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Jacobsville Sandstone is a red sandstone formation, marked with light-colored streaks and spots, primarily found in northern Upper Michigan, portions of Ontario, and under much of Lake Superior. Desired for its durability and aesthetics, the sandstone was used as an architectural building stone in both Canada and the United States.
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks.
Initially, this iron accumulated as iron-oxide coatings, which formed slowly after the sand had been deposited. Later, after having been deeply buried, reducing fluids composed of water and hydrocarbons flowed through the thick red sand which once comprised the Navajo Sandstone.
Adams Gate at Bamberg Cathedral made of Burgpreppach Sandstone Quarry in Worzeldorf (Nuremberg). Abtswind Sandstone: on the Friedrichsberg near Abtswind; Burgpreppach Sandstone: Burgpreppach
Red Sand (aka Red Sand Dunes) is an area of red desert sand dunes near Riyadh, Saudi Arabia. The area is a popular destination among Saudis , expatriates , and Filipino workers. [ 1 ] Organized tours and other activities are available.
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The landscape consists of sediments dating to the Quaternary Period and made of marine deposits with aeolianite and characteristic red sand and silt dunes. These red soils are thought to have originated in the Pleistocene. [ 1 ]
Red beds (or redbeds) are sedimentary rocks, typically consisting 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.