Jurassic to early cretaceous subduction-related magmatism in the coastal cordillera of northern chile 18°30-24°s: geochemistry and petrogenesis Report as inadecuate




Jurassic to early cretaceous subduction-related magmatism in the coastal cordillera of northern chile 18°30-24°s: geochemistry and petrogenesis - Download this document for free, or read online. Document in PDF available to download.

Diego Morata ; Luis Aguirre ; Gilbert Féraud ; Michel Fornari ;Andean Geology 2007, 34 2

Author: Verónica Oliveros

Source: http://www.redalyc.org/


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Andean Geology ISSN: 0718-7092 revgeologica@sernageomin.cl Servicio Nacional de Geología y Minería Chile Oliveros, Verónica; Morata, Diego; Aguirre, Luis; Féraud, Gilbert; Fornari, Michel Jurassic to Early Cretaceous subduction-related magmatism in the Coastal Cordillera of northern Chile (18°30-24°S): geochemistry and petrogenesis Andean Geology, vol.
34, núm.
2, julio, 2007, pp.
209-232 Servicio Nacional de Geología y Minería Santiago, Chile Available in: http:--www.redalyc.org-articulo.oa?id=173918417003 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Jurassic to Early Cretaceous subduction-related magmatism in the Coastal Cordillera of northern Chile (18°30’-24°S): geochemistry and petrogenesis Verónica Oliveros Diego Morata Luis Aguirre Gilbert Féraud Michel Fornari Departamento de Geología, Universidad de Chile, Casilla 13518, Correo 21, Santiago, Chile volivero@ing.uchile.cl dmorata@ing.uchile.cl luaguirr@ing.uchile.cl UMR 6526 Géosciences Azur, IRD-CNRS-UNSA, Université de Nice- Sophia Antipolis, 06108 Nice cedex 02, France feraud@unice.fr fornari@unice.fr ABSTRACT Jurassic to Early Cretaceous magmatism in the Coastal Cordillera of northern Chile is represented by thick sequences of mostly basaltic-andesitic to andesitic lava flows and minor sedimentary rocks.
The volcanic sucession was intruded by large plutonic bodies and smaller stocks and dikes.
New geochemical data, including major and trace elements for a suite of Middle to Upper Jurassic volcanic and plutonic rocks from six localities in the Coastal Cordillera (18°30-24°S), are presented here.
The volcanic rocks are characterized by their petrological and chemical homogeneity; they are highly porphyritic basaltic-andesites and andesites w...





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