The sedimentary facies and the sedimentary cycle control low resistivity oil & gas zone on sedimentation .
在沉积上受沉积相、沉积旋回的控制；
In vertical, from E31 to E32, it changes from braided river delta to a shallow lake facies, thus, formed a cycle which lithologic character is rough at bottom.
在纵向上，从E31 - E32，从下向上由辫状河三角洲相变为浅湖相，构成了一正旋回沉积。
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