It is suggested that there are two kinds of potential subtle traps:intrachannel tidalsandridge structural-stratigraphic traps and channel lateral-sealing structural-stratigraphic traps.
指出水道内潮流砂脊构造-岩性圈闭和水道侧向遮挡构造-岩性圈闭两种有利的潮流砂脊隐蔽圈闭。
2
There is a huge tidalsand system which is composed of the old sand body distributing in the coastal plain and the radial sand ridge distributing in south Huanghai Sea.