File:Current lineations (rill lineations; parting lineations) on aragonite sand beach (San Salvador Island, Bahamas) 1 (15962679676).jpg

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Current lineations on aragonite sand beach. Also called rill lineations and parting lineations, these sedimentary structures are shallow grooves and ridges oriented essentially perpendicular to shoreline and parallel to the back-and-forth swash movement of waves. Current lineations form during a wave’s backwash phase, as are rhomboid ripples (see elsewhere in this photo album).

Orientation: the seaward direction is “up” on this photo & the landward direction is “down”.

Locality: swash zone, beach along the southeastern side of Graham's Harbour, just north of the Bahamas Field Station, northeastern San Salvador Island, eastern Bahamas
Date
Source Current lineations (rill lineations; parting lineations) on aragonite sand beach (San Salvador Island, Bahamas) 1
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@N05/15962679676 (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
current17:21, 13 October 2019Thumbnail for version as of 17:21, 13 October 20193,008 × 2,000 (2.65 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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