Composition variation of illite-vermiculitesmectite mixed-layer minerals in a bentonite bed from Charente (France)
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Composition Variation of Illite-vermiculite- Smectite Mixed-layer Minerals in a Bentonite Bed from Charente (france)
Mineralogical and chemical variations were studied in the upper half of a 1 m thick discontinuous bentonite bed interlaminated in the Lower Cenomanian sedimentary formations of the northern Aquitaine basin (France). X-ray diffraction patterns obtained from the <2 μm fraction in the Ca and K-saturated states were decomposed and compared to those calculated from decomposition parameters. They rev...
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ژورنال
عنوان ژورنال: Clay Minerals
سال: 2004
ISSN: 0009-8558,1471-8030
DOI: 10.1180/0009855043930137