Plate Tectonics: The Grand Unifying Theory of Geology

More documents

Recommendations

Info

Buoyancy • First described by Archimedes more than 2.2 ka. • Floating solids displace water equal to their mass. • An iceberg “sinks” until the mass <strong>of</strong> water it displaces is equal to the total mass <strong>of</strong> the iceberg. • This concept applies to lithospheric plates. – Continental – Floats higher. – Oceanic – Sinks lower.
Why Are Continents Higher? • Continental Crust - granite – density ~2.6 g/cm 3 • Oceanic Crust – basalt – density ~3.0 g/cm 3 :: Review Hypsograph Exercise ::
Page 1 and 2: Plate Tectonics The Grand Unifying
Page 3: Elevations and Lithospheric Loading
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 and 26: The Wadati-Benioff Zone • How do
Page 27 and 28: Subduction and Island Arcs Island A
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

Create successful ePaper yourself

Delete template?

Save as template?