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classifydiag:basalts_mullen [2016/03/24 09:50] admin |
classifydiag:basalts_mullen [2018/11/12 15:07] (текущий) |
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| - | ====== MnO-TiO2-P2O5: Petrotectonic Environments, Mullen ====== | + | ====== MnO-TiO2-P2O5: Petrotectonic Environments, Mullen, 1983 ====== |
| A ternary diagram using MnO, TiO2, P2O5 can discriminate between five petrotectonic environments of basaltic rocks (45–54% SiO2). Fields for mid-ocean ridge, island arc tholeiite, island arc calc-alkaline, ocean island tholeiite, and ocean island alkalic rocks were distinguished on the basis of 507 analyses from well-defined environments. | A ternary diagram using MnO, TiO2, P2O5 can discriminate between five petrotectonic environments of basaltic rocks (45–54% SiO2). Fields for mid-ocean ridge, island arc tholeiite, island arc calc-alkaline, ocean island tholeiite, and ocean island alkalic rocks were distinguished on the basis of 507 analyses from well-defined environments. | ||