Red Beds definition of Red Beds in the Free Online Encyclopedia.

Red Beds

a complex of sedimentary rocks consisting primarily of clays, siltstones, and sandstones, with layers of limestones and gypsums, having a red color caused by iron hydroxides and oxides forming a thin film around the sand and clay particles.

The red color, the presence of carbon, and in some cases the presence of gypsum indicate that the red beds were formed under conditions of a dry climate. In places where red beds have been reworked by underground waters, which are contained in sand and gravel horizons, green gleyed horizons may appear in the red beds as a result of the redistribution of iron and other elements. As a result of epigenetic gleying, the red beds sometimes become multicolored. Red beds were deposited primarily on piedmont alluvial plains and in intermontane areas, in the channels, flood-plains, and deltas of rivers and lakes, partially in shallow seas, and at the foot of mountain slopes (proluvium, for example). They have formed over virtually the entire period of geological history, from the Precambrian to the Neocene. (Cambrian, Devonian, Permian, Triassic, Cretaceous, and Paleogene-Neo-cene red beds are most widespread.) Deposits of copper (copper sandstones), uranium, vanadium, fluorite, celestite, gypsum, salts, and oil are associated with red beds.

REFERENCES

Strakhov, N. M. Tipy litogeneza i ikh evoliutsiia v istorii Zemli. Moscow, 1963.
Perel’man, A. I. Geokhimiia epigeneticheskikh protsessov, 3rd ed. Moscow, 1968.
Van Houten, F. B. “Nekotorye nereshennye problemy genezisa krasnotsvetov.” In Problemy paleoklimatologii. Moscow, 1968.

A. I. PEREL’MAN

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No references found	The bright red beds have matching kids'' bedroom furniture and accessories. Sweet Childhood Dreams Are Made with Kids' Bedroom Furniture by Rony Pollock / Home based business community RED BEDS Known primarily as a business destination, MOSCOW (below) offers accommodation options geared principally toward the homme d'affaires. Europe edition: five insider tips by The Advocate (The national gay & lesbian newsmagazine) Postdiagenetic ferruginization of sedimentary rocks (sandstones, oolitic iron-stones, kaolins ans bauxites)--including a comparative study of the reddening of red beds. Diagenetic influences on iron-bearing minerals in Devonian carbonate ... by Shogenova, Alla; Kleesment, Anne / Proceedings of the Estonian Academy of Sciences: Geology	recycled concrete Recycler recycling recycling endosome recycling old computers Recycling technology red red acetate Red Admiral red alert red algae red and green red and white roses, garland of Red Angus cattle red antimony Red Army red arsenic red azimuth tables red badge Red Badge of Courage, The Red Bank Red Banner Red Banners Red Banners Rebellion Red Baron Red Beds red blood cell Red Book Red Book audio red brass Red Brick Intelligent SQL Red Bridge State Wayside Red Brigade Red Brigades red bug red carnation red cedar red charcoal red chrysanthemum red clay Red Clay State Historic Park Red Cloud red clover red cobalt red copper ore Red Coral Red Crescent Red Cross Red Danish Cattle red death, the Red Deer	Red Banner Red Banner Rifle Division Red Banners Red Banners Rebellion Red Bar Radio red bark Red Barn Alumni Association Red Barn Data Center Red Barnet Partners Coordination Body Red Baron Red Baron Flight Training Red Baron World League red bartsia red bartsia red bartsias red bartsias Red bass red bat red bay Red Bay, Alabama Red bead snake Red beadtree Red beans and rice red bearberry red bearberry Red Beard Red bed Red bed Red Beds red beech Red Bellied Turtle Red belly black snake Red belly black snake Red Bend Catholic College red biddies red biddy Red biotechnology Red biotechnology Red biotechnology Red biotechnology red birch Red Bird Missionary Conference red bird's eye Red Birthmark Red Birthmark red bishops red bishops red bishops red bishops Red Black and Green Red Black Chartreuse Tiger Red Blade Hunters red blindness red blindness red blindness red blood cell red blood cell red blood cell red blood cell

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The bright red beds have matching kids'' bedroom furniture and accessories.

Sweet Childhood Dreams Are Made with Kids' Bedroom Furniture by Rony Pollock / Home based business community

RED BEDS Known primarily as a business destination, MOSCOW (below) offers accommodation options geared principally toward the homme d'affaires.

Europe edition: five insider tips by The Advocate (The national gay & lesbian newsmagazine)

Postdiagenetic ferruginization of sedimentary rocks (sandstones, oolitic iron-stones, kaolins ans bauxites)--including a comparative study of the reddening of red beds.

Diagenetic influences on iron-bearing minerals in Devonian carbonate ... by Shogenova, Alla; Kleesment, Anne / Proceedings of the Estonian Academy of Sciences: Geology

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