Cambridge University Press (CUP)

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The Mechanism of Dehydration of Mg-Vermiculite
Cambridge University Press (CUP) - - 1955
G. F. Walker
AbstractThe hydrated Mg-vermiculite lattice contains double sheets of water molecules interleaved with silicate layers. In the fully hydrated condition, each water sheet is arranged in a regular hexagonal pattern and the interlayer cations are located midway between water sheets in octahedral coordination.Release of water molecules from interlayer ...... hiện toàn bộ
Oxidizing Power of the Surface of Attapulgite Clay
Cambridge University Press (CUP) - - 1963
John G. Miller
AbstractIt has been demonstrated that ferric iron is the principal source of the oxidizing action of the surface of attapulgite clay. The extent of oxidizing action in a given time (the oxidizing power) has been determined as a function of the temperature of calcination of the clay in the range 100–900°C.The oxidizing power was measured with TiCl... hiện toàn bộ
Chemical, Physical, and Mineralogical Properties of Certain Soil Profiles in the Lower Mississippi Delta
Cambridge University Press (CUP) - - 1954
B. N. Driskell
AbstractThe soils of the lower Mississippi Delta are derived from the Mississippi or Red River depositions or some combination of these two.Profiles of the Iberia, Baldwin, Buxin, Sharkey, and Mhoon were selected for the study. The comparative results indicate that the Sharkey was highest in cation exchange capacity and exchangeable calcium and mag...... hiện toàn bộ
The Origin of High-Alumina Clay Minerals—A Review
Cambridge University Press (CUP) - Tập 12 - Trang 129-151 - 1963
Walter Keller
AbstractHigh-alumina minerals refer, in this paper, to Al-rich, normal sedimentary phases, including gibbsite, boehmite, diaspore, possibly “proto-diaspore” and “proto-alunite”, “Al-chlorite”, and corundum, in association with kaolin minerals. They may be derived from any common Al-containing rock. Processes of origin include direct bauxitization of non-clay silica...... hiện toàn bộ
Structural Irregularities in Hydrous Magnesium Silicates
Cambridge University Press (CUP) - - 1954
William Bradley
AbstractThe crystal structures of chrysotile, antigorite, attapulgite, sepiolite, vermiculite, and montmorillonite are discussed in the light of the degree to which they resemble chlorite.The proposal is advanced that the perfection of articulation between tetrahedrally and octahedrally coordinated layers is temperature-sensitive, and that the seve...... hiện toàn bộ
Effect of Sea-Water on Clay Minerals
Cambridge University Press (CUP) - Tập 7 - Trang 80-101 - 1958
Dorothy Carroll
AbstractSamples of a montmorillonite, a mixed-layer mineral (mica and montmorillonite) “illite”, kaolinite, and halloysite were immersed in 50 ml sea-water for 10 days, and additional samples of the first three were immersed for 150 days. The exchangeable cations were determined both before and after treatment. It was found that Mg2+ ions from ...... hiện toàn bộ
Interstratification in Montmorillonite
Cambridge University Press (CUP) - Tập 13 - Trang 85-93 - 1964
Rodney Tettenhorst
Abstract Direct analysis by Fourier transform methods revealed interstratification of three components for a homogeneous, potassium-treated and organic-solvated montmorillon-ite. An initial simple interpretation based on random mixing of two components was...... hiện toàn bộ
Field Trip to Wichita Mountain Area, Southwestern Oklahoma, Held in Conjunction with the Eighth National Clay Conference, October 11, 1959
Cambridge University Press (CUP) - - 1959
William E. Ham
Topotactic Transformation of Muscovite under Mild Hydrothermal Conditions
Cambridge University Press (CUP) - - 1963
Alastair W. Nicol
AbstractStudies have been made on muscovite single crystals treated under dry and hydro-thermal conditions at temperatures above 800°C. The course of reaction is markedly affected by the amount of water present in the system. In the presence of a large excess of water, appreciable reaction commences at 800°C with the formation of kalsilite and corundum. The kalsili...... hiện toàn bộ
Argillation of Three Silicate Rocks Expressed in Terms of Ion Transfer
Cambridge University Press (CUP) - - 1954
Walter Keller
AbstractThe transfer of ions during the weathering of a Medford diabase, a granite from British Guiana, and of the Cheto Arizona tuff is traced by recasting the analyses of the fresh rocks and their altered counterparts into 160-oxygen rock cells, and by comparing algebraically the products of the weathering reaction with the original reactants.Hyd...... hiện toàn bộ
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