Thermodynamics Of The Earth In Regards To Convection And It's Relationship To Plate Tectonics, Volcanoes, And Earthquakes

727 words - 3 pages

The Earth’s crust and upper mantle is called the lithosphere. Plate tectonics is a theory describing the movement of the 7 major tectonic plates that make up the lithosphere. Every year tectonic plates only move a maximum distance of 100mm, when tectonic plates meet they can slide past each other or under each other resulting in earthquakes, volcanic activity, creation of mountain and islands, as well as oceanic trench formations. There are many theories on how tectonic plates move including convection. Convection is the heat waves that rise from the Earth’s molten core and influence plate activities. Convection can be attributed to volcanic activity, the expansion of the seafloor, as well ...view middle of the document...

As convection currents circulate around the molten core of Earth the lithosphere surface can become damaged and plates are pulled under and over each other leading to plate tectonic movement, ocean trenches, mountain development, volcanoes, earthquakes, and other plate movements.
The four main types of plate movements from convection currents are divergent boundaries, convergent boundaries, and transform boundaries. Divergent boundaries is where new crust is generated when adjacent plates pull away from each other and magma rises from lower layers and form new crust. Convergent boundaries are where one plate is pulled under another and magma destroys the part that goes under. Transform boundaries is where crust slides past each other due to pressure built up from convection currents, these result in earthquakes.
Recent studies show convection currents are very likely to be responsible for earthquakes, plate tectonic movement and shifting, as well as volcanic activity, and ocean floor spreading. Convection currents where observed to follow a constant turning and rising motion in any fluid environment. Convection currents from the Earth's lithosphere cause hot air pockets as well as plate...

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