The Lower Cambrian contour sediment is grown up in a deep water slope zone It is divided into two types of silty and shaly contourite and sandy contourite Three kinds of contourite profile structures such as perfect (I) and imperfect (Ⅱ,Ⅲ) are described,genetic interpretation is made on them, certain features of the contourites are discusse
湘西北地区下寒武统的等深积岩发育于深水缓坡带。
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