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Apologia Marine Bio

Apologia Marine Biology Module 1 Vocabulary

QuestionAnswer
Oceanic Crust The portion of the earth's crust that primarily contains basalt, is relatively dense, and is about 5 kilometers thick
Continental crust The portion of the earth's crust that primarily contains granite, is less dense than oceanic crust, and is 20 to 50 kilometers thick
Plate tectonics A process involving the movement of large plates on the earth's mantle
Mid-ocean ridge A continuous chain of underwater volcanic mountains encompassing the earth
Seafloor spreading The process that creates new sea floor as an area moves away from the mid-ocean ridges
Subduction The downward movement of one plate into the earth's mantle when two plates collide
Continental shelf The gently sloped, shallow section of the edge of a continent, extending from the shore to the point where the slope gets steeper.
Continental slope The steeper section of a continental edge, extending seaward from the continental shelf
Continental rise The gently sloping area at the base of the continental slope
Specific heat The amount of energy required to raise the temperature of one gram of a substance by 1.00 degree Celsius
Salinity The total amount of salt dissolved in a solvent
Coriolis effect The way in which the rotation of the earth bends the path of winds and resulting sea currents
Gyres Large, mostly circular systems of surface currents driven by the wind
Spring tide A time of largest tidal range due to the gravitational pull of the aligned sun and moon (during full moon and new moon)
Neap tide A time of smallest tidal range due to the gravitational pull of the aligned sun and moon (during quarter moons)
Created by: sandcroberts