Resistencia a la alteración diagenética de conchas de Chondrodonta sp en las calizas rojas del Aptiense-Albiense inferior de Ereño (Bizkaia)

• Autores: Laura Damas Mollá, Arantza Aranburu Artano, Francisco García Garmilla
• Localización: Geogaceta, ISSN 0213-683X, Nº. 40, 2006, págs. 195-198
• Idioma: español
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• Resumen

  • Chondrodonta sp. shells from Aptian � Lower Albian red limestones of Ereño (Bizkaia, northern Spain) have proved to be excellent indicators of a high resistance to the entrance of diagenetic fluids and further diagenetic alteration. Chondrodonta sp. shells, when compared to their coeval rudist shells, show higher Sr+2 and Na+ contents, together with very dull or even null luminescence. For this reason they could be very appropriate for further C, O an Sr isotopic studies as a tool for reconstruction of palaeotemperatures and palaeoenvironmental conditions.