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Plate Tectonics Theory & Evidence.

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Presentation on theme: "Plate Tectonics Theory & Evidence."— Presentation transcript:

1 Plate Tectonics Theory & Evidence

2 Historical Development of Theory
Chapter 3 Historical Development of Theory Alfred L. Wegener ( ) The Origin of Continents and Oceans (1915) Chapter 3

3 Chapter 3 Fossil Distributions Chapter 3

4 Puzzle Fit of Continents
Chapter 3 Puzzle Fit of Continents Chapter 3

5 Mountains Caledonia Mountains of Europe
Appalachian Mountains of eastern North America Karroo system of South Africa Santa Catarina system of Brazil Chapter 3

6 Continental Drift

7 Driving Mechanism? Centrifugal forces Tidal forces
Arthur Holmes ( ) Mantle Convection

8 Oceanic Ridges Robert Dietz (1914-1995) & Harry Hess (1906-1969)
Seafloor Spreading

9 Chapter 3

10 Paleomagnetism

11

12

13 Vine-Matthews-Morley Hypothesis

14 Strike-Slip Faults John Tuzo Wilson ( )

15 Subduction Figure 3-8

16 Publications that Sealed the Deal
Nature 216, (30 December 1967); d The North Pacific: an Example of Tectonics on a Sphere D. P. McKENZIE & R. L. PARKER Institute of Geophysics and Planetary Physics, University of California at San Diego JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 73, NO. 6, PAGES 1959–1982, 1968 Rises, Trenches, Great Faults, and Crustal Blocks W. Jason Morgan Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543

17 Current Evidence of Drift

18 Major Features of Plate Tectonics

19 Earth’s Layers & Plate Tectonics


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