Journal ArticleDOI
The weathering of biotite in a profile on gneiss in Malaysia
TLDR
In this paper, the authors studied a deep profile on gneiss from Malaysia and found that the alteration of biotite to halloysite takes place within a few centimeters of the fresh rock (at 18.5 m depth).About:
This article is published in Geoderma.The article was published on 1976-07-01. It has received 32 citations till now. The article focuses on the topics: Halloysite & Biotite.read more
Citations
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Weathering of the primary rock-forming minerals: processes, products and rates
TL;DR: In this article, the authors describe the ways in which the major rock-forming primary minerals (olivine, pyroxenes, amphiboles, feldspars, micas and chlorites) break down during weathering, the products that develop during this breakdown and the rates at which this breakdown occurs.
Journal ArticleDOI
Chemical Weathering in a Tropical Watershed, Luquillo Mountains, Puerto Rico: II. Rate and Mechanism of Biotite Weathering
TL;DR: In this paper, X-ray diffraction (XRD) and electron microprobe analyses indicate that the phyllosilicate grains contain a core of biotite surrounded by variable amounts of kaolinite.
Alteration, formation, and occurrence of minerals in soils
G. Jock Churchman,David J. Lowe +1 more
TL;DR: In this paper, the authors propose a method to solve the problem of "20.20.19.20" problem: 1.1.2.0.0/1.
Journal ArticleDOI
Biotite alteration in deeply weathered granite; I, Morphological, mineralogical, and chemical properties
Robert Gilkes,A. Suddhiprakarn +1 more
TL;DR: Biotite in deeply weathered granitic rocks in southwestern Australia has altered to exfoliated grains composed of biotite, mixed-layer clay minerals, kaolinite, vermiculite, gibbsite, goethite, and hematite as discussed by the authors.
References
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Soil Chemical Analysis
TL;DR: Soil chemical analysis, Soil Chemical Analysis (SCA), this paper, is a technique for soil chemical analysis that is used in the field of Soil Chemistry and Chemical Engineering.
Journal ArticleDOI
A Study of Weathering in a Soil Derived from a Biotite-Hornblende Rock
TL;DR: In this article, the weathering of biotite in a sedentary soil profile developed on Biotitehornblende-rock near Rehiran, Inverness-shire has been investigated by optical, X-ray, chemical, infrared and differential thermal methods.
Journal ArticleDOI
Biotite Flakes: Alteration by Chemical and Biological Treatment
TL;DR: Biotite alteration under acid conditions proceeds differently from the generally accepted pathway of transformation to vermiculite in which hydrated cations cause interlayer expansion, resulting in a dark-colored peripheral band on mica particles.
Journal ArticleDOI
Pedogenic weathering of tonalite in southern California
TL;DR: In this paper, the authors studied the weathering of a fragment of tonalite (quartz diorite) in southern California to depths of more than 30 m. The particle density of the resulting fragments is the same as that of the rock (2.75 g/cm 3 ).
Related Papers (5)
Biotite alteration in deeply weathered granite; I, Morphological, mineralogical, and chemical properties
Robert Gilkes,A. Suddhiprakarn +1 more