At the same time , relationship between rock and elctronics for every formation is determined . 2 . there are five depositional faces in the area : open sea , restrained sea , tidal flat , salified lagoon and bank 4 、在单井沉积相研究的基础上，对各组的岩相古地理特征进行了详细研究，研究认为：区内发育开阔海、局限海、潮坪、咸化泻湖和滩五种沉积相类型。
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