认为川东北地区经历了从内陆克拉通之后的大型淡水坳陷湖盆阶段向大巴山前陆盆地阶段的转换过程。

NE Sichuan basin went through the transformational history from large fresh water depression basin after inland craton to foreland basin of Daba mountain.

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鄂尔多斯盆地是我国中生代能源资源最丰富、保存最完整的一个大型内陆坳陷沉积盆地，延长组是该盆地重要含油层位之一。

Ordos Basin is a large Mesozoic basin, which has rich energy resources and keeps completely Mesozoic strata in China. Yanchang Formation is one of important oil-bearing Formation.

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