Deflation hollow

Japanese: deflation hollow(英語表記)deflationhollow
Deflation hollow

…In desert regions, sandstorms move surface material, scattering and kicking up sand and gravel, eroding the surface and carrying fine material far away. As a result, the ground is uniformly lowered or partially hollowed out, leaving behind elliptical deflation hollows several meters deep and tens of meters in diameter. In cases where the cliffs of a plateau are made of sand, wind erosion can erode the sand layer and blow out the plateau surface, creating hairpin-shaped eroded sand dunes. …

*Some of the terminology that refers to "deflation hollow" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…砂漠地域では砂嵐の折に表層の物質が動かされ,砂礫が跳躍し舞い上げられて地表を削磨し,細粒物質は遠くまで運ばれる。そのため地面は一様に低められたり,部分的にくぼまされたりして,深さ数m,径数十mの楕円形の風食凹地deflation hollow(風食窪ともいう)が残される。台地の海崖が砂層からなる場合など,風食が砂層を削り台地面を吹き削って(ブローアウトblowout),平面がヘアピン形の浸食砂丘(ブローアウト砂丘blowout dune)を生ずる。…

※「deflation hollow」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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