Stratigraphycal and petrographycal aspects of jurassic volcanism of the peruvian south coast (departments of Moquegua and Tacna)

Authors

  • V. Alejandro Convenio IRD-UNMSM, EAP Ingeniería Geológica, Universidad Nacional Mayor de San Marcos.
  • T. Sempere IRD, LMTG, Observatoire Midi-Pyrénées, 31400 Toulouse, Francia.
  • J. Jacay Convenio IRD-UNMSM, EAP Ingeniería Geológica, Universidad Nacional Mayor de San Marcos.

DOI:

https://doi.org/10.15381/iigeo.v9i18.2769

Keywords:

Magmatism, Volcanism, Petrography, Tectonics

Abstract

Petrographycal aspects of jurassic volcanic deposits of the Peruvian south coast are analyzed in the present work, which correspond to andesites and basalts corresponding to the Chocolate Formation and Chert stratified facies of the Guaneros Formation, the volcanic ones belong to a system of volcanic arc whereas deposits of the Guaneros Formation are signal of a cortical thinning for this period in the Peruvian South margin.

Author Biographies

  • V. Alejandro, Convenio IRD-UNMSM, EAP Ingeniería Geológica, Universidad Nacional Mayor de San Marcos.
  • T. Sempere, IRD, LMTG, Observatoire Midi-Pyrénées, 31400 Toulouse, Francia.
  • J. Jacay, Convenio IRD-UNMSM, EAP Ingeniería Geológica, Universidad Nacional Mayor de San Marcos.

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Published

2006-12-15

Issue

Section

Artículos científicos

How to Cite

Alejandro, V., Sempere, T., & Jacay, J. (2006). Stratigraphycal and petrographycal aspects of jurassic volcanism of the peruvian south coast (departments of Moquegua and Tacna). Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 9(18), 44-63. https://doi.org/10.15381/iigeo.v9i18.2769