formation of layers

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• Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud …   Wikipedia

• Formation (stratigraphy) — A formation or geological formation is the fundamental unit of lithostratigraphy. A formation consists of a certain number of rock strata that have a comparable lithology, facies or other similar properties. Formations are not defined on the… …   Wikipedia

• Formation and evolution of black holes — From the exotic nature of black holes, it is natural to question if such bizarre objects could actually exist in nature or that they are merely pathological solutions to Einstein s equations. However in 1970, Hawking and Penrose proved the… …   Wikipedia

• Formation — is a geological body of a flat shape, with its width much less than its extent area, having uniform features and limited by more or less parallel surfaces: the upper one (top) and the lower one (bottom). Formation may comprise several layers… …   Glossary of Oil and Gas

• Fruitland formation — The Fruitland Formation is a sedimentary geological formation containing layers of sandstone, shale, and coal. It was laid down in marshy delta conditions, with poor drainage and frequent flooding, under a warm, humid and seasonal climate. It is… …   Wikipedia

• Class formation — In mathematics, a class formation is a structure used to organize the various Galois groups and modules that appear in class field theory. They were invented by Emil Artin and John Tate. Contents 1 Definitions 2 Examples of class formations 3 The …   Wikipedia

• Marcellus Formation — Stratigraphic range: Middle Devonian …   Wikipedia

• Dongen Formation — The Dongen Formation (Dutch: Formatie van Dongen; abbreviation: DO) is a geologic formation in the subsurface of the Netherlands. The formation consists of early Eocene marine clay and sand. It is named after the town of Dongen in North Brabant.… …   Wikipedia

• Mount Kirkpatrick Formation — Cryolophosaurus One of the dinosaurs that was discovered in the Hanson layer of the Mt. Kirkpatrick Formation. Mount Kirkpatrick Formation …   Wikipedia

• Green River Formation — Infobox Rockunit name = Green River Formation caption = type = Geological formation prilithology = varied otherlithology = see text namedfor = Green River (Utah) namedby = region = Rocky Mountains country = United States coordinates = unitof =… …   Wikipedia

• Touchet Formation — The Touchet Formation (also referred to as Touchet beds) consists of large quantities of gravel and fine sediment which overlays several thousand feet of volcanic basalt of the Columbia River Basalt Group. These Touchet beds are often covered by… …   Wikipedia