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petrogenesis

[pe-troh-jen-uh-sis] /ˌpɛ troʊˈdʒɛn ə sɪs/
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] /pɪˈtrɒdʒ ə ni/ (Show IPA)
.
Origin
1900-1905
1900-05; petro-1 + -genesis
Related forms
petrogenetic
[pe-troh-juh-net-ik] /ˌpɛ troʊ dʒəˈnɛt ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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petrogenetic in Science
petrogenesis
  (pět'rō-jěn'ĭ-sĭs)   
The branch of petrology that deals with the origin and formation of rocks, especially igneous rocks.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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