Slide 1 Chapter 2 Plate Tectonics and the Ocean Floor Essentials of Oceanography 7 th Edition Slide 2 Continental drift Alfred Wegener, a German meteorologist and geophysicist,…

Slide 1 Earth Science Review Slide 2 Explain how similar fossils have been found on both South America and Africa. Slide 3 Both South America and Africa were once part of…

Slide 1 What type of boundary is a? What is a process that happens at a? What is a feature that happens at a? Convergent (oc-oc) Volcanism, subduction, earthquakes Vocanos,…

Slide 1 The Theory of Sea Floor Spreading Page 99 Slide 2 Sea Floor Spreading Harry Hess (1960) as the ocean floor spreads apart, new crust material rises from the mantle…

Slide 1 Continental Drift- The Theory Slide 2 The Earth’s crust is broken into about 12 rigid plates, which slide over a semi-molten plastic layer of the mantle. Slide…

Slide 1 1 Plate Tectonics Slide 2 2 Earth’s crust is cracked and fragmented –Fragments called plates The Earth’s mantle is very hot and fluid, so the plates move atop…

Slide 1 Theory of Continental Drift Cornell Notes Pg. 93 Slide 2 The Theory of Continental Drift Alfred Wegener Alfred Wegener (1910) Formed a hypothesis that all the continents…

Slide 1 Sea-Floor Spreading Key Concepts What is the process of sea-floor spreading? What is the evidence for sea-floor spreading? What happens at deep-ocean trenches? Slide…

Slide 1 FQ: How could continents move apart? 1. Think, pair, share 2. Write your ideas in your scientist notebook Slide 2 Mapping the Ocean Floor Sonar was used in the mid…

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