petrology chapter-6
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Petrology Chapter-6. Gautam Sen. Classification of Basalts. AFM Diagram. Crystal Settling vs. Flotation. Crystal-liquid movement in a thick sill. Palaisades Sill, NJ. Picture credit: Kevin Chau , FIU. Origin of Lunar Highlands anorthosite by crystal flotation in a magma ocean. - PowerPoint PPT PresentationTRANSCRIPT
Petrology Chapter-6Gautam Sen
Classification of Basalts
AFM Diagram
Crystal Settling vs. Flotation
Crystal-liquid movement in a thick sill
Palaisades Sill, NJ
Picture credit: Kevin Chau, FIU
Origin of Lunar Highlands anorthosite by crystal flotation in a magma ocean
In situ Crystallization
Crystallization in a magma chamber simulated with An-Fo-Silica @ 1 GPa
Development of layers by in situ crystallization
Convection
Flowage Differentiaton
Liquid immiscibility
Exsolution of Vapor from Magma
Kilauea lava variation
Interpreting Oxide-Oxide variations
Trace element variation in melt with crystallization
RTF Process
Deccan Traps Stratigraphy & Isotope variation
Assimilation-Fractional Crystallization
AFM Diagram for the Skaergaard Intrusion
Cumulate Types
Layering
Skaergaard Intrusion – Map & Cross-section
Skaergaard “Stratigraphy”
Pressure and crystallization
Simplified map of the Bushveld Intrusion
Bushveld “Stratigrahy”
Olivine Gap
Bushveld Pyroxenes
Herringbone texture in inverted pigeonite
Pyroxene Inversions