fold basement

基本解释

The Yitong Graben is a Tertiary petroliferous strike-slip fault basin developed on the Hercynian fold basement.
伊通地堑是一个主体在海西期褶皱基底上发育起来的第三纪含油气走滑断陷盆地。
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The sub-tectonic unit, Chaiwopu sag, which lies in the south margin of the basin, was a small intermountain superimposed sag developed on the fold basement of Upper Carboniferous.
其中的次级构造单元柴窝堡凹陷位于盆地南缘，是一个在下石炭统褶皱基底上发育起来的小型山间叠合凹陷。
Dating the Gaolan Group in the Central Qilian fold basement is important for reconstructing the evolution of the Qilian Orogenic Belt.
厘定中祁连地块褶皱基底的时代，对探讨中祁连地块构造属性以及研究祁连造山带构造演化有重要意义。