soil creep

Japanese: soil creep(英語表記)soilcreep
soil creep

… [Takeshi Uemura]
[Soil creep]
Rock debris and soil on a slope slowly move downhill under the influence of gravity. This process is called soil creep, or simply creep, which can be translated as creeping. It is thought to be caused by changes in the volume of the surface layer of sediments due to changes in temperature and moisture content, repeated freezing and thawing, etc. In general, the steeper the slope and the more fine-grained material is contained, the faster the movement.

*Some terminology explanations that mention "soil creep" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…【植村 武】
[ソイルクリープ]
 斜面上の岩屑(がんせつ)や土壌は重力の影響を受けて斜面下方へゆっくりと移動する。この過程をソイルクリープsoil creep,あるいは単にクリープと呼び,匍行(ほこう)の訳語がある。温度や含水量の変化,凍結融解の反復などによる堆積物表層部の体積変化によって生ずると考えられており,一般に傾斜が急なほど,細粒物質を多く含むものほど,動きが速い。…

※「soil creep」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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