Abstract
In this report I tried to elucidate the relation to landslide to geology and geologic structure. According to the geologic features, I divided Niigata Prefecture into 7 areas, investigayed landslides statistically in each formation in each area, and pointed out the features of each formation and the circumstances of occurrences of landslides.
I also tried to make clear the relation between the landslides of each formation and the geologic structure: for every formation, I investigated the relation of landslide to anticlinal and synclinal structures, and that of landslides of faults and intrusive rocks. In adition, I studied the features of Nagare-ban (dip side creep), Uke-ban (up-dip creep), and Soko-suberi strike side creep.
