Some Consideration on the Geomorphic Processes deduced from the Land-Slide Studies of the Shikoku Island

Abstract

Several samples of the land-slide areas in the Shikoku Island show the significance of the groundwater as a morphogenesis. The role of groundwater. however, is thought to be universal on the geomorphic processes of other kind of landforms.
The author proposes a tentative principle to be applied to studies in such a field of study:
(1) Action of groundwater on the material which consitutute the present land-form rules the present morphogenesis.
(2) The action of groundwater at the present time is controlled by the nature of the terrain inherrited from the previous time of landform development.
The author stresses that the groundwater is a morphogenesis us less than the surface water, though the latter is sometimes assumed to be the chief agency for the fluviatile process.