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
模式为：从晚侏罗世到白垩纪末期
山间“地”开始、展到早第三纪断
、
演化为晚第三纪及第四纪地阶段。
观点；若
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