Lenticular bedding

{{Short description|Sedimentary bedding pattern displaying alternating layers of mud and sand}}

Image:Lenticular.jpg of Kentucky. Shows the characteristic large quantities of mud covering 'lens-like' sand.]]

File:Lenticular Bedding in Shale.jpg

Lenticular bedding is a sedimentary bedding pattern displaying alternating layers of mud and sand. Formed during periods of slack water, mud suspended in the water is deposited on top of small formations of sand once the water's velocity has reached zero.Terwindt, J. H. J., and Breusers, H. H. C. (1971). [http://web.ebscohost.com/ehost/detail?vid=1&hid=2&sid=3dc1cb07-d515-44e4-b734-7cb90518d0f5@SRCSM1&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=aph&AN=10157863#db=aph&AN=10157863 "Experiments on the origin of flaser, lenticular and sand-clay alternating bedding"]. Sedimentology. 19: 85–98.Reineck, H. (1967). "Layered sediments of tidal flats, beaches, and shelf bottoms of the North Sea". Estuaries. 83: 191–206. Lenticular bedding is classified by its large quantities of mud relative to sand, whereas a flaser bed consists mostly of sand. The sand formations within the bedding display a 'lens-like' shape, giving the pattern its respected name. They are commonly found in high-energy environments such as the intertidal and supratidal zones. Geologists use lenticular bedding to show evidence of tidal rhythm, tidal currents and tidal slack, in a particular environment.{{cite journal| author = Reineck, H.| author2 = Wunderlich, F.| year = 1968| title = Classification and origin of flaser and lenticular bedding|journal = Sedimentology| volume = 11| issue = 1–2| pages= 99–104| doi = 10.1111/j.1365-3091.1968.tb00843.x| bibcode = 1968Sedim..11...99R}}

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