茅东断裂带断层产物与断裂滑动方式

笔者对茅东断裂带构造岩和断层泥进行了显微构造、力学实验研究和差热分析.由显微变形、构造岩类型及方解石脉穿插、位移等微观现象显示茅东断裂带具有多期的挤压剪切运动方式,其中"切砾"现象、石英塑性变形等反映茅东断裂具有快速粘滑兼有旋转的滑动方式,它与溧阳地震的成因机制是统一的.

THE EXPERIMENT ON FAULT GOUGES AND TECTONITES OF THE EASTERN FAULT ZONE OF MAOSHAN

The fault gouges and tectonite the Eastern fault zone of Maoshan have been studied by means of methods of microstructures,machanic experiment and differential thermal analysis in this paper. By the types of tectonites and the phynomena of interpenetration and displacement of calcite,show that the Eastern fault zone of Maoshan are repeatedly active.The fast sticky-sliping with torsion componented are deminant for fault movement patttens and conform to the mechanism of Liyang earthquakes.