User:Tobias1984/Basalt Tetrahedron/
Basalt tetrahedron[edit]
 Basalt Tetrahedron | |
| General | |
|---|---|
| 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)