Relación temporal entre metamorfismo y magmatismo en el macizo de lys-caillaouas (pirineo central)

  1. José Julián Esteban 1
  2. Aitor Aranguren 1
  3. Julia Cuevas 1
  4. Jose María Tubía 1
  5. Asier Hilario 1
  6. Alexander Larionov 2
  7. Sergey Sergeev 2
  1. 1 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info
    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

    Geographic location of the organization Universidad del País Vasco/Euskal Herriko Unibertsitatea
  2. 2 Centre of Isotopic Research, Rusia
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 2015

Issue: 58

Pages: 71-74

Type: Article

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Abstract

Igneous and metamorphic zircons from the Lys-Caillaouas pluton have been identified according to their petrographic and geochemical characteristics. The igneous zircons constraint an age of 300 ± 2 Ma for the emplacement of the pluton. By contrast, the metamorphic zircons yield a slightly older age of 307 ± 3 Ma, which probably dates the thermal peak of HT/LP Variscan metamorphism. Therefore, a short time lag of ca. 7 m.y. emerges between the Variscan metamorphic climax and the synkinematic (late-Carboniferous) pluton emplacement in the Axial Zone of the Pyrenees.

Data source: Dialnet