Journal ArticleDOI
Quantitative Evaluation of the Kaolinite and Illite in Underclays
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In this paper, the X-ray spectrometer was used to study twelve different mixtures of kaolinitic and illitic underclays and the resulting curves were evaluated on the basis of the area of the 001 peaks.Abstract:
Oriented slides of twelve different mixtures of kaolinitic and illitic underclays were studied with the X-ray spectrometer and the resulting curves were evaluated on the basis of the area of the 001 peaks. Although the areas from the unmixed components varied greatly, within any given mixture the two clays were quantitatively comparable on the basis of a 1/1 001 peak area ratio. The considerable peak area variations from slide to slide are the result of different degrees of preferred orientation and are not due to any appreciable differences in crystallinity. Mixed-layering of expandable material with the illitic component does not affect the quantitative comparisons significantly.read more
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The Routine Mineralogical Analysis of Clay-Bearing Samples
TL;DR: In this paper, the authors propose a method to solve the problem of "uniformity" and "unweighting" of data points.................................................................................................................................................................................................................................(1)
Journal ArticleDOI
Environmental Studies of Carboniferous Sediments. Part II: Application of Geochemical Criteria
TL;DR: In this paper, the fresh-water or marine character of sedimentary rocks can be determined by geochemical criteria, such as boron, gallium, and rubidium abundances.
Journal ArticleDOI
Quantitative X-ray Determinations of some Aluminous Clay Minerals in Rocks1
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Journal ArticleDOI
Clay-Mineral Environmental Relationships in Cisco (U. Penn.) Clays and Shales, North Central Texas
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