pelitic sediments

См. также в других словарях:

• Zeolite facies — describes the mineral assemblage resulting from the pressure and temperature conditions of low grade metamorphism. The zeolite facies is generally considered to be transitional between diagenetic processes which turn sediments into sedimentary… …   Wikipedia

• Muva — The Muva is a term coined by E.H. Ackermann (1950)[1] for a folded supracrustal shallow water succession of quartzites and pelites in the Irumide Belt of Zambia. The Muva was first described by A. Gray (1930) [2] The sequence is interpreted as a… …   Wikipedia

• Blueschist — (pronEng|ˈbluːʃɪst) is a rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures, approximately corresponding to a depth of 15 to 30 kilometers and 200 to 500 degrees Celsius. The… …   Wikipedia

• Nome mining district — Cape Nome mining district   unincorporated mining district   …   Wikipedia

• metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …   Universalium

• Geology of the Iberian Peninsula — The geology of the Iberian Peninsula consists of the study of the rock formations on the Iberian Peninsula, which includes Spain, Portugal, Andorra, and Gibraltar. The peninsula contains rocks from every age from Ediacaran to Recent, and almost… …   Wikipedia

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium

• Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …   Wikipedia

• Volcanogenic massive sulfide ore deposit — Volcanogentic massive sulfide ore deposit at Kidd Mine, Timmins, Ontario, Canada, formed 2.4 billion years ago on an ancient seafloor. Volcanogenic massive sulfide ore deposits (VMS ) are a type of metal sulfide ore deposit, mainly Cu Zn Pb which …   Wikipedia

• Hatcher Pass — Infobox Mountain Pass Name = Hatcher Pass Photo = Hatcher Pass.jpg Caption = Elevation = 3886 ft./1148 m. Location = Matanuska Susitna Borough, Alaska, USA Range = Talkeetna Mountains Coordinates = Topographic Transversed by = Hatcher Pass (3886… …   Wikipedia

• Slave craton — which is one of the oldest dated rock units on Earth at 4.03 Ga. The crust of the Slave craton is thought to have amalgamated during a 2.69 Ga collision between a proto Slave western basement complex, known as the Central Slave Basement Complex,… …   Wikipedia