摘要
根据义敦岛弧造山带区域地层特征 ,将该区划分为六个构造地层带。根据区域地层的沉积演化序列和受构造改造作用程序 ,将该区区域地层划分为史密斯地层、有限史密斯地层和非史密斯地层三种类型。据此提出了在川西造山带地区进行 1∶5万、1∶2 5万区调填图的工作方法。
According to the regional stratigraphic characteristics Yidun island arc orogenic belt can be divided into six tectonic stratigraphic zones:Garz Litang zone,forearc basin zone,island arc zone,back arc basin zone,Zongza massif zone and Jinshajiang zone According to the stratigrapbical sequence and tectonic deformation,regional stratigraphy can be classified into three types:smithian stratigraphy,Limited Smithian stritigraphy and non Smithian stratigraphy The arthors put forward the method for geological mapping in the west Sichuan orogenic belt
出处
《四川地质学报》
2000年第1期23-28,共6页
Acta Geologica Sichuan
关键词
岛弧造山带
区域地层特征
区调填图方面
island arc orogenic belt,types and characteristics of regional stratigraphy,method for regional mapping,west Sichuan
