英语词汇“ripple marks”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

ripple marks

plural noun

A system of parallel wavy ridges and furrows left on sand, mud, or rock by the action of water or wind.The second clue is that many of the rocks have very conspicuous ripple marks on, which at least at first glance resemble those we might find on a common day seashore....

The absence of symmetrical ripple marks indicates that the site of deposition was protected from wave action.
The pattern of ripple marks and other features locked in southwestern Utah's sandstone indicates that the mineral grains had been blown in from those directions.

单词	ripple marks
释义	ripple marks plural noun A system of parallel wavy ridges and furrows left on sand, mud, or rock by the action of water or wind.The second clue is that many of the rocks have very conspicuous ripple marks on, which at least at first glance resemble those we might find on a common day seashore.... The absence of symmetrical ripple marks indicates that the site of deposition was protected from wave action. The pattern of ripple marks and other features locked in southwestern Utah's sandstone indicates that the mineral grains had been blown in from those directions.
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