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| Description
| - We studied eight soil profiles near the minetailings dams located near the Cu-Pb-(Zn)-Ag mine located at Kombat (Namibia) in order to understand the wind-blown dispersion of tailings-related dust, as well as the subsequent fates of Cu and Pb in a semi-arid soil system. The combination of bulk chemical composition, leaching/extraction tests, and combined Cu and Pb isotope measurements indicated that both metals moved through the soil profiles, but that Pb was more tightly bound to the soil constituents compared to Cu. While the basement rocks yielded negative δ65Cu values, the tailings materials (the major source of contamination in the area) had positive δ65Cu values. Whereas Luvisols were mostly characterized by an increase in Cu concentration with changing δ65Cu value as a function of depth, Chernozems yielded uniform Cu concentrations and isotope compositions in all soil horizons, clearly contrasting with the isotopically lighter composition of the carbonate bedrocks. The isotope multitracing, using a combination of both Cu and Pb isotope systems, revealed that the Pb composition of soils is a result of a simple mixing between end-members (the tailings signature: 206Pb/207Pb ~ 1.14, and more-radiogenic Pb corresponding to lithogenic lead: 206Pb/207Pb ~ 1.16- 1.24); whereas Cu isotopic composition of soils resulted not only from a combination of the two signatures (tailings vs. bedrock), but was also highly affected by biogeochemical processes (e.g., sorption to soil constituents).
- We studied eight soil profiles near the minetailings dams located near the Cu-Pb-(Zn)-Ag mine located at Kombat (Namibia) in order to understand the wind-blown dispersion of tailings-related dust, as well as the subsequent fates of Cu and Pb in a semi-arid soil system. The combination of bulk chemical composition, leaching/extraction tests, and combined Cu and Pb isotope measurements indicated that both metals moved through the soil profiles, but that Pb was more tightly bound to the soil constituents compared to Cu. While the basement rocks yielded negative δ65Cu values, the tailings materials (the major source of contamination in the area) had positive δ65Cu values. Whereas Luvisols were mostly characterized by an increase in Cu concentration with changing δ65Cu value as a function of depth, Chernozems yielded uniform Cu concentrations and isotope compositions in all soil horizons, clearly contrasting with the isotopically lighter composition of the carbonate bedrocks. The isotope multitracing, using a combination of both Cu and Pb isotope systems, revealed that the Pb composition of soils is a result of a simple mixing between end-members (the tailings signature: 206Pb/207Pb ~ 1.14, and more-radiogenic Pb corresponding to lithogenic lead: 206Pb/207Pb ~ 1.16- 1.24); whereas Cu isotopic composition of soils resulted not only from a combination of the two signatures (tailings vs. bedrock), but was also highly affected by biogeochemical processes (e.g., sorption to soil constituents). (en)
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| Title
| - Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes
- Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes (en)
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| skos:prefLabel
| - Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes
- Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes (en)
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| skos:notation
| - RIV/00025798:_____/14:00000078!RIV15-GA0-00025798
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00025798:_____/14:00000078
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Lead, Copper, Mine tailings, Soil, Luvisol, Chernozem, Cu isotopes, Pb isotopes, Namibia (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Addressing environmental and health impacts of active and abandoned mines in Sub-Saharan Africa. Proceedings of the Closing Workshop of the IGCP/SIDA Projects 594 and 606,Prague, Czech Republic, May 26—28, 2014
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Kříbek, Bohdan
- Mihaljevič, Martin
- Penížek, Vít
- Chrastný, Vladislav
- Ettler, Vojtěch
- Vaněk, Aleš
- Knésl, Ilja
- Mapani, Benjamin
- Kamona, Frederick
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
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| https://schema.org/isbn
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