~990 Ma peak granulitic metamorphism and amalgamation of Oaxaquia, Mexico: U–Pb zircon geochronological and common Pb isotopic data

The ~1 Ga Oaxacan Complex is the largest exposure of the Oaxaquia terrane of Mexico. Microprobeanalysis of co-existing ortho- and clino-pyroxene, garnet, ilmenite and plagioclase indicate metamorphicconditions of 735 ± 5° C and 7.7 ± 0.1 kbar in the granulite facies, which was dated between ~998 and...

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Bibliographic Details
Published in:Revista Mexicana de Ciencias Geológicas
Main Authors: J. Duncan Keppie, Kenneth L. Cameron, Robert Lopez, Luigi A. Solari, Fernando Ortega Gutiérrez
Format: Artigo
Language:Inglês
Published: Universidad Nacional Autónoma de México 2004
Subjects:
Ciencias de la Tierra
Oaxaquia
Pb geochronology
Grenvillian Orogeny
granulite metamorphism
Online Access:https://www.redalyc.org/articulo.oa?id=57221202
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