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Giant current ripples : ウィキペディア英語版 | Giant current ripples
Giant current ripples are active channel topographic forms up to 20 m high, which develop within near-talweg areas of the main outflow valleys created by glacial lake outburst floods. Giant current ripple marks are morphologic and genetic macroanalogues of small current ripples formed in sandy stream sediments. The giant current ripple marks are important depositional forms in diluvial plain and mountain scablands.〔(Alexei N. Rudoy, 2005. Giant current ripples (History of the Research, their diagnostics and palaeogeographical significance). - Tomsk. - 224 pp. In Russian, Eng. summary: pp. 134-211 pp. ) * ''Рудой А. Н.'' Гигантская рябь течения (история исследований, диагностика и палеогеографическое значение) // Материалы гляциологических исследований, 2006. — Вып. 101. — С. 24-48.〕 ==History of the research== The history of the scabland studies has two distinct stages: the "old" one that began with the first works by J Harlen Bretz and Joseph Pardee in North America and lasted until the end of the 20th century that was crowned with the discovery of giant current ripple marks in Eurasia, and a "new" one. The latter is associated with heated debates concerning the genesis of the relief under study and which involved a lot of Russian geologists, geomorphologists and geographers. The discussion about the origin of the giant ripples dealt at least to a certain extent with every aspect of the diluvial theory, from the genesis of the lakes themselves, their existence duration, possibilities of their cataclysmic failures, etc. to the origin of the diluvial forms - the aspects that have been accepted by many scientists worldwide, including an increasing number of Russian scientists.
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