百余米。此后,在江西、浙江、福建、广东、湖南等地先后于龙潭组下部发现早二迭世晚期的(?)类和菊石类化石的分子。因此,在中国东南部上二迭统下界是否上移的问题引起了争论,许多生物地层工作者依据古生物化石将龙潭组下部地层的时代划为早二迭
I. Introduction After the first National Stratigraphic Conference, Sheng Jinzhang used Maokou, Goufeng, Dingjiashan, Lijia, Wenbi Mountain and Dangchuang as the lower boundary of the Upper Second Perm in South China. Wang Zhuquan et al. Then assigned a group of Koho to Upper Second Diego. In 1962, Sheng Jinzhang et al. Discovered a large amount of Maokou period (?) -type fossils in the lower part of the Longtan Formation in southern Jiangsu Province. According to this, Hu Shizhong moved the lower bound of the second Permian area upwards of 100 meters. Since then, in the lower part of Longtan Formation, Jiangxi Province, Zhejiang Province, Fujian Province, Guangdong Province and Hunan Province successively discovered the molecules of the late Permian (?) And ammonite fossils. Therefore, the issue of whether the upper bound of Upper Peridorian basin moved upwards in southeastern China caused controversy. According to paleontology fossils, many bio-stratigraphic fossils classified the age of the lower strata of the Longtan Formation as Early Permian