区域地质调查中对沉积混杂岩的识别与工作方法

Recognition and work method of sedimentary mélange

介绍了沉积混杂岩的识别方法 ,提出了造山带沉积混杂岩区区调研究的技术路线 ,建议沉积混杂岩的制图单位采用三级划分体制 :一级为沉积混杂岩带、二级为沉积混杂岩层、三级为沉积混杂岩体。以中甸地区为例示范了这些制图单位在地质图上的表示方法。

This paper introduces the method of recognition of sedimentary mélange and puts forward the technical line in the regional survey of a sedimentary mélange terrain in an orogenic belt. It is suggested that a three order system of mapping units of sedimentary mélange be adopted: the first order is the sedimentary mélange zone, the second order is the sedimentary mélange layer, and the sedimentary order is the sedimentary mélange body. Take the Zhongdian area for example, the method of representation of these mapping units on geological maps is demonstrated.