Plutonism and the origin of metamorphic core complexes

G. S. Lister, S. L. Baldwin

Research output: Contribution to journalArticlepeer-review

229 Scopus citations


The formation of metamorphic core complexes may be triggered by plutonic activity during episodes of continental extension. Pulses of ductile deformation have taken place during short-lived thermal events initiated by the heat input from intruded plutons, sills, or dikes. Such intrusions may be the underlying cause for differential uplift of the footwall during tectonic denudation of metamorphic core complexes. Heterogeneity of 40 Ar/ 39 Ar apparent ages can be explained by rapid cooling of deforming mylonites formed at shallow crustal levels in the thermal aureoles of intruded sills. -from Authors

Original languageEnglish (US)
Pages (from-to)607-610
Number of pages4
Issue number7
StatePublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Geology


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