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Transcript
Theory of Plate Tectonics Notes Theory of Plate Tectonics • Links the ideas of and ocean floor over time. and explains how the earth has • Explains the , movement, and destruction of the Earth’s crust. Lithosphere • Top most part of the . Lithospheric Plate • Moving irregular shaped make the earth’s • There are . major and move at different that fit together to which are different . Plate Motion • Convection • Caused by differences in move plates. . The Earth’s Spreading Ocean Floor Mid-ocean Ridges Under water Trenches V shaped valleys at the found on the . Deepest part of the and . of oceans, which are usually of continents and Ocean Floor Spreading Lava erupts at rift valleys and form new ocean Explains how the continents move. Subduction Process in which . Rocks are pushed are They to . crust plunges back into the into trenches where they by the heat of the earth. . Evidence to Support Ocean Floor Spreading Rock agerocks are found near rift valleys and rocks are found near . Magnetic Stripes- magnetic rock line up with the equally on sides of the mid-ocean .