Reply to the comment by Michard et al. on “Evidence of extensional metamorphism associated to Cretaceous rifting of the North-Maghrebian passive marginThe Tanger-Ketama Unit (External Rif, northern Morocco) by Vázquez et al., Geologica Acta 11 (2013), 277-293”

  1. M. Vázquez 1
  2. L. Asebriy 2
  3. A. Azdimousa 3
  4. A. Jabaloy 4
  5. G. Booth-Rea 4
  6. L. Barbero 5
  7. M. Mellini 6
  8. F. González-Lodeiro 4
  1. 1 Universidad de Chile. Andean Geothermal Center of Excellence (CEGA)
  2. 2 Université Mohammed V. Institut Scientifique
  3. 3 Université Mohammed I. Laboratoire LGA
  4. 4 Universidad de Granada. Departamento de Geodinámica
  5. 5 Universidad de Cádiz. Departamento de Ciencias de la Tierra
  6. 6 Università di Siena. Dipartimento di Scienze della Terra
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Zeitschrift:
Geologica acta: an international earth science journal

ISSN: 1695-6133

Datum der Publikation: 2015

Ausgabe: 13

Nummer: 1

Seiten: 77-82

Art: Artikel

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Andere Publikationen in: Geologica acta: an international earth science journal

Zusammenfassung

Michard et al. (this issue) commented on certain aspects of the Alpine metamorphism and structural evolution of the Rif belt (Morocco) that were briefly noted in Vázquez et al. (2013). In particular, they criticize our interpretation of an extensional setting during the main metamorphic recrystallization of the Tanger-Ketama Unit that we considered related to slaty cleavage (S1) parallel to the lithological layering generated during the Cretaceous. Michard et al. (this issue) interpret the S1 syn-metamorphic foliation as being related to compressional folds, and the peak metamorphism temperatures, in the Lower Cretaceous sediments, as ranging between 200–300°C. Therefore, they conclude that recrystallization of the Ketama Unit occurred during Miocene thrust nappe tectonics. We explain our view in the following sections.

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