Podrobnosti záznamu

Název
    Lithogenic thallium behavior in soils with different land use
Autor
    Chrastný, Vladislav
    Drahota, Petr
    Grygar, Tomáš
    Komárek, Michael
    Mihaljevič, Martin
    Vaněk, Aleš
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of geochemical exploration
Svazek/č.
    Roč. 102, č. 1
Strany
    6
Rok
    2009
Výraz tezauru
    forest
    grassland
    Mn oxide
    speciation
    thallium
Klíčové slovo
    Behavior
    Different
    Land
    Lithogenic
    Soils
    Thallium
    Use
Abstrakt (anglicky)
   In order to evaluate the effect of different land use on lithogenic Tl geochemistry, two forest and grassland soils developed on an identical Tl-rich substrate were examined. The modified BCR sequential extraction combined with X-ray diffraction analysis (XRD) and voltammetry of microparticles (VMP) were performed for a detailed insight on lithogenic Tl speciation and availability in both contrasting soils. It was revealed that soil forming processes like bioturbation and probably dust deposition may influence the increased input of lithogenic Tl into the forest floor. Thallium was predominantly bound within the residual fraction (up to 95%) corresponding to primary silicates (mainly orthoclase and muscovite) and probably secondary illite. The highest portion (~ 5%) of ?labile? Tl was found in the organic horizons of the forest soil. Thallium adsorption was dominated by an identified non-cry
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012