...the debris deposited at the base of a glacier is generally called a ground moraine, and creates a wavy topography with small undulating reliefs parallel to (or sometimes perpendicular to) the direction of glacier flow. The advancing glacier pushes the deposits on its front and sides like a bulldozer, creating a moraine ridge that borders the edge of the glacial tongue. The moraine formed in this way is called a terminal moraine or a lateral moraine. *Some of the terminology that mentions "moraine ridge" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一般に氷河の底面で堆積した岩屑物をグランド・モレーンground moraine(底モレーン,底堆石)といい,氷河の流動方向に平行(まれには直交)した波状の小さな起伏の地形をつくる。 また前進する氷河はブルドーザーのように,前面や側面の堆積物を押して氷舌端を縁取るようにモレーンの堤防状の高まり,すなわちモレーン丘moraine ridge(堆石堤)をつくる。このようにして形成されたものを末端モレーン(終堆石),側方モレーンlateral moraine(側堆石)という。… ※「moraine ridge」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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