湖盆

Planar strips,vertical stages,continuous backpedal and strong succession are the characteristics of the glutinite body distribution in a rift extensional basin.

断陷伸展湖陡坡带上砂砾岩体具有"平面带、垂向、续后退、继承性强"布特征。

The basin tectonic model: it is intermont basin during late Jurassic to early Cretaceous, developed into faulted-lacustrine basin in Eogene, and evolved into depression in Neogene and Quaternary.

“地”构造育模式为：从晚侏罗到白垩纪末育山间“地”开始、展到早第三纪断陷湖育、再演化为晚第三纪及第四纪地陷育阶段。