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This article explores the theory of plate tectonics, beginning with Alfred Wegener's revolutionary ideas in 1910 about continental drift. We delve into the movements of Earth's plates, which have shaped our planet over millions of years, from the formation of the supercontinent Pangea to the current dynamics of plate interactions. Discover the processes of subduction, mid-ocean ridges, and the significance of convergent and divergent boundaries. Join us in understanding how these movements lead to the formation of mountain ranges, earthquakes, and the ever-changing landscape of Earth.
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The Theory In 1910 Alfred Wegener begins to wonder…. What’s the relationship? Perhaps all these pieces used to be connected. Continental drift=slow movement over Earth’s surface It all started 300 million years ago………..
Supercontinent • Pangea –(Greek) all lands Tens of Millions of years!
plates are moving apart • new crust is created • Magma is coming to the surface • plates are comingtogether • crust is returning to the mantle • plates are slipping past each other • crust is not created or destroyed
2 oceanic plates or oceanic + continental subduction
Homework- Vocabulary convergent boundary divergent boundary transform boundary subduction mid-ocean ridge continental crust oceanic crust mountain range earthquake
