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TECTONIC PLATES

Horizontales
The dozen or so of these that make up the surface of the Earth
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
a natural elevation of the earth's surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2,000 feet
a proposed explanation whose status is still conjectural and subject to experimentation, in contrast to well-established propositions that are regarded as reporting matters of actual fact
the lateral movement of continents resulting from the motion of crustal plates
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
the molten, fluid rock that issues from a volcano or volcanic vent
divided into several plates that glide over the Earth's rocky inner layer above the soft core (mantle)
a form of mass wasting involving fast-moving flow of debris and dirt that has become liquified by the addition of water
the planet third in order from the sun
Verticales
Earth's thick outer shell of rock
produced by melting and casting
used to describe the size of earthquakes
referring to the forces or conditions within the earth that cause movements of the crust
the gaseous envelope surrounding the earth
molten material beneath or within the earth's crust, from which igneous rock is formed
a sudden and destructive rush of water down a narrow gully or over a sloping surface, caused by heavy rainfall
the powdery residue of matter that remains after burning
an unusually large sea wave produced by a seaquake or undersea volcanic eruption
large area of exposed Precambrian crystalline igneous and high-grade metamorphic rocks that form tectonically stable areas