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Oolite or oölite (from Ancient Greek ᾠόν (ōión) 'egg stone') [1] is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. [2] Strictly, oolites consist of ooids of diameter 0.25–2 millimetres; rocks composed of ooids larger than 2 mm are called pisolites .
The Great Oolite Group is a Middle Jurassic stratigraphic unit that outcrops in southern England. It consists of a complex set of marine deposits primarily mudstone and bioclastic ooidal and fine grained limestone, deposited in nearshore to shelf settings. [ 1 ]
It was previously known as the Great Oolite Limestone, White Limestone and the Snitterby Limestone Formation. It is the lateral equivalent of the White Limestone Formation [1] From the Jurassic ridge it extends eastwards below the later deposits and in the North Sea terminology, it is part of the West Sole Group. (Cameron p.
Let us sing an ode to ooids, the tiny, roly-poly balls of broken shells that formed South Florida’s oolite limestone bedrock. South Florida geology 101: Lessons in the rock about future risks ...
Miami Limestone (formerly Miami Oolite, orange on map) in relation to other formations in South Florida. The Miami Limestone, originally called Miami Oolite, is a geologic formation of limestone in southeastern Florida. Miami Limestone forms the Atlantic Coastal Ridge in southeastern Florida, near the coast in Palm Beach, Broward and Miami Dade ...
Limestone (calcium carbonate CaCO 3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO 3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place ...
White Limestone Formation, Athelstan Oolite Formation, Chalfield Oolite Formation, Corsham Limestone Formation, Frome Clay Thickness Up to 5m thick in Buckinghamshire, 10 to 30m in Oxfordshire and Gloucestershire, 30 to about 50m in north Dorset, 30 to 75m in south Dorset
The Lincolnshire Limestone Formation is a geological formation in England, part of the Inferior Oolite Group of the Middle Jurassic strata of eastern England. [1] It was formed around 170 million years ago, in a shallow, warm sea on the margin of the London Platform and has estuarine beds above and below it.