This paper follows paper (I) with the same title and discusses the mechanical properties identified by the in-situ rock tests, then gives a conclusion based on both papers.
The conclusion is as follows:
(1) Strength and ductility of the landslide-mother-rocks do not necessarily increase or decrease in the sequence of geologic formation, and such transition of mechanical properties corresponds to the regional difference in the types of landslide movement.
(2) Mechanical properties of landslide-mother-rocks have a strong influence on the type of movement. On the other hand, since their qualitative properties are succeeded to the secondary or tertiary landslide debris, the type of secondary or tertiary landslide movement is also regionally different.