plutonism

[ploot-n-iz-uhm]

plu·to·nism

[ploot-n-iz-uhm]
noun Geology.
1.
the intrusion of magma and associated deep-seated processes within the earth's crust.
2.
(often initial capital letter) the disproven theory that all rocks formed by solidification of a molten mass, promulgated by Scottish geologist James Hutton (1726–97).

Origin:
1840–50; pluton(ic) + -ism

plu·to·nist, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Plutonism is always a great word to know.
So is crust. Does it mean:
seepage of water into soil or rock
outer layer of the earth, about 22 miles deep under the continents and 6 miles deep under the oceans
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