茅山断裂带结构和构造混杂岩带及磨砾岩之发现

笔者在地质调查和前人研究资料基础上,将茅山断裂带内部结构划分为北东向的多字型构造、北北东向推覆构造和北北东向压扭断裂构造.并对与推覆构造相伴生的构造混杂岩和北北东向压扭断裂构造的构造岩分带现象进行具体划分和研究.笔者根据上述研究结果,认为茅山断裂带的最新活动以左旋压扭为主,并兼有快速剪切运动特征.

THE STRUCTURE FORMS OF MAOSHAN FAULT ZONE AND THE DISCOVERING OF THE TECTONIC HYBRID ROCKS AND MOLASSE

On the Besis of the data of geological survey and predecessor's study,the authors have divided the iaterstructures of the fault zone into three patterns according to the forming time in geological history,namely Xi-type structures which strike is NE direction,NNE nappe structures and compa-ression faults. This paper have studied the tectonic hybrid rocks related to the nappe and the zoning phenomina of teetonite distributed along the fault zone.The conclusion may be coveres as: The left-lateral strike slip for active pattern of the fault zone is dominant and accompanied with fast shear fracturing.