File:Backbeach asymmetrical wind ripples on aragonite sand (San Salvador Island, Bahamas) 2 (15806958280).jpg

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Backbeach asymmetrical wind ripples on biogenic aragonite sand.

Asymmetrical ripple marks have a long side and a short side, when viewed in cross-section. They form in a one-directional current by wind or water. The current direction was toward the short side of each ripple.

The asymmetrical ripples shown above are wind ripples, formed above the swash zone in a backbeach facies. The wind direction was from left to right, resulting in ripple marks with ridges perpendicular to shoreline and subparallel to wave movement directions.

Orientation: land is toward the top; ocean is toward the bottom.

Locality: southern shoreline of Graham’s Harbour, northern margin of San Salvador Island, eastern Bahamas
Date
Source Backbeach asymmetrical wind ripples on aragonite sand (San Salvador Island, Bahamas) 2
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15806958280 (archive). It was reviewed on 13 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

13 October 2019

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Date/TimeThumbnailDimensionsUserComment
current17:22, 13 October 2019Thumbnail for version as of 17:22, 13 October 20193,008 × 2,000 (2.63 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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