Internal structure of the Jinnosuke-dani landslide, observable on the Betto valley wall.

概要

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The Central-ridge large-scaled block of Jinnosuke-dani landslide is well exposed at the left bank of the Betto valley. Accessibility of the exposure is limited to the bottom part along the valley floor, because the exposed wall is nearly vertical and more than 100 m high.<BR>The geological structure of the wall is clarified by both direct observations and analysis of the photographs taken from the opposite ridge. The observable internal structure suggests that the Central-ridge large-scaled block has three major slip surfaces.
公益社団法人日本地すべり学会の論文