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Uluru (/ ˌ uː l ə ˈ r uː /; Pitjantjatjara: Uluṟu [ˈʊlʊɻʊ]), also known as Ayers Rock (/ ˈ ɛər z / AIRS) and officially gazetted as Uluru / Ayers Rock, [1] is a large sandstone monolith. It crops out near the centre of Australia in the southern part of the Northern Territory, 335 km (208 mi) south-west of Alice Springs.
Uluru (Ayers Rock) is a large sandstone formation in Northern Territory, Australia.. Sedimentary rocks can be subdivided into four groups based on the processes responsible for their formation: clastic sedimentary rocks, biochemical (biogenic) sedimentary rocks, chemical sedimentary rocks, and a fourth category for "other" sedimentary rocks formed by impacts, volcanism, and other minor processes.
The Shinumo Quartzite also known as the Shinumo Sandstone, is a Mesoproterozoic rock formation, which outcrops in the eastern Grand Canyon, Coconino County, Arizona, (Northern Arizona). It is the 3rd member of the 5-unit Unkar Group. The Shinumo Quartzite consists of a series of massive, cliff-forming sandstones and sedimentary quartzites.
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. [1] Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's ...
Articles relating to Uluru, its history, and its depictions. It is a large sandstone formation in the centre of Australia. Uluru is sacred to the Pitjantjatjara, the Aboriginal people of the area, known as the Aṉangu. The area around the formation is home to an abundance of springs, waterholes, rock caves and ancient paintings.
The grains best matched a group of sedimentary rocks known as Old Red Sandstone found in the Orcadian Basin in northeast Scotland, which differed completely from stones found in Wales.
The Alice Springs Orogeny was a major intraplate tectonic (mountain building) episode in central Australia responsible for the formation of a series of large mountain ranges. [1]
Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks. The term may also be applied to other granular materials . This is different from the crystallite size, which refers to the size of a single crystal inside a particle or grain.