| 释义 |
regional metamorphismnoun GeologyMetamorphism affecting rocks over an extensive area as a result of the large-scale action of heat and pressure. Compare with contact metamorphism.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.
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