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词汇 Current ripple
分类 英语词汇 英语翻译词典
释义

Current ripple

英语百科

Ripple marks

Ancient wave ripple marks in sandstone, Moenkopi Formation, Capitol Reef National Park, Utah
Wave/symmetrical ripple, Nomgon, Mongolia
Cross-section through asymmetric climbing ripples, seen in the Zanskar Gorge, Ladakh, NW Indian Himalaya. Ripples climb when sediment fluxes in the flow are very high.
Ripple marks in Cretaceous Dakota Formation, east side of Dinosaur Ridge. Scale bar on notebook is 10 cm.

In geology, ripple marks are sedimentary structures (i.e. bedforms of the lower flow regime) and indicate agitation by water (current or waves) or wind.

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