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The x-ray identification and crystal structures of clay minerals
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The article was published on 1961-01-01 and is currently open access. It has received 966 citations till now. The article focuses on the topics: Clay minerals.read more
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Silica from sepiolite: Preparation, textural properties, and use as support to catalysts
TL;DR: In this paper, the influence of preparation conditions (acid type and concentration, solid concentration, temperature and time) on the silica properties has been studied with the aim of producing silicas which may have potential uses as catalyst supports.
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The Origin of the Montmorillonite of the European Chalk with Special Reference to the Lower Chalk of England
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Rb—Sr and K—Ar dating of Precambrian clays and glauconies
TL;DR: In this paper, a critical review of the uncertainties typically related to sedimentary dating is also proposed, which may be grouped into four types: (1) genetic uncertainties dependent on the genetic mechanisms of the studied minerals; (2) historic uncertainties depending on the alteration events imprinted in the sediments since deposition: weathering, diagenesis and/or tectono-metamorphism; (3) stratigraphic uncertainties dependent upon the precision of the sample location in the sedimentary sequence; and (4) analytic uncertainties dependent with the representativeness and the preparation
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Swelling pressure calculated from mineralogical properties of a jurassic opalinum shale, switzerland
TL;DR: In this article, 19 drill core samples of lower Dogger opalinum shale from wells drilled in connection with a tunnel project near Brugg, northern Switzerland, were investigated and the mean value of the calculated swelling pressures was found to be of the same order of magnitude as the measured values, indicating that the technique can be used where cylindrical or rectangular spec- imens are not available for direct measurement.
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The geology and petrology of Volcán San Juan (Nayarit, México) and the compositionally zoned Tepic Pumice
TL;DR: The main cone of San Juan and the adjacent Cerro Alto grew to a combined volume of ∼60 km3 through eruption of hornblende-bearing andesites, dacites, and rhyodacites as mentioned in this paper.