leucogranite

leucogranite
An intrusion of the continental crust subject to anatexis

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  • leucogranite — * * * ● leucogranite nom masculin Roche plutonique essentiellement à quartz et feldspath …   Encyclopédie Universelle

  • Leucogranite — In geology, leucogranites are amongst the youngest intrusions related to anatexis of continental crust anywhere in the world. Leucogranites are commonly found in deformed metapelitic/metagraywacke sequences that have been thrusted over basements… …   Wikipedia

  • Leucogranite — En géologie, les leucogranites sont parmi les plus jeunes roches intrusives sur terre liées au phénomène d anatexie dans la croûte continentale. On les trouve le plus souvent dans les séquences de grauwacke qui ont été basculées durant les… …   Wikipédia en Français

  • Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian …   Wikipedia

  • Myrmekite — describes a vermicular, or wormy, intergrowth of quartz in plagioclase. The intergrowths are microscopic in scale, typically with maximum dimensions less than 1 millimeter. The plagioclase is sodium rich, usually albite or oligoclase. These… …   Wikipedia

  • Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …   Wikipedia

  • Locronan — 48° 05′ 55″ N 4° 12′ 22″ W / 48.0985, 4.206 …   Wikipédia en Français

  • Granito orbicular — Orbiculita Granito orbicular cerca de Caldera, Chile.. General Tipo Ígnea Tamaño grano …   Wikipedia Español

  • Mount Everest — Everest redirects here. For other uses, see Everest (disambiguation). Mount Everest (Qomolongma / Sagarmatha) Highest Mountain in the World …   Wikipedia

  • Symonston, Australian Capital Territory — Infobox Australian Place | type = suburb name = Symonston state = Australian Capital Territory city = Canberra caption = lga = South Canberra postcode = 2609 est = 1928 propval = pop = 672 (2001 census) ACTgov = Molonglo fedgov = Canberra near nw …   Wikipedia