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Petrology – Chapter 9

Petrology – Chapter 9. Gautam Sen. Flood Basalts & Hot Spot Tracks. “Plume Heads & Tail” Model. Central Atlantic Magmatic Province (CAMP). Flood Basalts & Mass Extinctions. Columbia River Basalt. FeO* & TiO 2 in Flood Basalt provinces. Continued…. Deccan Traps. Deccan Trap lava flows.

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Petrology – Chapter 9

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  1. Petrology – Chapter 9 Gautam Sen

  2. Flood Basalts & Hot Spot Tracks

  3. “Plume Heads & Tail” Model

  4. Central Atlantic Magmatic Province (CAMP)

  5. Flood Basalts & Mass Extinctions

  6. Columbia River Basalt

  7. FeO* & TiO2 in Flood Basalt provinces

  8. Continued…

  9. Deccan Traps

  10. Deccan Trap lava flows

  11. India running over Reunion-Deccan plume at 68-65 Ma

  12. Ages of Deccan Traps

  13. Giant Plagioclase Basalt flows in the Western Ghats near Mumbai

  14. Deccan Pyroxenes

  15. TAS Diagram for Deccan

  16. REE in Deccan Basalts

  17. Deccan Nd-Sr Isotopes

  18. Fe-rich Source for Deccan

  19. Model for the Generation of Deccan Magmas

  20. Columbia River Basalts

  21. Cross-section of Pacific NW

  22. Age of CRBG

  23. CRBG: Volumes of Individual Formations estimated by Hooper

  24. Spatial distribution of various CRBG formations

  25. Major element composition

  26. REE of CRBG

  27. Isotopes of CRBG

  28. Geist’s Model

  29. Camp & Hanan Model for the Origin of the CRBG

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