Shanxi Formation is a set of paralic continental deposit,of which,fluvial,swamp and lacustrine facies alternatively presented regularly.

山西组为一套近海型陆沉积,其中河流、沼泽及泊有规律交替出现。

But the reservoirs of coastwise bar, lacustrine bay sandstone and shore sand occur in each tract.

而沿岸坝、滩砂、湾砂等油气藏分布于各个体系域。

We propose that As anomalism in groundwater possibly resulted from the combined effects of organic matter-enriched lacustrine sediments, geological setting and topographical characteristics.

通过研究，可以看出以还原环境为主富含有机沼沉积环境、特定、形条件为下水砷异常原因。

Relative higher concentration of gammacerane in Songliao fresh-brackish lacustrine environment is connected with water column stratification caused by event of linking between lacustrine and sea.

松辽盆淡水-微咸水环境较高含量伽马蜡烷表明其形成与海沟通引起水体分层事件有关。