La dolomitización de la base de la Formación «Dolomías de Landete» en la Sierra de Espadan, (Castellón): datos de geoquímica isotópica (C, O y Sr) e inclusiones fluidas

J. Tritlla ^[1] ; E. Cardellach ^[2]
1. [1] Universitat de Barcelona
  
  Universitat de Barcelona
  
  Barcelona, España
2. [2] Universitat Autònoma de Barcelona
  
  Universitat Autònoma de Barcelona
  
  Barcelona, España
Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 3, 1996, págs. 666-669
Idioma: español
Títulos paralelos:
- Dolomitization at the base of the «Landete Do/ostones» formation in Sierra de Espadán (Castellón province): isotopic geochemistry (C, O and Sr) and fluid inclusion data
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Resumen
- The dolomitization affecting the basal facies of the «Landete Dolostone» Formation in Sierra de Espadán (Castellón Province, lberian Ranges) has been studied using fluid inclusions, stable (C and O) and radiogenic (Sr) isotopes. Two different processes have been found: (1) a pervasive epigenetic dolomitization originated by mixing of two different fluids of contrasted composition, and (2) the generation of «zebra»-like rhythmic textures formed from hot (215 ºC), high salinity (20-24 wt% eq NaC/) connate fluids equilibrated with the enclosing dolostone (8 180H20= + 13.0%0). A link between this high temperature event and the presence of a Hg deposit in the area is proposed.