Definition of regional metamorphism in English:

regional metamorphism

Syllabification: re·gion·al met·a·mor·phism

noun

Geology
  • Metamorphism affecting rocks over an extensive area as a result of the large-scale action of heat and pressure. Compare with contact metamorphism.
    More example sentences
    • Orogenic or anorogenic, there was much deformation and regional metamorphism both before and during the intrusion of plutons between 1.36 and 1.47 billion years ago.
    • Field relations indicate that intrusion post-dated the peak of regional metamorphism and the main foliation-forming event.
    • One occurrence seems unrelated to igneous activity and may be the result of regional metamorphism of dolomite- and anhydrite-rich evaporites.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little