Legs (geology) - customer

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[Terminology for single folds]
In a single fold cross section, the point where the curvature of the fold surface is maximum is called the hinge, and the line connecting the hinges is called the hinge line or fold axis (Figure 2). The parts of the hinge with smaller curvature on either side are called the wings or legs, and the point of zero curvature is called the inflection point. The surface that includes all the hinge lines of the multiple fold surfaces that make up a fold is called the fold axis surface (hinge surface) or simply the axis surface. …

*Some of the terminology explanations that mention "legs (geology)" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

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［単一の褶曲に関する術語］
　単一の褶曲断面において，褶曲面の曲率が最大になる点をヒンジhingeといい，ヒンジを結んでできる線をヒンジ線または褶曲軸という(図2)。ヒンジの両側の曲率の小さい部分を翼または脚といい，曲率0の点を変曲点という。一つの褶曲を構成する複数の褶曲面のヒンジ線をすべて含む面を褶曲軸面(ヒンジ面)ないし単に軸面と呼ぶ。…

※「脚（地学）」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