Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000078" target="_blank" >RIV/00025798:_____/14:00000078 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes

Popis výsledku v původním jazyce

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 ?65Cu values, the tailings materials (the major source of contamination in the area) had positive ?65Cu values. Whereas Luvisols were mostly characterized by an increase in Cu concentration with changing ?65Cu 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 mu

Název v anglickém jazyce

Tracing of copper and lead in soils near Kombat mine using stable Cu and Pb isotopes

Popis výsledku anglicky

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 ?65Cu values, the tailings materials (the major source of contamination in the area) had positive ?65Cu values. Whereas Luvisols were mostly characterized by an increase in Cu concentration with changing ?65Cu 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 mu

Druh

D - Stať ve sborníku

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP210%2F12%2F1413" target="_blank" >GAP210/12/1413: Vliv těžby a úpravy rud na životní prostředí v Namibii: Modelování migrace polutantů v půdách, rostlinách a podzemních vodách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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

ISBN

978-80-7075-858-8

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

89-91

Název nakladatele

Czech geological survey

Místo vydání

Prague

Místo konání akce

Praha

Datum konání akce

26. 5. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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