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Petrology Chapter-6

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.

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Petrology Chapter-6

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  1. Petrology Chapter-6 Gautam Sen

  2. Classification of Basalts

  3. AFM Diagram

  4. Crystal Settling vs. Flotation

  5. Crystal-liquid movement in a thick sill

  6. Palaisades Sill, NJ Picture credit: Kevin Chau, FIU

  7. Origin of Lunar Highlands anorthosite by crystal flotation in a magma ocean

  8. In situ Crystallization

  9. Crystallization in a magma chamber simulated with An-Fo-Silica @ 1 GPa

  10. Development of layers by in situ crystallization

  11. Convection

  12. Flowage Differentiaton

  13. Liquid immiscibility

  14. Exsolution of Vapor from Magma

  15. Kilauea lava variation

  16. Interpreting Oxide-Oxide variations

  17. Trace element variation in melt with crystallization

  18. RTF Process

  19. Deccan Traps Stratigraphy & Isotope variation

  20. Assimilation-Fractional Crystallization

  21. AFM Diagram for the Skaergaard Intrusion

  22. Cumulate Types

  23. Layering

  24. Skaergaard Intrusion – Map & Cross-section

  25. Skaergaard “Stratigraphy”

  26. Pressure and crystallization

  27. Simplified map of the Bushveld Intrusion

  28. Bushveld “Stratigrahy”

  29. Olivine Gap

  30. Bushveld Pyroxenes

  31. Herringbone texture in inverted pigeonite

  32. Pyroxene Inversions

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