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Media type:
E-Article
Title:
Vertical transport of heavy metals by settling particles in Lake Zurich
Contributor:
Sigg, Laura;
Sturm, Michael;
Kistler, David
Published:
Wiley, 1987
Published in:
Limnology and Oceanography, 32 (1987) 1, Seite 112-130
Language:
English
DOI:
10.4319/lo.1987.32.1.0112
ISSN:
1939-5590;
0024-3590
Origination:
Footnote:
Description:
Transport into sediments of the trace elements Cu, Zn, Pb, Cd, Cr, and Sr by settling particles was investigated in Lake Zurich; the concentrations of these elements in settling particles collected in sediment traps and in the water column were determined at different times of year. Correlations of trace element concentrations with the various main components of the settling particles (biological material, calcium carbonate, manganese and iron oxides, silicate minerals) and examination of seasonal variations both of these concentrations in particles and of particle fluxes to the sediments show that biological material is an important carrier phase (especially for Cu and Zn). Iron and manganese oxides also contribute to trace element transport; calcium carbonate is inefficient as a carrier material.