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”构造育模式为:从晚侏罗世到白垩纪末期
育
山间“盆地”
、
展到早
三纪断陷湖盆
育、再演化为晚
三纪
纪地陷
育阶段。