岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

岡山市北部吉備高原地域における地形区分―斜面防災のための試み―

Omizo, Yuna
Hirata, Minoru
Abstract
The Kibi Plateau is characterized by horizontal skylines and they are considered to be an uplifted peneplain. Landform of the plateaus in central part of Okayama Prefecture is divided into "Kibi plateau landform" and "Recent dissecting landform". The Kibi plateau landform is composed of low relief surface and relict mountain. The altitude of the low relief surface varies from 300 to 450m in Kayo area, and 200 to 350m in Kanayama area. The Recent dissecting landform is characterized by escarpment and cuts the Kibi plateau landform. Knick-point is formed at the boundary between two landforms and steep slope is distributed just below the knick-point. The steep slope of the recent dissecting landform is unstable and a potential of landslide is high.
Keywords
Kibi Plateau
landslide
knick-point
Okayama Prefecture
ISSN
1340-7414
NCID
AN10506284
NAID