最大湖泛面

最大湖泛面多为泥岩，但其厚薄不一。

Maximum flooding surface Sediment are usually mudstone , and the thickness is different from each other .

在明确首次和最大湖泛面基本特征的基础上，重点叙述了层序B的低位、湖侵和高位体系域的近岸水下扇、扇三角洲等沉积体系特征和层序构型主控因素。

Characteristics of the lowstand , transgressive and highstand system tracts of the sequence B are described particularly .

水退体系域以最大湖泛面为底界，顶界为Ⅰ型或Ⅱ型层序边界，形成于湖平面最高点H至下降点F期间。

And Regressive Systems Tract ( RST ) which bottom is a maximal flooding surface and top is a sequence boundary of type I or type ⅱ formed during the period from the highest point ( H ) to the descent inflexion point ( F ) of lacustrine level change .

SⅢ层序水进体系域最大湖泛面附近的浅湖相泥岩是最重要的区域盖层。

The shale of shallow lacustrine facies in the TST of S_ ⅲ sequence around the MFS is the most important regional seal rock .

在依据岩性和测井曲线的变化识别首次湖泛面和最大湖泛面，并结合准层序叠置样式分析的基础上，进行了体系域的划分。

The systematical domain was divided based on the recognition of the first flooded surface and maximum flooded surface and in combination with analysis of parasequence superimposed style .

通过对油气成藏条件的综合分析认为，岩性、地层油藏主要沿地层不整合面、最大湖泛面和断面分布；

Based on the analysis of the conditions for oil and gas migration and accumulation , lithologic and stratigraphic oil reservoirs are distributed mainly in the unconformity surface , the maximum lake-flooded surface and the faulted surface .