User:Tobias1984/Basalt Tetrahedron/
Basalt tetrahedron[edit]
General | |
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Composition | Quartz, Feldspar (Plagioclase and Alkali Feldspar), Mica |
Basalt Tetrahedron Nomenclature | |
Quartz Tholeiite | SiO2 oversaturated basalt |
Tholeiite | SiO2 saturated basalt |
Olivine Tholeiite | SiO2 undersaturated. |
Olivine Basalt | SiO2 undersaturated |
Alkali Basalt | SiO2 undersaturated |
Occurences | |
Tholeiite | Pillow Lavas (Basaltic part of the oceanic lithosphere), Flood Basalts, In context with subduction zones |
--Tobias1984 (talk) 10:29, 22 November 2011 (UTC)