The P-T-t history of blocks in serpentinite-matrix melange, west- central Baja California

S. L. Baldwin, T. M. Harrison

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

Thermochronologic, petrologic, and geochemical analyses of epidote-amphibolite-, amphibolite-, eclogite-, and blueschist-facies blocks in serpentinite-matrix melanges from East San Benito Island and Cedros Island, west-central Baja California, provide constraints on the P-T-t history of this disrupted terrane. Results of 40 Ar/ 39 Ar step heating experiments on minerals separated from these blocks vary according to metamorphic grade and indicate different P-T-t histories. -from Authors

Original languageEnglish (US)
Pages (from-to)18-31
Number of pages14
JournalGeological Society of America Bulletin
Volume104
Issue number1
DOIs
StatePublished - Jan 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Geology

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