Plutonism Definition

noun

The old geological theory that the rocks forming the Earth were formed in fire by volcanic activity, with a continuing gradual process of weathering and erosion, then deposited on the sea bed, re-formed into layers of sedimentary rock by heat and pressure, and raised again.

Wiktionary

Other Word Forms of Plutonism

Noun

Singular:
plutonism
Plural:
plutonisms

Origin of Plutonism

  • Pluto +‎ -ism, after the classical ruler of the underworld.

    From Wiktionary

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