在变形过程中，断层活动的差异应力值，根据方解石双晶发育程度推导，得出在500巴以上。
During the deformation, differential stress inferred by use of calcite twin lamellae is more than 500 bar, and mechanics of stepped thrust faults is.
方解石变形双晶、压溶缝合线等显微构造分析结果，一致表明区内引起变形的主应力近于水平。
Analysis of the twinning of calcite, and the stylolites shows that the principal stresses are nearly horizontal.
为此，地基勘察中引入了一种显微构造分析方法，即方解石脉双晶纹分析方法。
In order to do this, a method of microstructure in some bedrock investigation, was applied in this research, that is calcite twin lamellae method.
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