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Exam Word List

hot rocks exam word list

subduction relates to convection currents, gravity and rock density
weathering the various mechanical and chemical processes that cause exposed rock to decompose.
erosion the process by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, etc.
sediments mineral or organic matter deposited by water, air, or ice.
crust the outer layer of the earth, thinnest and coolest layer
tectonic plates The dozen or so plates that make up the surface of the Earth. Their motion is studied in the field of plate tectonics.
volcano a mountain or hill, usually having a cuplike crater at the summit, formed around such a vent from the ash and lava expelled through it.
reverse fault a fault in which the rock above the fault plane is displaced upward relative to the rock below the fault plane
normal fault Normal Faults occur when tensional forces act in opposite directions and cause one slab of the rock to be displaced up and the other slab down
anticline Folds which bend upwards
synclines Folds which bend downwards
mantle the portion of the earth, thick, between the crust and the core
inner core he innermost part of a core, specif. a solid sphere in the middle of the fluid core such as the iron-nickel core of the Earth
earthquake a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating.
subduction zone the process by which collision of the earth's crustal plates results in one plate's being drawn down or overridden by another, localized along the juncture (subduction zone) of two plates.
Created by: tvu004k