The Ordos basin and its adjacent areas were in an extensional tectonic setting in the Mesoproterozoic when the ultra-thick marine Jixian system was deposited in the study area.
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摘要鄂尔多斯盆地及邻区中元古代整体处于地壳伸展的构造背景,沉积了巨厚的中元古界蓟县系海相地层。
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