舜耕山断层的显微构造特征及其意义

The Microstructural Features of Shungengshan Fault and Its Significance

舜耕山断层是低温快速变形的产物,它经历了两期或两期以上的构造作用。它是简单剪切作用下的浅层次的脆性变形,局部为微弱的韧性变形。其形成时的差异应力约为89MPa。通过对舜耕山断层构造岩的显微构造和超显微构造特征、组构分析的研究,和对舜耕山断层形成时的变形条件的论述,从而为阐述淮南煤田南缘逆冲推覆构造的形成机制提供了依据。

By studying the microstructurel, suppormicrostructural features and fabric analysis of Faulted rocks in Shungcngshan fault rone, the deforming conditions of the faultwere discussscd.The fault was a result of the fast deformation under the lower tcmpraturc. So it with local ductile deformations, is a shallow brittle deformation under the sibple shearing. The deforming tetonic stress was about 89 MPa the evidence was offered the research on the deforming mechanism of the nappe structure in the southern edge of Huainan coal field.