...This is an underwater landslide caused by a slope collapse when the layer of rock has been deposited relatively quickly and the layer has not yet fully solidified, and the slope of the deposited slope has increased for some reason. A layer of rock caused by a large-scale landslide is called an olistostrome. (2) Collapse structure A structure in which the relatively heavy sediments on top are pushed down into the softer sediments below due to deformation caused by the load. ... *Some of the terminology that mentions "olistostrome" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…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。大規模な地層の地すべりによって生じた地層をオリストストロームolistostromeと呼ぶ。(2)崩壊構造collapse structure 上にのるやや重い堆積物が下の軟らかい堆積物中に,荷重による変形により,めりこんでいる構造をいう。… ※「olistostrome」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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