SURFACE MORPHOLOGICAL CHARACTERISTICS OF THE GRAVELS AND THE DEBRIS MINERALS IN GLACIAL ANE NON-GLACIAL DEPOSITS
冰川沉积与非冰川沉积中砾石和碎屑矿物表面的形态特征

This paper introduces the surface forms of gravels and the textures of minerals in tills and non-tills from microscopic and scanning electro microscopic studies. Their characteristics are innate in themselves, but sometimes they are similar to one another.Glacial stria forms groups on a surface, and sometimes they cross each other. Glacial. stria are deep and smooth, while those of mud flow are often shallow small irregular and not in the same direction.