Mineralogical properties (XRD, DTG) and chemical compositions of some chlorite-smectite interlayer minerals in alteration products of ophiolitic rocks from the Northern Apennines are presented and discussed. The presence of iron hydroxides and the continuous variation in A1203 content suggest that the corrensites are intermediate stages in the process of alteration of chlorite to smectite in an environment characterized by high element mobility. A thermal test to characterize the swelling component of the interlayer species is proposed.
"Corrensite-like minerals" in the Taro and Ceno Valleys, Italy / Brigatti, Maria Franca; Poppi, Luciano. - In: CLAY MINERALS. - ISSN 0009-8558. - STAMPA. - 19:(1984), pp. 59-66.
"Corrensite-like minerals" in the Taro and Ceno Valleys, Italy
BRIGATTI, Maria Franca;POPPI, Luciano
1984
Abstract
Mineralogical properties (XRD, DTG) and chemical compositions of some chlorite-smectite interlayer minerals in alteration products of ophiolitic rocks from the Northern Apennines are presented and discussed. The presence of iron hydroxides and the continuous variation in A1203 content suggest that the corrensites are intermediate stages in the process of alteration of chlorite to smectite in an environment characterized by high element mobility. A thermal test to characterize the swelling component of the interlayer species is proposed.
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