Yacimiento de arcilla caolinífera de relleno Kársitico en Chavaler: (Cordillera Ibérica, Soria)

• Autores: Esther Sanz Montero
• Localización: Geogaceta, ISSN 0213-683X, Nº. 35, 2003, págs. 95-97
• Idioma: español
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• Resumen

  • The Chavaler karstic deposit is a clay accumulation in a dolina of 90 m in diameter. Clay minerals are represented mainly by kaolinite (80% kaolinite, 20% quartz) and locally also kaolinite-gibbsite facies, and natroaluite. The feldespatic detrital material of the Weald Facies was deposited on a pre-existing prefinimiocene-Pleistocene karst. The karst depression has protected kaolinic deposits from further erosion. The favourable drainage contributed to the kaolinization and initial bauxitization.