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handle: 10261/35421
[ESP]-Se realiza el estudio mineralógico de 23 muestras de arcilla procedentes de 9 yacimientos de la Provincia de Zamora, situados en terrenos terciarios y cuaternarios de la margen derecha de la Cuenca del Duero. Las técnicas empleadas han sido las siguientes: capacidad de cambio de cationes, análisis químico. análisis térmico diferencial, análisis termagravimétrico y difracción de rayos X. Se conciuye que las arcillas estudiadas están compuestas fundamentalmente por ilita, caolín y montmorillonita. El contenida en ilita oscila entre 55 y 85 %, el de caolin entre 10 y 20 7; y el de montmorillonita entre 5 y 35 7;. Las muestras XVII-1 y XVII-2 contienen también vermiculita y las muestras XII-2 y XIII-2 atapulgita.
[ENG] The mineralogical composition of twenty-three clay samples from nine deposits of the province of Zamora has been studied. The deposits are located in tertiary's and quaternary's regions on the r i ~ h t side of the Duero basin. The techniques used were mainly: cation-exchange capacity, chemical analysis, thermogravimetric analysis, differential thermal analysis and X-ray diffraction. The conclusion arrived at is that the samples are composed, mainly, by illite (55-85 %); kaolinite (10-20 %) and montmorillonite (5-35 %). The clays from samples XVII-l and XVII-2, contain vermiculite, and the clays from samples X11-2 and XIII-2, contain attapulgite as well.
Peer reviewed
14 p.
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