peraluminous
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Peraluminous — rocks are igneous rocks that have a molecular proportion of aluminium oxide greater than that of sodium oxide, potassium oxide and calcium oxide combined. Compare with peralkaline, metaluminous, and subaluminous … Wikipedia
peraluminous — per·aluminous … English syllables
peraluminous — |pər., |per+ adjective Etymology: per + aluminous : having a molecular proportion of alumina greater than that of soda and potash combined used of an igneous rock … Useful english dictionary
Monzogranite — Monzogranites (MGr) are biotite granite rocks that are considered to be the final fractionation product of magma. Monzogranites are characteristically felsic (SiO2 > 73%, and FeO + MgO + TiO2 < 2.4), weakly peraluminous (Al2O3/ (CaO + Na2O… … Wikipedia
Granito orbicular — Orbiculita Granito orbicular cerca de Caldera, Chile.. General Tipo Ígnea Tamaño grano … Wikipedia Español
Igneous rock — Geologic provinces of the world (USGS) Shield … Wikipedia
Syenite — is a coarse grained intrusive igneous rock of the same general composition as granite but with the quartz either absent or present in relatively small amounts ( … 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
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
Syenogranite — is a fine to coarse grained intrusive igneous rock of the same general composition as granite. They are characteristically felsic. The feldspar component of syenogranite is predominantly alkaline in character (usually orthoclase). For example,… … Wikipedia
