Plate Tectonics: The Grand Unifying Theory of Geology

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• The current hypothesis about the fate of subducted plates suggests that they may sink all the way to the lower mantle near the core/mantle boundary • Geophysical techniques and models may help figure this out Subducted Plate Graveyard
Subduction and Island Arcs Island Arc: Chain of volcanic islands that form behind a subduction zone. • Island arcs may eventually get swallowed by the subduction zone. • What happens when a continent collides into another continent? • What happens when the subducting oceanic plate runs out?
Page 1 and 2: Plate Tectonics The Grand Unifying
Page 3 and 4: Elevations and Lithospheric Loading
Page 5 and 6: Why Are Continents Higher? • Cont
Page 7 and 8: Plate boundaries are zones of many
Page 9 and 10: The Major Plates of Earth’s Litho
Page 11 and 12: Type 2 - Convergent Plate Boundary
Page 13 and 14: Divergent Boundaries • Sea-floor
Page 15 and 16: New Oceanic Crust at Mid-Ocean Ridg
Page 17 and 18: Why Are Mid-Ocean Ridges Elevated?
Page 19 and 20: Pillow Pillows In The Field Pillow
Page 21 and 22: Convergent Plate Boundaries: Subduc
Page 23 and 24: Convergent Boundaries • Accretion
Page 25: The Wadati-Benioff Zone • How do
Page 29 and 30: Transform Boundaries • Lithospher
Page 31 and 32: Transform Plate Boundaries - No Net
Page 33 and 34: SAF Aerial View
Page 35 and 36: Hot Spots • Not all volcanoes on
Page 37 and 38: The orientation of the Hawaiian arc
Page 40 and 41: The Birth of a Divergent boundary
Page 42 and 43: • The western U.S. - most of Neva
Page 44 and 45: What Drives Plate Motions? • The
Page 46 and 47: • Thanks to GPS and other geodeti
Page 48 and 49: Relative Plate Velocities Ignore re

Plate Tectonics: The Grand Unifying Theory of Geology

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