Radioisotopic evidence of perturbations of recent sedimentary record in lakes: a word of caution for climate studies
Identifieur interne : 000195 ( Istex/Curation ); précédent : 000194; suivant : 000196Radioisotopic 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
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Radioisotopic evidence of perturbations of recent sedimentary record in lakes: a word of caution for climate studies</title><author><name sortKey="Dominik, Janusz" sort="Dominik, Janusz" uniqKey="Dominik J" first="Janusz" last="Dominik">Janusz Dominik</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author><author><name sortKey="Loizeau, Jean Luc" sort="Loizeau, Jean Luc" uniqKey="Loizeau J" first="Jean-Luc" last="Loizeau">Jean-Luc Loizeau</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author><author><name sortKey="Span, Daniel" sort="Span, Daniel" uniqKey="Span D" first="Daniel" last="Span">Daniel Span</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:5B18C7B838487D5E60DDF7CDAC9EA9E0E979CAB5</idno><date when="1992" year="1992">1992</date><idno type="doi">10.1007/BF00193526</idno><idno type="url">https://api.istex.fr/document/5B18C7B838487D5E60DDF7CDAC9EA9E0E979CAB5/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000195</idno><idno type="wicri:Area/Istex/Curation">000195</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Radioisotopic evidence of perturbations of recent sedimentary record in lakes: a word of caution for climate studies</title><author><name sortKey="Dominik, Janusz" sort="Dominik, Janusz" uniqKey="Dominik J" first="Janusz" last="Dominik">Janusz Dominik</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author><author><name sortKey="Loizeau, Jean Luc" sort="Loizeau, Jean Luc" uniqKey="Loizeau J" first="Jean-Luc" last="Loizeau">Jean-Luc Loizeau</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author><author><name sortKey="Span, Daniel" sort="Span, Daniel" uniqKey="Span D" first="Daniel" last="Span">Daniel Span</name><affiliation wicri:level="1"><mods:affiliation>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix, Switzerland</mods:affiliation><country xml:lang="fr">Suisse</country><wicri:regionArea>Institut F-A Forel, Université de Genève, 10 route de Suisse, CH-1290, Versoix</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Climate Dynamics</title><title level="j" type="abbrev">Climate Dynamics</title><idno type="ISSN">0930-7575</idno><idno type="eISSN">1432-0894</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1992-01-01">1992-01-01</date><biblScope unit="volume">6</biblScope><biblScope unit="issue">3-4</biblScope><biblScope unit="page" from="145">145</biblScope><biblScope unit="page" to="152">152</biblScope></imprint><idno type="ISSN">0930-7575</idno></series><idno type="istex">5B18C7B838487D5E60DDF7CDAC9EA9E0E979CAB5</idno><idno type="DOI">10.1007/BF00193526</idno><idno type="ArticleID">Art4</idno><idno type="ArticleID">BF00193526</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0930-7575</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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