Comment on deconvolution profiles in sediment cores

Heavy metals profiles in sediment cores are discussed in terms of their source profiles, using a simple approach where the mixing is considered as a diffusive process. The results are compared with the deconvoluted profiles of 5 cores of Lake Michigan, USA, obtained by the Fourier transform techniqu...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 1991-11, Vol.60 (1-2), p.35-42
Main Authors: MELIERES, M.-A, POURCHET, M, PINGLOT, J.-F
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Freshwater
Geochronology
Isotope geochemistry. Geochronology
Mineralogy
Mineralogy: general, methodology, regional studies
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Summary:Heavy metals profiles in sediment cores are discussed in terms of their source profiles, using a simple approach where the mixing is considered as a diffusive process. The results are compared with the deconvoluted profiles of 5 cores of Lake Michigan, USA, obtained by the Fourier transform technique of Christensen and Osuna. Agreement is found for cases of negligible and fast mixing respectively. For intermediate mixing the physical conditions lead to a result different from that of Christensen and Osuna. This comparison highlights the value of combining the two approaches.
ISSN:0049-6979
1573-2932
DOI:10.1007/BF00293964