Behaviour of Cr in runoff from two catchments underlain by felsic bedrock
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F20%3A00000195" target="_blank" >RIV/00025798:_____/20:00000195 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.tandfonline.com/doi/full/10.1080/02626667.2020.1836373" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/02626667.2020.1836373</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/02626667.2020.1836373" target="_blank" >10.1080/02626667.2020.1836373</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Behaviour of Cr in runoff from two catchments underlain by felsic bedrock
Popis výsledku v původním jazyce
Chromium isotope and chemical compositions in runoff from two felsic rock catchments, the Lysina (LYS; Czech Republic) and the Neglinka (NEG; northwest Russia), were studied. Three types of water were identified: Na-Ca-SO4 type for the LYS, Mg-Ca-Cl-HCO3 type for the NEG downstream, and Mg-Ca-Cl to Mg-Ca-HCO3 type for the NEG upstream. The Cr(III) liberated during soil/bedrock weathering oxidized to Cr(VI), which was the main dissolved Cr species in both catchments. Variations in d53Cr values for LYS runoff (–0.07per mille to +0.37per mille) reflected a sole Cr source, seasonality of weathering and hydrologically controlled leaching/export processes. In the NEG catchment, back-reduction of Cr(VI) to Cr(III) during riverine transport resulted in a decrease in Cr concentrations (to 10-30percent) and in an increase of d53Cr values (+0.09 to +0.42per mille for the upstream to +0.72 to +1.73per mille for the downstream). Groundwater discharge could have influenced the chemical composition of the downstream NEG runoff to some extent.
Název v anglickém jazyce
Behaviour of Cr in runoff from two catchments underlain by felsic bedrock
Popis výsledku anglicky
Chromium isotope and chemical compositions in runoff from two felsic rock catchments, the Lysina (LYS; Czech Republic) and the Neglinka (NEG; northwest Russia), were studied. Three types of water were identified: Na-Ca-SO4 type for the LYS, Mg-Ca-Cl-HCO3 type for the NEG downstream, and Mg-Ca-Cl to Mg-Ca-HCO3 type for the NEG upstream. The Cr(III) liberated during soil/bedrock weathering oxidized to Cr(VI), which was the main dissolved Cr species in both catchments. Variations in d53Cr values for LYS runoff (–0.07per mille to +0.37per mille) reflected a sole Cr source, seasonality of weathering and hydrologically controlled leaching/export processes. In the NEG catchment, back-reduction of Cr(VI) to Cr(III) during riverine transport resulted in a decrease in Cr concentrations (to 10-30percent) and in an increase of d53Cr values (+0.09 to +0.42per mille for the upstream to +0.72 to +1.73per mille for the downstream). Groundwater discharge could have influenced the chemical composition of the downstream NEG runoff to some extent.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Hydrological sciences journal
ISSN
0262-6667
e-ISSN
—
Svazek periodika
65
Číslo periodika v rámci svazku
16
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
15
Strana od-do
2765–2782
Kód UT WoS článku
000590348000001
EID výsledku v databázi Scopus
2-s2.0-85096328262