摘要
东北南部的地台型石炭系,按其沉积层型可划分为3个沉积地理区(块),即辽东—吉南沉积地理区(块)、辽南沉积地理区(块)和辽西沉积地理区(块),它们当属于华北型石炭系的次级层型(亚型),是在石炭纪华北总体下沉的条件下各自受不尽相同的古构造、古地理格局控制的结果。它们既有华北型石炭系的共性,又表现了其个性。现有资料表明,辽东、吉南肯定存在下石炭统,辽南、辽西存在下石炭统也可基本肯定,从而为重新认识华北地质史提供了重要素材。
According to the stratotypes of sedimentary, the platform-type Carboniferous in the south of Northeast China can be subdivided into 3 sedimentary geographic zones (blocks), namely,East Liaoning-South Jilin, South Liaoning, West Liaoning sedimentary geographic zones (blocks), which belong to secondary stratotypes (subtypes)of North China-type Carboniferous, and the different sedimentary stratotypes resulted from different paleostructure and paleogeographic pattern during the subsiding of Carboniferous North China platform. So, they had the general character with North China-type Carboniferous as well as respective specific character. The available information indicates that Lower Carboniferous definitely exists in East Liaoning,South Jilin,West Liaoning and South Liaoning. The results provide evidence for studing North China geology history anew.
出处
《国土资源》
1993年第4期289-304,共16页
Land & Resources
基金
地质行业科技基金
关键词
石炭系
华北地台
东北南部
辽东—吉南沉积地理区
辽南沉积地理区
辽西沉积地理区
Carboniferous North China platform The south of Northeast China East Liaoning-South Jilin sedimentary geographic zone South Liaoning sedimentary geographic zone West Liaoning sedimerntary geographic zone
