Red beds (or redbeds) are sedimentary rocks, which typically consist of sandstone, siltstone, and shale that are predominantly red in color due to the presence of ferric oxides. Frequently, these red-colored sedimentary strata locally contain thin beds of conglomerate, marl, limestone, or some combination of these sedimentary rocks. The ferric oxides, which are responsible for the red color of red beds, typically occur as a coating on the grains of sediments comprising red beds. Classic examples of red beds are the Permian and Triassic strata of the western United States and the Devonian Old Red Sandstone facies of Europe.
Read more about Red Beds: Primary Red Beds, Diagenetic Red Beds, Secondary Red Beds, See Also
Famous quotes containing the words red and/or beds:
“Take a red book called TELEPHONE,
size eight by four. There it sits.
My red book, name, address and number.
These are all people that I somehow own.
Yet some of these names are counterfeit.”
—Anne Sexton (1928–1974)
“For the baby suckles and there is a people made of milk for her to use. There are milk trees to hiss her on. There are milk beds in which to lie and dream of a warm room. There are milk fingers to fold and unfold. There are milk bottoms that are wet and caressed and put into their cotton.”
—Anne Sexton (1928–1974)