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Download Earth`s Internal Structure
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Earth’s Internal Structure EURASIAN PLATE FIGURE 2 2900 km JUAN DE FUCA PLATE NORTH AMERICA 2000 km PLATE PACIFIC PLATE CARIBBEAN PLATE 1370 km PACIFIC PLATE Inner core, solid nickleiron EQUA COCOS PLATE TOR Outer core, liquid nickle-iron NAZCA PLATE Mantle, peridolite, dense igneous rock Crust (6-35 km) granitic under continents and basaltic under oceans LEGEND subduction zone spreading ridge transform fault Internal structure of the earth and the three types of plate boundaries. Convection cells of hot, molten rock deep beneath the crust provide the energy which causes plate motion on the earth's surface. Plate motion, particularly one plate moving against another, is a common cause of earthquakes. SOUTH AMERICAN PLATE
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