Radioisotopic evidence of perturbations of recent sedimentary record in lakes: a word of caution for climate studies
Identifieur interne : 001551 ( Main/Exploration ); précédent : 001550; suivant : 001552Radioisotopic evidence of perturbations of recent sedimentary record in lakes: a word of caution for climate studies
Auteurs : Janusz Dominik [Suisse] ; Jean-Luc Loizeau [Suisse] ; Daniel Span [Suisse]Source :
- Climate Dynamics [ 0930-7575 ] ; 1992-01-01.
Abstract
Abstract: The rate of climatic change estimated from the gradient of signals recorded in lake sediments may be erroneous if post-depositional perturbations are overlooked. A smear out of a pulse signal, over a variable thickness of core section, due to physical or biological mixing, is a well known phenomena. Much less attention is paid to a possible overestimation of the rate of change when a part of record is missing due to an erosion event. In this paper we show a few examples of recent lake sediment perturbations and the resulting distortions in the time scale, as documented by short-lived radionuclides.
Url:
DOI: 10.1007/BF00193526
Affiliations:
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A smear out of a pulse signal, over a variable thickness of core section, due to physical or biological mixing, is a well known phenomena. Much less attention is paid to a possible overestimation of the rate of change when a part of record is missing due to an erosion event. In this paper we show a few examples of recent lake sediment perturbations and the resulting distortions in the time scale, as documented by short-lived radionuclides.</div></front></TEI><affiliations><list><country><li>Suisse</li></country><region><li>Canton de Genève</li></region><settlement><li>Genève</li></settlement><orgName><li>Université de Genève</li></orgName></list><tree><country name="Suisse"><region name="Canton de Genève"><name sortKey="Dominik, Janusz" sort="Dominik, Janusz" uniqKey="Dominik J" first="Janusz" last="Dominik">Janusz Dominik</name></region><name sortKey="Loizeau, Jean Luc" sort="Loizeau, Jean Luc" uniqKey="Loizeau J" first="Jean-Luc" last="Loizeau">Jean-Luc Loizeau</name><name sortKey="Span, Daniel" sort="Span, Daniel" uniqKey="Span D" first="Daniel" last="Span">Daniel Span</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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