A term used to describe transverse ripples, where the distance between the ends of a ripple (spen) is longer than a chord, the crest is fan-shaped with many catenary-like curves, and is concave downstream [Allen: 1968]. In mathematics, a catenary is called a catenary, a curve made by a rope of uniform thickness and density with both ends fixed. Source: Asakura Publishing Dictionary of Petrology Information |
横列リップルの記載に用いる語で,リップルの端から端の間(spen)が弦(chord)よりも長く,峰(crest)が多くの懸垂線状の曲線によって扇状になり,下流に凹型となっている場合をいう[Allen : 1968].数学ではcatenaryは懸垂線といい,両端を固定した太さと密度が均一な綱が作る曲線. 出典 朝倉書店岩石学辞典について 情報 |
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