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Petrology Chapter 11. Gautam Sen. Classification. Alkaline Magma Differentiation. Spitskop Complex, S. Africa. Twin Differentiation Trends. East African Rift Zones. Evolution of Rift System. Ethiopian Flood Basalts. Ignimbrite groups in Ethiopian Traps. - PowerPoint PPT Presentation
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Petrology Chapter 11Gautam Sen
Classification
Alkaline Magma Differentiation
Spitskop Complex, S. Africa
Twin Differentiation Trends
East African Rift Zones
Evolution of Rift System
Ethiopian Flood Basalts
Ignimbrite groups in Ethiopian Traps
REE in Rhyolitic Ignimbrites (lines) & Basaltic Ignimbrites (shaded)
Isotopic composition of Ethiopian Traps
Composition of Rift Volcanics in EARS
Potential Temps
REE in Rift Volcanics
Isotope composition of Ethiopian flood basalts and EAR Volcanics
AP = Afar PlumeKP = Kenyan Plume
Kimberlite Pipe
Ages of African Kimberlites
Pyroxene geotherm
Phase Diagram for Kimberlites & Carbonatites
Phlogopite stability
Lithosphere Structure
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