ripple mark


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Related to ripple mark: Cross bedding
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Words related to ripple mark

one of a series of small ridges produced in sand by water currents or by wind

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References in periodicals archive ?
Ripple marks are typically generated by currents moving in one direction or by the to-and-fro motion of waves in shallow water to depths of a few tens of feet at the most.
Ripple marks and mud cracks are preserved in the Precambrian Bass, Hakatai, Dox, and Nankoweap Formations.
Canyon walls may also contain other structures, such as fossilized ripple marks.
The sedimentary structures noticed include laminations, cross bedding, ripple marks, burrows, liesgang rings (?
Fossil ripple marks are important features indicative of a specific depositional environment of an ancient basin.
In Estonia fossil ripple marks have been identified in Cambrian and Devonian siliciclastics as well as in Ordovician and Silurian carbonate rocks.
1), west of the Keila-Riisipere railway, has provided an opportunity for detailed study of ripple marks in the Upper Ordovician section.
Ripple marks are oriented roughly in the north--south direction (NE 10[degrees], SW 190[degrees]).
Key features of these specimens include flaked surfaces running in two or more directions and ripple marks, cracks and protrusions clearly resulting from the impact required to detach flakes from stone.
Mark and Ali (1961) and Ali (1962) studied the Tanawal Formation near Tarbela as well in the presently studied area and described preponderance of well- bedded quartzites with excellent cross bedding and ripple marks.
The sequence is characterized by common cross bedding and ripple marks.
The sequence is characterized by common low angle cross bedding and current ripple marks.
Photos from underwater cameras showed that these storms erased animal tracks and created ripple marks in the sediments.
Bioturbation, ripple marks and mudcracks are observed in Mianwali Formation, while cross bedding is dominant in the overlying Tredian Formation.