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metamorphism

metamorphism

8.8
A change in rocks caused by heat, pressure, or new chemicals
  • noun
  • /ˌmɛtəˈmɔrfɪzəm/
  • Specialized
translation icon : metamorfismo

Examples

  • Such time scales are orders of magnitude shorter than those of regional tectonism and metamorphism, which are typically of the order of 10^6 - 10^7 years (e.g., England and Thompson 1984).

    Academic text (2018)
  • The last element of the primary igneous microstructure to be lost during textural equilibration is the grain shape, as can occur during the high-grade metamorphism of felsic igneous rocks.

    Academic text (2018)
  • The process of metamorphism transforms limestone into marble under high heat and pressure.

  • Geologists study metamorphism to understand how rocks change over time in response to environmental conditions.

  • During metamorphism, minerals in the rock reorganize their structure due to increased temperature and pressure.

How Intense

metamorphism
  • Specialized
8.8
katamorphism
  • Specialized
9.9
diagenesis
  • Specialized
9.9
weathering
  • Specialized
2 3.6

Surface Forms

metamorphism singular
metamorphisms plural

Morphology

metamorphism = morphism (semi-transparent) = meta + morph + ism

The structure meaning 'change of form/process' is recognizable from the classical elements, but the geological sense is specialized and not fully predictable for an average learner.

Etymology

The word metamorphism comes from the Greek parts meta- meaning 'change' and morph meaning 'form' or 'shape', the same root you see in metamorphosis. So metamorphism is the 'change of form' of rocks — how heat, pressure, or new chemicals change their shape and make-up.