Propiedades petroestructurales de rocas madres de petróleo.Pizarras bituminosas del Cretácico superior de la cuenca vasco-cantábrica.

  1. Marfil Pérez, Rafaela
  2. Dorronsoro Urrutia, Carmen
  3. Permanyer Bastardas, Albert
  4. R. Aguiló
Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 1992

Número: 13

Páginas: 76-81

Tipo: Artículo

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Otras publicaciones en: Geogaceta

Resumen

Black shales from Carai (Vizcaya) have been studied from the following points of view: mineralogy, geochemistry (pyrolysis rock-eval), porosimetry measurements and clay fabric. Data obtained suggest that: a) The presen ce of organic matter exerts a secondary influence in con trolling porosity and clay fabric, b) A significant percentage of carbonate minerals inhibit clay particle orientation, c) There is little or no connection between porosity and/or fabric and clay mineral composition, except perphaps in sediments with appreciable mixed-layers l-S content, d) There seems to be no relationship between porosity and/or fabric and total clay content, e) Compaction processes are not the main control on the structural properties of these rocks

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