ISSN:
1420-9055
Keywords:
Lake Constance
;
lake sediments
;
dating methods
;
heavy metal chronology
;
lead
;
zinc
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Sediments in Lake Constance have been dated by radiometric methods and lamination counting. Investigations into the concentrations of lead and zinc in the sediments were carried out to get detailed information about environmental history. Maximum concentrations were found at the beginning of the 1960's. The lead maximum contamination occurred 3 years before the zinc maximum and has an unidentified source. The use of coal, leaded gasoline or the remobilization within the sediment could be excluded to result in the lead maximum. The fluctuations in zinc contamination could be explained with increasing and decreasing pollution (industry, coal burning, building of sewage plants). The greatest fluctuations of both metals occur during periods of great change in the economic history of Germany.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00878394
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