Cordilleran Benioff zones

Peter J. Coney, Stephen J. Reynolds

Research output: Contribution to journalArticlepeer-review

512 Scopus citations


Ages of late Mesozoic-early Cainozoic igneous rocks in south-western North America indicate a magmatic arc initiated near the continental margin, swept over 1,000 km northeastward, then swept back, all in 110 Myr. The sweep in and return are interpreted as due to flattening of a Benioff zone to < 15°followed by rapid collapse.

Original languageEnglish (US)
Pages (from-to)403-406
Number of pages4
Issue number5636
StatePublished - Dec 1 1977

ASJC Scopus subject areas

  • General


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