证实郎山组与下伏地层之间存在一大型海侵超覆界面；
There exists a large-scale transgressive onlap boundary between the Langshan Formation and its underlying strata.
结果表明，研究区须家河组的天然气主要来源于下伏地层。
The results indicate that the natural gas of the Xujiahe Formation mainly derived form the lower strata.
松辽盆地火山岩埋藏较深，下伏地层成像精度极低，对构造解释造成了一定的影响。
The deeply buried volcanics in Songliao basin leads to very low imaging accuracy for underlying formation, which has some negative effect on the structure interpretation.
本文介绍了两淮地区太原组的岩性特征、化石组合及与上覆或下伏地层间的接触关系。
Presentation is given of the lithological characteristics, fossil assemblages and overlying-underlying contact modes of the Taiyuan Formation in Huainan-Huaibei area.
其二，存在于上奥陶统铁热克阿瓦提组与下伏地层之间，主要为平行不整合，局部为角度不整合。
The other one is between the Upper Ordovician Terekawat Formation and the underlying formations, which presents commonly as a parallel unconformity or an angular unconformity in some regions.
成矿物质主要来自于下伏地层或基底岩石，但在海西期花岗岩岩浆活动中，也有部分成矿物质的加入。
Volcanic magma activity does not participate in the process of ore-forming. The most mineralizing materials of deposit are derived from the old basement strata during the main ore-forming period.
成矿物质主要来自于下伏地层或基底岩石，但在海西期花岗岩岩浆活动中，也有部分成矿物质的加入。
Volcanic magma activity does not participate in the process of ore-forming. The most mineralizing materials of deposit are derived from the old basement strata during the main ore-forming period.
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