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Petrology Chapter 3

Petrology Chapter 3. Gautam Sen. Stability of Diamond & Graphite. Free energy – composition of Olivine. Al 2 SiO 5 Equilibrium. Silica polymorphs. Mole vs. Wt%. Equilibrium crystallization of Olivine. Fractional Crystallization of Olivine. Plagioclase Zoning. Melt mixing.

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Petrology Chapter 3

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  1. Petrology Chapter 3 Gautam Sen

  2. Stability of Diamond & Graphite

  3. Free energy – composition of Olivine

  4. Al2SiO5 Equilibrium

  5. Silica polymorphs

  6. Mole vs. Wt%

  7. Equilibrium crystallization of Olivine

  8. Fractional Crystallization of Olivine

  9. Plagioclase Zoning

  10. Melt mixing

  11. Diopside-Anorthite “System”

  12. Enthalpy-Composition

  13. Equilibrium crystallization in Di-An

  14. Fractional Melting in Di-An

  15. Nepheline-Silica system

  16. Liquidus – solidus near-convergence of peridotite

  17. Forsterite-Silica System

  18. Crystal%, phases, and cooling

  19. Superheat due to Melt Mixing

  20. Fractional Melting in Fo-SiO2

  21. Albite-Orthoclase system at low pressure (shallow continental crust)

  22. Albite–Orthoclase System at higher pressure (moderate – deep crust)

  23. Fo-H2O

  24. Multisaturation & Isoplethal Diagram

  25. Effect of H2O on Di-An

  26. Pressure effect

  27. Effect of H2O on Fo-Silica System

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