Petrology Chapter 1Gautam Sen

Formation of Solar System

Earth’s Internal Layering

Origin of Earth’s Layers

Origin of Layering

Origin of Layering

Plates

Types of Plate Boundaries

Types of Plate Boundaries

Pangaea

Pacific Hot Spot Tracks

Origin of Hot Spot Island Chain

Flood Basalts & Hot Spot Tracks

Mantle Plumes

Wilson Hypothesis

Wilson Hypothesis

East African Rift System

Subduction & Mountain Building

McKenzie Model of Flood Basalts & Separation of Continents

Slow (Red) and Fast (Cold) areas in the Mantle

Model for Supercontinent Separation

Anderson’s Hypothesis