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山西大同第四纪玄武岩中含有少量小型的幔源包体，主要为尖晶石二辉橄榄岩。包体的变形显微构造反映了上地幔条件下至少有两次变形事件；包体的平衡温度为９００～１０５０℃，平衡压力为１．１～１．７ＧＰａ，对应的来源深度为４０～６０ｋｍ。由包体的变形显微构造推导的上地幔流变学参数表明，该地区上地幔符合大陆拉张带上地幔的特征。在第四纪时期，该地区上地幔仍然继续其底辟上涌过程。
There are a few small mantle-derived inclusions in Quaternary basalts in Datong, Shanxi Province, mainly spinel lherzolites. The deformed microstructure of the inclusions reflects at least two deformation events in the upper mantle. The equilibrium temperature of the inclusions is 900-1050 ℃, the equilibrium pressure is 1.1-1.7 GPa, and the corresponding source depth is 40-60 km . The upper mantle rheological parameters deduced from the deformation microscopic structure of the enclaves show that the upper mantle in this area is consistent with the features of the mantle on the tensile strata of the mainland. During the Quaternary period, the upper mantle of the area still continued its uplifting process.