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Terms in this set (20)
volcanic eruptions, the formation and breakdown of rock, and major movements of matter within or below the surface of the earth.
protection of soil against erosion or deterioration
Horizontal zones that make up a particular mature soil. Each horizon has a distinct texture and composition that vary with different types of soils.
a warm ocean current that flows along the equator from the date line and south off the coast of Ecuador at Christmas time
The scientific study of the origin, history, and structure of the earth.
a dense ball of solid metal, surrounded by a layer of molten material
Just below the crust. It is around 1800 miles thick and made mostly of solid rock. It is very hot, around 5400 degrees
The outer layer of the Earth. It is a relatively thin layer of rock that coats the earth.
individual sections of the lithosphere of the earth. They are always moving very slowly, floating on the molten rock of the mantle.
the solid, outer layer of the earth that consists of the crust and the rigid upper part of the mantle
Divergent plate boundary
where two plates are moving apart, magma comes up to create new crust
Area where the earth's lithospheric plates move in opposite but parallel directions along a fracture (fault) in the lithosphere.
The breaking down of rocks and other materials on the Earth's surface.
a lump or mass of hard consolidated mineral matter
a metal-bearing mineral valuable enough to be mined
produced by fire, great heat, or the action of a volcano; solidified from a molten state. Igneous rock is formed by the cooling and solidification of magma.
A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions
sequence of events in which rocks are formed, destroyed, altered, and reformed by geological processes
a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
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