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dc.contributor.author Atlhopheng, J.R.
dc.contributor.author Ekosse, G. I. E.
dc.date.accessioned 2011-02-10T09:08:40Z
dc.date.available 2011-02-10T09:08:40Z
dc.date.issued 2007
dc.identifier.citation Atlhopheng, J.R. & Ekosse, G.I.E. (2007) Mineralogical appraisal of sediments of duricrust suites and pans around Jwaneng area, Botswana, Journal of Applied Science and Envirommental Management, Vol.11, No.1, pp.51-56 en_US
dc.identifier.issn 1119 8362
dc.identifier.uri http://hdl.handle.net/10311/679
dc.description.abstract A mineralogical investigation of duricrust suites in Letlhakeng valley, and five pans around Jwaneng in Botswana was undertaken in order to know the mineral assemblages and infer on their landscape formation. In Letlhakeng, duricrusts comprised calcretes, silcretes and ferricretes. Calcretes were dominated by the minerals: calcite, quartz and to a lesser extent dolomite. Silcrete mineralogy was dominated by quartz, opal, and some occurrences of palygorskite, microcline and rutile. The intermediate forms of cal-silcretes yielded quartz, muscovite, and kaolinite. Ferricretes occurred on an area of the valley capping, with minerals dominated by goethite and haematite. The indurates are believed to have been formed through groundwater mechanisms. The general lowering of the valley, led to precipitation of the duricrusts. The pans were dominated by calcrete and silcrete only. The calcretes mineralogy was mainly calcite, dolomite and quartz. Illite-montmorillonite and sepiollite were also present. Samples of pan clay floor, other than being dominated by calcite, dolomite and quartz, also had sepiollite ferrian. Pans and valleys are accumulation sites, with polygenetic modes of genesis. The duricrusts have undergone several alterations throughout time. en_US
dc.language.iso en en_US
dc.publisher Bioline http://www.bioline.org en_US
dc.subject Mineralogical investigation en_US
dc.subject Duricrust suites and pans en_US
dc.subject Jwaneng en_US
dc.subject Botswana en_US
dc.title Mineralogical appraisal of sediments of duricrust suites and pans around Jwaneng area, Botswana en_US
dc.type Published Article en_US
dc.link http://www.bioline.org.br/pdf?a07009.pdf en_US


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