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A platform for research: civil engineering, architecture and urbanism
The mode of formation, mineralogy and properties of some Jamaican soils
Abstract The properties of soils as roadmaking materials are influenced by their mineralogical composition, which in turn can be related to their geological origin and conditions of formation. These relations have been illustrated in a study of a number of soil types from Jamaica. The results show how studies of the formation and mineralogy of soils can contribute to an understanding of the engineering geology of the roadmaking materials of a region. Highly leached bauxitic soils occur on the well-drained limestone formation. The least-developed contained kaolinite and quartz, as well as iron and aluminium oxides, while in the most highly-developed only iron and aluminium oxide remained. The engineering properties of these soils are influenced by the cementing effect of hematite and may be compared with those of the Kenya red soils. The limestones were principally calcite, differences in strength being due to differences in the crystalline structure and cementing. A soil formed on a poorly-drained shale had a high montmorillonite content and was similar to the black montmorillonite soils of Kenya, being highly plastic and having poor compaction characteristics. Alluvial soils from low-lying areas contained kaolinite, montmorillonite, and vermiculite or illite, had high clay contents, and were very plastic.
The mode of formation, mineralogy and properties of some Jamaican soils
Abstract The properties of soils as roadmaking materials are influenced by their mineralogical composition, which in turn can be related to their geological origin and conditions of formation. These relations have been illustrated in a study of a number of soil types from Jamaica. The results show how studies of the formation and mineralogy of soils can contribute to an understanding of the engineering geology of the roadmaking materials of a region. Highly leached bauxitic soils occur on the well-drained limestone formation. The least-developed contained kaolinite and quartz, as well as iron and aluminium oxides, while in the most highly-developed only iron and aluminium oxide remained. The engineering properties of these soils are influenced by the cementing effect of hematite and may be compared with those of the Kenya red soils. The limestones were principally calcite, differences in strength being due to differences in the crystalline structure and cementing. A soil formed on a poorly-drained shale had a high montmorillonite content and was similar to the black montmorillonite soils of Kenya, being highly plastic and having poor compaction characteristics. Alluvial soils from low-lying areas contained kaolinite, montmorillonite, and vermiculite or illite, had high clay contents, and were very plastic.
The mode of formation, mineralogy and properties of some Jamaican soils
Dumbleton, M.J. (author) / West, G. (author) / Newill, D. (author)
Engineering Geology ; 1 ; 235-249
1965-10-14
15 pages
Article (Journal)
Electronic Resource
English
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