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Plate Tectonics

Horizontales
a large piece of the lithosphere that floats and moves on the asthenosphere
(primary waves) seismic body waves transmitted by alternating pulses of compression and expansion (push‐pull)
a dropped zone where two tectonic plates are pulling apart
occurs where two plates move apart, allowing magma, or molten rock, to rise from the Earth's interior to fill in the gap. The two plates move away from each other like two conveyor belts moving in opposite directions
a huge ocean wave caused by a sudden, powerful shift on the ocean floor, like an undersea earthquake, landslide, or volcanic eruption
The point of origin of an earthquake
an area where two or more tectonic plates meet
occurs where two land masses on plates are pushed together, trying to occupy the same space, the land masses buckle and fold, creating mountain ranges
The point on earth’s surface that is vertically above the focus of an earthquake
Melted rock under the Earth's surface
(secondary waves) seismic body waves transmitted by alternating series of sideways (shear) movements in a solid
a layer of the earth's crust that lies under the seven continents. It is about 20 to 40 miles (35 to 70 km) thick and very old
any of various instruments for measuring and recording the vibrations of earthquake
a deep valley that forms at the edge of a continent when an oceanic plate sinks underneath a continental plate
Verticales
the name given to the supercontinent that existed more than 225 million years ago, in which the present‐day continents were joined together in one large landmass
occurs where one plate slides under another as the two are pushed together. If there is land at the edge of one of these plates, the ocean plate will subduct, or slide under that plate
made up of the crust and a tiny bit of the upper mantle, this zone is divided into several constantly (very slowly) moving plates of solid rock that hold the continents and oceans
a raised area or mountain range under the oceans formed when magma fills the space between two tectonic plates that are spreading apart
Melted rock above the Earth's surface
occurs where two land masses on plates are pushed together, trying to occupy the same space, the land masses buckle and fold, creating mountain ranges
a trembling and shaking of the earth's surface resulting from the sudden release of energy in the crust, either along fault lines or from volcanic activity
the solid outer part of Earth that includes the crust and upper mantle
The outer hard later of the Earth
a crack or fracture in Earth's crust where two tectonic plates grind past each other in a horizontal direction