忻定盆地是山西地堑系北部的一个张性断陷盆地，第四纪构造运动活跃。
The Xinding basin in the north of Shanxi rift system is a normal fault-controlled extensional graben and has a strong neotectonic process during the Quaternary.
由于新构造运动的活化，在花岗岩基底上形成了第四纪侵蚀型古河谷，充填了富含有机质的碎屑岩和玄武岩壳。
Due to the neotectonic activation, Quaternary palaeo-valleys that incised the basement were formed on the basement granite and were filled with organic matter-rich clastic sediments and basalt crusts.
由于气候变化和新构造运动，渤海曾发生多次海陆演化，从而形成了第四纪地下卤水。
Because of climatic changes and new tectonic movements, several sea and land evolutions occurred in the Bohai sea area to result in the formation of subsurface brine.
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