Tracing the metal dynamics in semi-arid soils near mine tailings using stable Cu and Pb isotopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F19%3A00000119" target="_blank" >RIV/00025798:_____/19:00000119 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/19:79155 RIV/60460709:41330/19:79155 RIV/00216208:11310/19:10397022 RIV/61989592:15310/19:73595561

Výsledek na webu

<a href="https://doi.org/10.1016/j.chemgeo.2019.03.026" target="_blank" >https://doi.org/10.1016/j.chemgeo.2019.03.026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemgeo.2019.03.026" target="_blank" >10.1016/j.chemgeo.2019.03.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tracing the metal dynamics in semi-arid soils near mine tailings using stable Cu and Pb isotopes

Popis výsledku v původním jazyce

The dynamics of Cu and Pb were studied in eight soil profiles (Luvisols, Chernozems), located at various distancesfrom the tailing dams near a closed Cu-Pb-(Zn)-Ag mine at Kombat (Namibia) by a combination of isotopeand elemental studies, leaching techniques and speciation modelling. Tailings, soils and bedrocks were analyzedfor the bulk Cu and Pb concentrations, for their chemical forms using the sequential extraction procedure and forthe isotope compositions of Cu (delta65Cu) and Pb (206Pb/207Pb, 208Pb/206Pb).The elemental and isotopic patterns of both contaminated and uncontaminated soil types reflect not only thedistance from the tailing dam but also pedogenetic processes in the profiles and geochemical behaviour of bothcontaminants. The copper elemental and isotope patterns reflect the formation of more mobile species in thesurface environment and movement of solutions and colloids and precipitation onto secondary minerals inLuvisols. Plant uptake of lighter isotopes in Chernozems can influence the Cu isotope patterns in these soil types.The limited movement of colloids and higher sorption capacity of Chernozems is manifested in the isotopecompositions of Cu and Pb in their profiles.

Název v anglickém jazyce

Tracing the metal dynamics in semi-arid soils near mine tailings using stable Cu and Pb isotopes

Popis výsledku anglicky

The dynamics of Cu and Pb were studied in eight soil profiles (Luvisols, Chernozems), located at various distancesfrom the tailing dams near a closed Cu-Pb-(Zn)-Ag mine at Kombat (Namibia) by a combination of isotopeand elemental studies, leaching techniques and speciation modelling. Tailings, soils and bedrocks were analyzedfor the bulk Cu and Pb concentrations, for their chemical forms using the sequential extraction procedure and forthe isotope compositions of Cu (delta65Cu) and Pb (206Pb/207Pb, 208Pb/206Pb).The elemental and isotopic patterns of both contaminated and uncontaminated soil types reflect not only thedistance from the tailing dam but also pedogenetic processes in the profiles and geochemical behaviour of bothcontaminants. The copper elemental and isotope patterns reflect the formation of more mobile species in thesurface environment and movement of solutions and colloids and precipitation onto secondary minerals inLuvisols. Plant uptake of lighter isotopes in Chernozems can influence the Cu isotope patterns in these soil types.The limited movement of colloids and higher sorption capacity of Chernozems is manifested in the isotopecompositions of Cu and Pb in their profiles.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA16-13142S" target="_blank" >GA16-13142S: Těžba a zpracování Cu, Pb, Zn a Co rud v subsaharské Africe – přírodní geochemická laboratoř pro studium chování polutantů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Chemical Geology

ISSN

0009-2541

e-ISSN

—

Svazek periodika

515

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

61-76

Kód UT WoS článku

000471604400006

EID výsledku v databázi Scopus

2-s2.0-85064177908