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Vocab #3 Kyle Mills

Plate Tectonics

TermDefinition
Asthenosphere The layer of liquid rock between the lithosphere and mantle that causes the tectonic plates to move.
Subduction The forcing of one plate underneath another.
Seafloor Spreading The creation of new seafloor via the use of convection currents from the mantle.
Mantle Convection Convection currents that spring up from the mantle that are the cause of mid-ocean ridges.
Ridge Push The pushing of two ridges together that often create new sea-floor.
Slab Pull The pulling of tectonic plates via the force of gravity.
Lava Hot liquid rock and metal that's above the Earth's crust.
Magma Hot liquid rock and metal that's below the Earths's crust.
Tectonic Plate Large portions of our Earth's crust that have a tendency to move.
Theory of Continental Drift The theory that at one point all the continents were part of the super-continent called Pangaea but split apart due to the movement of tectonic plates.
Convergent Boundary The pushing of two tectonic plates against each other.
Divergent Boundary The pulling of two tectonic plates away from each other.
Transform Boundary The sliding of two tectonic plates past each other.
Hot Spot Areas were the heat from the mantle is exposed through the crust to the surface of the Earth.
Epicenter The center of a given thing, most often used to describe the center of earthquakes.
Focus The given origin of an earthquake.
Pangaea The name of the super-continent thought of in the theory of continental drift.
Geo-hazard A hazard/natural disaster that's caused from Earth's geological features.
Reverse Fault Similar to that of a convergent boundary, it's a fault that kind of converges together.
Strike-slip Fault Similar to that of a transform boundary, it's a fault that kind of slips past each other.
Normal Fault Similar to that of a divergent boundary, it's a fault that kind of divides away from eachother.
Compression An intense amount of mass getting sucked into one given singularity that often reduces its given size.
Tension The amount of given pressure between two appointed things.
Shearing The force used in the direction of a given mass that keeps that given object or thing moving.
Felsic Used to describe rocks that are rich in a mineral prime for creating other rocks such as quartz.
Mafic Used to describe rocks that are rich in prime minerals such as iron.
Created by: Kyle Mills
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