geological cycle

rock cycle

Geology. a continuous process by which rocks are created, changed from one form to another, destroyed, and then formed again.
Also called geological cycle. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
geological cycle
Also called: rock cycle the series of events in which a rock of one type is converted to one or more other types and then back to the original type

rock cycle
another name for geological cycle

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Cultural Dictionary

geological cycle definition

The continuous process in which hot, molten material coming to the surface of the Earth from the interior forms igneous rocks, which are then broken down by weathering to create soil and sedimentary rocks. These sedimentary rocks can be lifted up by the motion associated with plate tectonics, in which case they are again weathered and washed down to the sea. Alternatively, they can be buried deep within the Earth, changed into metamorphic rocks, and brought to the surface of the Earth, or buried so deeply that they are melted and become part of the magma from which igneous rocks are formed.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
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