Un ejemplo de paleocaverna con relleno calizo brechoide (Punta Arenillas, Albiense inferior, Cantabria).

• Autores: Idoia Rosales, Pedro Angel Fernández Mendiola, Joaquín García Mondéjar
• Localización: Geogaceta, ISSN 0213-683X, Nº. 10, 1991, págs. 124-127
• Idioma: español
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• Resumen

  • The Lower Albian pimacle platform of Arenillas in Castro-Urdiales (Cantabria, northern Spain) shows a paleocavern about 120 m long and 40 m high, whose base is 60 m below an unconformity. This vadose structure is infil/ed with breccia clasts up to 4 m long which have terrigenous matrix in the Iower part and carbonate matrix in the upper-central part. The paleo-cavern was formed during a phase of subaerial exposure, and was fil/ed from local and externa/ sources during the ensuing marine transgression