ISSN:
1573-5117
Keywords:
210Pb and 226Ra measurements
;
sediments
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Lead-210 and radium-226 measurements by direct gamma assay can now provide a record of changing concentrations in lake sediments sufficiently reliable and precise to form a suitable basis for age/depth and dry-sedimentation-rate calculations. There are additional benefits in terms of non destructive sample preparation and simultaneous assay for other environmentally significant gamma-emitting radioisotopes (e.g. 137Cs and 241Am). Results from L. Fleet, S. W. Scotland illustrate the value of this approach especially in lakes with disturbed catchments where variable input of supported 210Pb has occurred.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00026640
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