
handle: 10366/79791
RESUMEN: Se estudian los materiales margosos de edad Neógena que añoran en las proximidades de Villamuriel de Cerrato, provincia de Palencia (Cuenca del Duero). En ellos se ha observado la presencia prácticamente constante de sepiolita, paligorskita e iluta y ocasionalmente de esmectitas y caolinita. La sepiolita predomina sobre el resto de minerales arcillosos. Se revisan las condiciones genéticas que conducen a la formación de los minerales fibrosos de la arcilla. En nuestro caso se observa una relación directa entre procesos de disolución de dolomita, formación de un gel silicatado y desarrollo de fibras incipientes de sepiolita y paligorskita a partir de él.
Geolog?a, Geología, Geology
Geolog?a, Geología, Geology
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