Book ChapterDOI
Mineral Occurrence in Soil Environments
B.L. Allen,B.F. Hajek +1 more
- pp 199-278
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The article was published on 2018-09-11. It has received 253 citations till now. The article focuses on the topics: Halloysite & Vermiculite.read more
Citations
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Journal ArticleDOI
The origin and formation of clay minerals in soils: past, present and future perspectives
TL;DR: The origin and formation of soil clay minerals, namely micas, vermiculites, smectites, chlorites and interlayered minerals, interstratified minerals and kaolin minerals, are broadly reviewed in the context of research over the past half century as mentioned in this paper.
Journal ArticleDOI
Geochemical and mineralogical indicators for aqueous processes in the Columbia Hills of Gusev crater, Mars
Douglas W. Ming,David W. Mittlefehldt,R. V. Morris,D. C. Golden,R. Gellert,R. Gellert,R. Gellert,Albert S. Yen,Benton C. Clark,Steven W. Squyres,William H. Farrand,Steven W. Ruff,Raymond E. Arvidson,Göstar Klingelhöfer,Harry Y. McSween,Daniel Rodionov,Christian Schröder,P. A. de Souza,Alian Wang +18 more
TL;DR: In this article, five distinct rock compositional classes were identified; the order for degree of alteration is Watchtower ≅ Clovis > Wishstone ≅ Peace > Backstay, and the rover's wheels uncovered one unusual soil (Paso Robles) that is the most S-rich material encountered.
Journal ArticleDOI
Clay and iron oxide pigments in the history of painting
TL;DR: In this paper, the authors give general information about geological sources and their characteristics, the literary evidence of use of different forms of earthy pigments on historical paintings, about analytical methods suitable in their identification within the ground and colour layers of the painting, and handling with the samples of works of art.
Journal ArticleDOI
Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review
TL;DR: In this paper, the authors identify relevant geochemical tracers of Si pathways within the soil-plant system to obtain a better understanding of the origin of DSi exported towards rivers.
Journal ArticleDOI
Pressure Acid Leaching of Nickel Laterites: A Review
B. I. Whittington,David M. Muir +1 more
TL;DR: A review of the literature over the past 30 years on the processing of nickel laterites by high temperature acid leaching has been carried out to provide a better understanding of the mineralogy, leaching process chemistry and effect of operating conditions on nickel recovery, residue properties and scaling as mentioned in this paper.
References
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Journal ArticleDOI
A Study in Rock-Weathering
TL;DR: In this article, the progress of the decomposition of residual clay is interpreted from a series of six samples of residual clays, and fourteen new chemical analyses of material from Medford, Massachusetts, diabase are presented as a check on the older data.
Journal ArticleDOI
The nature of opal I. nomenclature and constituent phases
J. B. Jones,E. R. Segnit +1 more
TL;DR: In this paper, the X-ray diffraction pattern was used to classify hydrous silicas into three structural groups: well-ordered α-cristobalite, opal-CT and highly disordered, near amorphous opal.
Journal ArticleDOI
The isomorphous replacement of iron by aluminium in soil goethites
K. Norrish,R. M. Taylor +1 more
TL;DR: In this article, it was shown that the aluminium content increased with decreasing particle size, and the (III) spacing showed a corresponding decrease, indicating that aluminium is a very common replacement for iron in soil goethites.
Journal ArticleDOI
Iron oxide mineralogy of some soils of two river terrace sequences in Spain
TL;DR: In this paper, the redness of iron oxides of two river terrace sequences in Spain was studied and quantitatively by X-ray diffraction (XRD) after concentrating the Fe-oxides by boiling in 5N NaOH and subtracting the step-counted diffractogram of the deferrated clay from that of the non-deferrated clay, obtaining thus a “pure” Fe-oxide diffractograms.