Results 251 to 260 of about 10,073 (308)

The mineralogical composition of some Scottish soils

The Journal of Agricultural Science, 1925
1. Previous investigations showed that certain Scottish soils were of glacial drift origin, that they were comparatively rich in unweathered silicates and therefore in reserves of plant-food, that they showed considerable variation in such silicates and were capable of classification accordingly.
Hendrick, James, Newlands, George
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SOIL MINERALOGY

1995
Recent studies of proto-imogolite, imogolite, allophanes with Si:Al molar ratios 1:2 and 1:1, proto-halloysite and hydrous feldspathoid and poorly crystalline aluminosilicates on weathered primary minerals were reviewed to contribute to understanding of poorly crystalline aluminosilicate clay minerals in soils and weathering products.
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Soil Mineralogy and Clay Minerals

2020
Soil mineralogy indicates primarily the parent materials from which the soil has developed. It also translates valuable information regarding the past climatic conditions and how the transition from past to present day climate occurred. This chapter highlights the physical phenomena like swelling and shrinkage, aggregation and thixotropy as strongly ...
S. C. Datta, Sudhansu K. Ghosh, Debarup Das   +2 more
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Soil Mineralogy and Elemental Composition

2011
Mineralogical analysis tells us what the soil is made of and charts the course of soil evolution through the processes of clay formation, accumulation, translocation and the destruction of minerals by weathering. We may consider the evolution of the varieties of chernozem, from the Calcareous to the Podzolized, as a sequence of weathering and leaching –
Igori Arcadie Krupenikov, Boris P. Boincean, David Dent   +2 more
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Geochemistry and Mineralogy of Manganese in Soils

1988
Manganese is about the tenth most abundant element in the earth’s upper continental crust with an average abundance of 650 mg kg-1 Mn. More than 250 minerals contain Mn as an essential constituent and several thousand minerals contain Mn as a minor substituent for essential structural ions such as Fe2+ and Mg2+.
R. J. Gilkes, R. M. McKenzie
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Soil Clay Mineralogy

Soil Science, 1965
C. I. RICH, G. W. KUNZE
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MINERALOGICAL ANALYSIS OF SOILS

Soil Science, 1949
C. D. JEFFRIES, M. L. JACKSON
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Clay Mineralogy and Soil Structure

2015
Most civil engineering projects are built on soil or rock and are constructed solely or partly of these materials. This chapter provides engineers with a good knowledge of the type and characteristics of the terrain on which such projects are to be constructed in order to achieve optimum safety and economic performance.
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Mineralogical Soil Analysis as an Aid in Soil Classification

Soil Science Society of America Journal, 1940
C. D. Jeffries, J. W. White
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Soil Mineralogy

Soil Science, 1927
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