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peralkaline


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'peralkaline' can also refer to...

peralkaline

peralkaline

Peralkaline Nephelinite–Natrocarbonatite Relationships at Oldoinyo Lengai, Tanzania

Phase Relations of Peralkaline Silicic Magmas and Petrogenetic Implications

On the Controls of Oxygen Fugacity in the Generation and Crystallization of Peralkaline Melts

Fractionation of Peralkaline Silicic Magmas: the Greater Olkaria Volcanic Complex, Kenya Rift Valley

Experimental and Thermodynamic Constraints on the Sulphur Yield of Peralkaline and Metaluminous Silicic Flood Eruptions

Experimental Constraints on the Relationships between Peralkaline Rhyolites of the Kenya Rift Valley

The Alkaline–Peralkaline Tamazeght Complex, High Atlas Mountains, Morocco: Mineral Chemistry and Petrological Constraints for Derivation from a Compositionally Heterogeneous Mantle Source

Magma Mixing and Crustal Recycling Recorded in Ternary Feldspar from Compositionally Zoned Peralkaline Ignimbrite ‘A’, Gran Canaria, Canary Islands

U–Th Disequilibrium and Rb–Sr Age Constraints on the Magmatic Evolution of Peralkaline Rhyolites from Kenya

Quantification of Magmatic and Hydrothermal Processes in a Peralkaline Syenite–Alkali Granite Complex Based on Textures, Phase Equilibria, and Stable and Radiogenic Isotopes

Relationships between Mafic and Peralkaline Silicic Magmatism in Continental Rift Settings: a Petrological, Geochemical and Isotopic Study of the Gedemsa Volcano, Central Ethiopian Rift

Crustal Origin for Peralkaline Rhyolites from Kenya: Evidence from U-Series Disequilibria and Th-Isotopes

Potassium Amphibole Stability in the Upper Mantle: an Experimental Study in a Peralkaline KNCMASH System to 8.5 GPa

Genesis of Silicic Peralkaline Volcanic Rocks in an Ocean Island Setting by Crustal Melting and Open-system Processes: Socorro Island, Mexico

Petrogenesis and 40Ar/39Ar Geochronology of the Brandberg Complex, Namibia: Evidence for a Major Mantle Contribution in Metaluminous and Peralkaline Granites

The Roles of Fractional Crystallization, Magma Mixing, Crystal Mush Remobilization and Volatile–Melt Interactions in the Genesis of a Young Basalt–Peralkaline Rhyolite Suite, the Greater Olkaria Volcanic Complex, Kenya Rift Valley

 

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A chemical classification applied to felsic igneous rocks in which there are more molecules of (Na2O + K2O) than of Al2O3. Rocks with such a chemistry crystallize alkali-rich ferromagnesian minerals such as aegirine, aegirine-augite, barkevikite, and arfvedsonite. See also metaluminous.

Subjects: Earth Sciences and Geography.


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