petro-genesis

petrogenesis

[pe-troh-jen-uh-sis]
noun
1.
the branch of petrology dealing with the origin and formation of rocks.
2.
the origin and formation of rocks.
Also called petrogeny [pi-troj-uh-nee] .


Origin:
1900–05; petro-1 + -genesis

petrogenetic [pe-troh-juh-net-ik] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
petrogenesis   (pět'rō-jěn'ĭ-sĭs)  Pronunciation Key 
The branch of petrology that deals with the origin and formation of rocks, especially igneous rocks.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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