Record details

Title
    Composition of sediments in water reservoirs of the Ohře River and their contamination
Statement of responsibility
    Štastný M., Šrein V., Spanilá T., Sýkorová I., Bendl J., Vladimír Šrein
Other titles
    Sixteenth Conference on Clay Mineralogy and Petrology in Karlovy Vary (Czech Republic), August 27-31, 2000 (Variant.)
Author
    Bendl, Jiří, 1955-
    Spanilá, Tamara
    Sýkorová, Ivana, 1969-
    Šrein, Vladimír
    Šťastný, Martin
Language
    anglicky
Source title - serial
    Acta Universitatis Carolinae. Geologica
Vol./nr.
    Vol. 44, no. 2-4
Pages
    p. 149-155
Year
    2000
Notes
    1 obr.
    il.
    Obsahuje bibliografické odkazy
    Zkr. název ser.: Acta Univ. Carol., Geol.
Classfication no.
    552
    628.19
Conspectus category
    552
    556
Subject group
    hydrochemie
    kovy těžké
    kvartér podkrušnohorských pánví
    minerály jílové
    nádrž vodní
    prvky stopové
    sedimentace fluviální
Geographical name
    ČR-Čechy
    Nechranice (Chomutov, Chomutov)
    Ohře (povodí)
Keyword
    Composition
    Contamination
    Ohře
    Reservoirs
    River
    Sediments
    Water
Abstract (in english)
   The most serious contaminant of sediments in ater reservoirs of the Ohře River was found to be As followed by U, Ag, Cd, Hg, Be, Pb and Zn. Increased concentrations of these elements are probably connected with the history of mining in the Jáchymov area with affected the sediments throughout the river basin as a whole while, to a certain degree, reflecting a generally higher content of uranium in rocks of the Bohemian Massif. At the same time, Pb, Zn and Cd are typical anthropogenic contaminants, among which especially the high values of Cd and Pb are alarming. The bottom sediments in the Nechranice Water Reservoir on the Ohře River deposited after 1968 are, in general, of relatively homogeneous nature, however, with a recognizable influence of those brought in by the Lužický potok Creek.
   The main portion of the sediments consists of kaolinite, illite, clastic K-feldspar and plagioclase, accompanied by chlorite, smectite, hornblende and gypsum, while the proportion of organic lacustrine matter is low and not typical of paludal sediments
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    16. 9. 2008
Import date
    8. 8. 2012