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1
Continental Drift: An Idea Before Its Time
2
Pangaea 200 Million Years Ago
3
Similar Fossils on Different Continents
4
Continental Drift: Supporting Evidence
5
The Great Debate
6
The Theory of Plate Tectonics
7
Earth's Lithospheric Plates
8
Three Types of Plate Boundaries
9
Divergent Plate Boundary
10
Mid-ocean ridge system
11
Iceland: Mid-ocean ridge
12
Divergent Plate Boundaries
13
Continental Rifting
14
Convergent Plate Boundaries & Subduction
15
Oceanic-Continental Convergence
16
Continent-Continent Convergence
17
Plate Boundaries • Transform fault boundaries - Plates slide past one another
18
Changing Plate Boundaries
19
Deep-Sea Drilling
20
Hot Spots and Hot Spot Tracks
21
Testing the Plate Tectonics Model
22
Polar wandering paths for Eurasia and North America
23
Magnetic Reversals and Seafloor Spreading
24
Ocean Floor as a Magnetic Recorder
25
Heat Flow on the Sea Floor
26
How Is Plate Motion Measured?
27
What Drives Plate Motions?
28
Forces Driving Plate Motions
29
Forces Acting on Plates
30
Whole-Mantle Convection
31
Layer Cake Model
Description:
Explore the fascinating world of plate tectonics in this 59-minute lecture. Delve into the Earth's interior structure and examine ancient Earth maps to understand the planet's geological evolution. Learn about continental drift, the formation of Pangaea, and the supporting evidence that led to the development of plate tectonic theory. Discover the different types of plate boundaries, including divergent, convergent, and transform fault boundaries, and their geological implications. Investigate the processes of seafloor spreading, magnetic reversals, and hot spot formation. Analyze methods for measuring plate motion and explore the driving forces behind tectonic movements. Gain insights into whole-mantle convection and the layer cake model of Earth's structure. This comprehensive overview of plate tectonics provides a solid foundation for understanding the dynamic nature of our planet's geology.

Plate Tectonics

Sven Holbik
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