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.
“盆地”构造发育模式为:从晚

到白垩纪末期发育的山间“盆地”开始、发展到
三纪断陷湖盆的发育、再演化为晚
三纪

纪地陷发育阶段。



