…Landslides occur frequently in neo-orogenic belts, where the land is generally uneven and where poorly consolidated muddy sedimentary rocks and metamorphic rocks are widely distributed. In Japan, landslides are concentrated in specific geological structures, and based on this, they are classified as Tertiary layer landslides, shear zone landslides, and hot spring landslides. Tertiary layer landslides occur in clusters in hilly areas mainly composed of Tertiary muddy sedimentary rocks. … *Some of the terminology that refers to "hot spring landslide" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 地すべりは,巨視的にみた場合,土地の起伏が大きく,固結度の低い泥質の堆積岩類や変成岩類の広く分布する新期造山帯に多い。日本では特定の地質構造のところに集中しており,それにもとづいて,第三紀層地すべり,破砕帯地すべり,温泉地すべりが区別されている。第三紀層地すべりは,おもに第三紀の泥質堆積岩類からなる丘陵地に群発する。… ※「温泉地すべり」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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