Dolomías de gran escala en las plataformas epeírícas triásicas del este de la Península Ibérica

  1. F. Calvet
  2. J. López Gómez
  3. C. Galindo
  4. M.E. Tucker
  5. A. Arche
Revista:
Geotemas (Madrid)

ISSN: 1576-5172

Ano de publicación: 2001

Título do exemplar: XIV Congreso Nacional de Sedimentología, IV Congreso del Cretácico de España

Número: 3

Páxinas: 105-108

Tipo: Artigo

Outras publicacións en: Geotemas (Madrid)

Resumo

The Triassic of the Iberian Peninsula presents three carbonate epeiric platforms (Lower Muschelkalk, Upper Muschelkalk and Imon Fm.). These three carbonate platforms are intensively dolomitized with a lower part made up of grey dolomites and an upper part of white dolomites. The white dolomites are sabkha-type dolomites and the grey dolomites reflux-type dolomites. The petrography stable isotopes and Sr isotopes of the grey and white dolomites suggest a late recrystallization process related to deep burial or hydrothermal conditions during the Jurassic-Cretaceous rifting.