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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. - PowerPoint PPT Presentation
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Petrology – Chapter 9Gautam Sen
Flood Basalts & Hot Spot Tracks
“Plume Heads & Tail” Model
Central Atlantic Magmatic Province (CAMP)
Flood Basalts & Mass Extinctions
Columbia River Basalt
FeO* & TiO2 in Flood Basalt provinces
Continued…
Deccan Traps
Deccan Trap lava flows
India running over Reunion-Deccan plume at 68-65 Ma
Ages of Deccan Traps
Giant Plagioclase Basalt flows in the Western Ghats near Mumbai
Deccan Pyroxenes
TAS Diagram for Deccan
REE in Deccan Basalts
Deccan Nd-Sr Isotopes
Fe-rich Source for Deccan
Model for the Generation of Deccan Magmas
Columbia River Basalts
Cross-section of Pacific NW
Age of CRBG
CRBG: Volumes of Individual Formations estimated by Hooper
Spatial distribution of various CRBG formations
Major element composition
REE of CRBG
Isotopes of CRBG
Geist’s Model
Camp & Hanan Model for theOrigin of the CRBG