文章摘要信息 关键词 ： 鄂尔多斯盆地；岩相古地理；祁连海；奥陶纪；斜坡相 [gap=1682]ords : Ordos Basin; lithofacies palaeogeography; Qilian Sea; Ordovician period; slope facies
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研究区沉积相带为台地相、岩隆相、前缘斜坡相三个相带。
There has three sedimentary facies zone in this research regional such as plateau facies, foreslope facies, rock uplift facies.
由北向南展示出礁坪相到礁核相再到礁前斜坡相的侧向演变。
It has evolved late-rally, showing reef flat, core and front from north to south.
野云沟组主要为斜坡相和盆地相沉积，少量为碳酸盐台地相沉积。
Yeyungou Formation mainly developed carbonate slope facies, deep water basin facies and a little carbonate open platform facies.
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