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The x-ray identification and crystal structures of clay minerals
01 Jan 1961-
About: 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.
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TL;DR: In this article, ausammenfassung Messungen der dielektrischen Permeabilitat ϵ' und des dielektriche Absorptionskoeffizienten ϵ″ an Einkristallen von glimmerartigen Schichtsilicaten (Vermiculiten) im Frequenzbereich zwischen 30 Hz and 10 MHz zeigen ein niederfrequentes diele-ktrisches Absorbgebiet.
5 citations
TL;DR: Analyses of surface sediments from 30 localities in the Niger Delta showed that the distribution and nature of clay minerals are related to source and hydro-dynamic processes as discussed by the authors.
5 citations
TL;DR: The products obtained by precipitation of iron(III)-phosphates in the pH-range from 2 to 13.35 differ in their composition from the ones reported in the literature, e.g. as mentioned in this paper.
5 citations
01 Jan 1975
TL;DR: The micas are very important mineralogical components of a wide range of agriculturally significant soils as discussed by the authors, and their mineralogy has been systematically studied by Radoslovich [1958], who showed that illitic minerals generally make up from 40 to 60% of the clay fraction.
Abstract: The micas are very important mineralogical components of a wide range of agriculturally significant soils. For example, the red-brown earths in Australia cover large areas of the most productive wheat-growing country. Their clay mineralogy has been systematically studied by Radoslovich [1958], who showed that illitic minerals generally make up from 40 to 60% of the clay fraction, which is itself the major fraction of the whole soil. This kind of result would be typical for many soils in the main agricultural zones of the world. The micaceous clay minerals in such soils are important because of their chemistry (e.g., as sources of nutrient elements) and because of their colloidal properties (e.g., their large surface areas which may be highly reactive). Their platy morphology contributes to the physical properties of many soils having a moderate to heavy texture—e.g., the formation of “cutans” as studied by micropedologists (Brewer [1964]).
5 citations