...One of the important subjects in the study of the morphology of strata, the following have been observed. (1) Landslide Slumping A stratum of a certain thickness sandwiched between parallel strata shows intralayer folding, the bedding is torn off, and finally becomes so mixed that it no longer retains its original shape. This occurs when the strata are deposited relatively quickly and the slope of the deposited slope increases for some reason when the strata have not yet fully consolidated, causing a slope collapse and resulting in an underwater landslide. ... *Some terms that mention "slumping" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…地層の形態研究の重要な課題の一つで,次のようなものが観察されている。(1)地すべりslumping 平行な地層にはさまれたある厚さの地層が,層内褶曲を示したり,層理がちぎれたりして,最終的には原形をとどめないほど混じりあってしまうもの。これは,地層が比較的急速に堆積し,地層の固結がまだ十分進んでいない状態で,堆積した斜面の傾斜が何らかの原因により増加したような場合に,斜面崩壊が原因で水中地すべりが生じたものである。… ※「slumping」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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