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What are Plate Tectonics?
The Theory of Plate Tectonics states that the Earth's solid outer crust (Lithosphere) is divided into different plates that over a period of time move over the Asthenosphere (The molten upper portion of the mantle). When these plates move, oceanic and continental plates can come together (Converge), Move apart (Diverge), or move past each other (Transform).
Convergent Boundaries
Convergent boundaries are when two or more plates move towards each other and collide. When this happens, the denser plate will move under the less dense plate which will cause it to form Volcanic Mountains.
Divergent Boundaries
Divergent boundaries are when two or more plates move apart from each other. When this happens, earthquakes occur in which magma (molten rock) rises up from the magma into the Earth's ocean which causes it too cool and form new oceanic crusts.
Transformative Boundaries
Transformative Boundaries are when two plates slide / move past each other horizontally. When this happens, it forms earthquake fault lines which are fractures located inside the Earth's crust where rocks on the crack have slid past each other.
Why do we have Plate Tectonics?
Plate Tectonics impact our planet a lot. Without it, Earth would be very different. The constant recycling of Earth's oceanic and continental crusts give us a stable climate and a beautiful ocean with life. The driving force behind plate tectonics is convection in the mantle which is when. In simple terms, convection is like a boiling pot. Heated soup rises to the surface, spreads and begins to cool, and then sinks back to the bottom of the pot where it is reheated and rises again.​
What is the Asthenosphere and Lithosphere?
The Asthenosphere is the upper layer of the Earth's Mantle (located below the lithosphere) which there is considered to be very low resistance to the plastic flow and convection (Convection is when hot material rises and cool material sinks). The Lithosphere is the rigid, outermost layer of Any planet that is classified as "terrestrial-type". On Earth, it is composed of the Crust and the portion of the upper Mantle that behaves "elastically" as time sclaes of thousands of years or more (basically is the crust and upper mantle that controls the plates and moves land on Earth). For a better look, here is something:
Asthenosphere
The Asthenosphere is the upper layer of the Earth's Mantle (located below the lithosphere) which there is considered to be very low resistance to the plastic flow and convection (Convection is when hot material rises and cool material sinks).
Lithosphere
The Lithosphere is the rigid, outermost layer of Any planet that is classified as "terrestrial-type". On Earth, it is composed of the Crust and the portion of the upper Mantle that behaves "elastically" as time sclaes of thousands of years or more (basically is the crust and upper mantle that controls the plates and moves land on Earth).
Created by MkkGo
Created September 21st, 2020
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