Evolución tectono-metamórfica Chánica del Complejo Guarguaraz, Cordillera Frontal de los Andes (Mendoza, Argentina)

  1. J. García-Sansegundo 1
  2. G. Gallastegui 2
  3. P. Farias 1
  4. A. Rubio-Ordóñez 1
  5. A. Cuesta 1
  6. N. Heredia 2
  7. L. Giambiagi 3
  8. P. Clariana 2
  1. 1 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

  2. 2 Instituto Geológico y Minero de España
    info

    Instituto Geológico y Minero de España

    Madrid, España

    ROR https://ror.org/04cadha73

  3. 3 IANIGLA-CCT MENDOZA
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Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2016

Issue Title: IX CONGRESO GEOLÓGICO DE ESPAÑA

Issue: 16

Pages: 427-430

Type: Article

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Abstract

Pre-Carboniferous series in the Guarguaraz Complex are formed by three metamorphic units, deformed during three deformation episodes belonging to the Chanic orogeny. The first episode is represented by little, recumbent and NO verging folds, with an associated cleavage (S1) partially developed under HP metamorphic conditions. During the second deformation event (D2), the emplacement of the NO verging La Yesera thrust produced the exhumation of a part of the rocks of the complex. NO verging folds and S2 crenulation cleavage formed associated to the thrust. Mineral assemblages and crystallization-deformation relationships indicate that D2 event took place in descent pressure metamorphic conditions, which is coherent with said exhumation.

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