摘要
过去地层划分 ,偏重年代地层顺序 ,强调时、空、岩的统一。由于化石的不断发现或年代解释的变化 ,对孤峰组的划分命名就常有变动且争论不休。在“八五”期间 ,江苏开展了多重地层划分对比研究 ,经这一地层清理发现 ,孤峰组不仅限于苏皖及广西来宾地区 ,而且在华南各省几乎均有分布并含多种矿产资源。尤其在华南地块北缘—自宁镇山脉 ,巢湖经黄石、武昌至四川旺苍、广元一带更为发育。它自东向西由老变新 ,即由茅口早期变至茅口晚期。孤峰组是一明显的穿时岩石地层单位 ,其与茅口组灰岩段还呈翘翘板式的沉积。
The classification of stratigraphy are uniform mainhy by chronostratigraphy with time,space and lithology uniformity.Because of discovery of new fossil and change of chrono-consideration,the classification of Gufong formation is an endless debate.By the study on multiple classifcation and correlation of stratigraphy,the Gufong formation not only distribute in Jiangshu,Anhui and Guangxi provices,but also in each province of southeast China containing some mineral resources,especially in north margin of southeast China block from Nanjing-Zhenjiang.Chaohu,Huangshi,Wuchang to Wangchang and Guangyan of Sichuan province.From east to west,it changes from early stage to late stage of Maokou formation.The Gufong formation is a diachronism stratigraphic unit showing sediment with Maokou formation limestone.
出处
《火山地质与矿产》
2000年第1期63-68,共6页
Volcanology & Mineral Resources
关键词
岩石地层单位
弧峰组
江苏
石灰岩
lithostratigraphic unit Gufong formation Jiangsu
