Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy
Identifieur interne : 001888 ( Istex/Corpus ); précédent : 001887; suivant : 001889Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy
Auteurs : Bernd Zolitschka ; Jörg F. W. NegendankSource :
- Quaternary Science Reviews [ 0277-3791 ] ; 1996.
Abstract
Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with Ar Ar dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions. Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.
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DOI: 10.1016/0277-3791(95)00022-4
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W." last="Negendank">Jörg F. W. Negendank</name><affiliation><mods:affiliation>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Quaternary Science Reviews</title><title level="j" type="abbrev">JQSR</title><idno type="ISSN">0277-3791</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1996">1996</date><biblScope unit="volume">15</biblScope><biblScope unit="issue">2–3</biblScope><biblScope unit="page" from="101">101</biblScope><biblScope unit="page" to="112">112</biblScope></imprint><idno type="ISSN">0277-3791</idno></series><idno type="istex">765833E9305E27F077BEB6BFC086DB37065854E7</idno><idno type="DOI">10.1016/0277-3791(95)00022-4</idno><idno type="PII">0277-3791(95)00022-4</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0277-3791</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with Ar Ar dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions. Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Bernd Zolitschka</name><affiliations><json:string>Fachbereich VI, Geologie, Universität Trier, D-54286 Trier, Germany</json:string><json:string>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</json:string></affiliations></json:item><json:item><name>Jörg F.W. Negendank</name><affiliations><json:string>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</json:string></affiliations></json:item></author><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with Ar Ar dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions. Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.</abstract><qualityIndicators><score>7.796</score><pdfVersion>1.2</pdfVersion><pdfPageSize>591 x 843 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>1621</abstractCharCount><pdfWordCount>5473</pdfWordCount><pdfCharCount>37732</pdfCharCount><pdfPageCount>12</pdfPageCount><abstractWordCount>233</abstractWordCount></qualityIndicators><title>Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</title><pii><json:string>0277-3791(95)00022-4</json:string></pii><refBibs><json:item><author><json:item><name>R.Y. Anderson</name></json:item><json:item><name>E.B. Nuhfer</name></json:item><json:item><name>W.E. 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Negendank</name></json:item></author><host><volume>1/49</volume><pages><last>69</last><first>64</first></pages><author></author><title>Terra Nostra</title></host><title>Sedimentological studies on lacustrine sediments from Lago Grande di Monticchio (Italy) as a source of palaeoclimatic proxy data for the last 76,000 years</title></json:item></refBibs><genre><json:string>research-article</json:string></genre><serie><volume>1</volume><pages><last>87</last><first>75</first></pages><language><json:string>unknown</json:string></language><title>Quaternary Proceedings</title></serie><host><volume>15</volume><pii><json:string>S0277-3791(00)X0001-7</json:string></pii><pages><last>112</last><first>101</first></pages><issn><json:string>0277-3791</json:string></issn><issue>2–3</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>Quaternary Science Reviews</title><publicationDate>1996</publicationDate></host><categories><wos><json:string>science</json:string><json:string>geosciences, multidisciplinary</json:string><json:string>geography, physical</json:string></wos><scienceMetrix><json:string>natural sciences</json:string><json:string>earth & environmental sciences</json:string><json:string>paleontology</json:string></scienceMetrix></categories><publicationDate>1996</publicationDate><copyrightDate>1996</copyrightDate><doi><json:string>10.1016/0277-3791(95)00022-4</json:string></doi><id>765833E9305E27F077BEB6BFC086DB37065854E7</id><score>0.5972127</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/765833E9305E27F077BEB6BFC086DB37065854E7/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/765833E9305E27F077BEB6BFC086DB37065854E7/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/765833E9305E27F077BEB6BFC086DB37065854E7/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a">Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>ELSEVIER</p></availability><date>1996</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a">Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</title><author xml:id="author-1"><persName><forename type="first">Bernd</forename><surname>Zolitschka</surname></persName><affiliation>Fachbereich VI, Geologie, Universität Trier, D-54286 Trier, Germany</affiliation><affiliation>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</affiliation></author><author xml:id="author-2"><persName><forename type="first">Jörg F.W.</forename><surname>Negendank</surname></persName><affiliation>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</affiliation></author></analytic><monogr><title level="j">Quaternary Science Reviews</title><title level="j" type="abbrev">JQSR</title><idno type="pISSN">0277-3791</idno><idno type="PII">S0277-3791(00)X0001-7</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1996"></date><biblScope unit="volume">15</biblScope><biblScope unit="issue">2–3</biblScope><biblScope unit="page" from="101">101</biblScope><biblScope unit="page" to="112">112</biblScope></imprint></monogr><idno type="istex">765833E9305E27F077BEB6BFC086DB37065854E7</idno><idno type="DOI">10.1016/0277-3791(95)00022-4</idno><idno type="PII">0277-3791(95)00022-4</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1996</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with Ar Ar dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions. Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.</p></abstract></profileDesc><revisionDesc><change when="1996">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/765833E9305E27F077BEB6BFC086DB37065854E7/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>JQSR</jid><aid>95000224</aid><ce:pii>0277-3791(95)00022-4</ce:pii><ce:doi>10.1016/0277-3791(95)00022-4</ce:doi><ce:copyright type="unknown" year="1996"></ce:copyright></item-info><head><ce:title>Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</ce:title><ce:author-group><ce:author><ce:given-name>Bernd</ce:given-name><ce:surname>Zolitschka</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>∗</ce:sup></ce:cross-ref><ce:cross-ref refid="AFF2"><ce:sup>†</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>Jörg F.W.</ce:given-name><ce:surname>Negendank</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>†</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Fachbereich VI, Geologie, Universität Trier, D-54286 Trier, Germany</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</ce:textfn></ce:affiliation></ce:author-group><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with <math altimg="si1.gif"><fr shape="sol"><nu><rm>Ar</rm></nu><de><rm>Ar</rm></de></fr></math> dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions.</ce:simple-para><ce:simple-para>Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Sedimentology, dating and palaeoclimatic interpretation of A 76.3 ka record from Lago Grande di Monticchio, southern Italy</title></titleInfo><name type="personal"><namePart type="given">Bernd</namePart><namePart type="family">Zolitschka</namePart><affiliation>Fachbereich VI, Geologie, Universität Trier, D-54286 Trier, Germany</affiliation><affiliation>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jörg F.W.</namePart><namePart type="family">Negendank</namePart><affiliation>GeoForschungsZentrum Postdam, Telegrafenberg A26, D-14473 Potsdam, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1996</dateIssued><copyrightDate encoding="w3cdtf">1996</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Detailed sedimentological and microstratigraphical investigations of lacustrine sediments from Lago Grande di Monticchio (southern Italy) provide a time scale based on rates of sedimentation obtained from annual laminations. Although not annually laminated throughout, a time scale covering the last 76.3 ka is available by interpolation of sedimentation rates. Results of this chronology agree with radiocarbon dates, and with Ar Ar dates on tephra layers from the same lacustrine sediment sequence. Occurrence of varves in combination with physical and geochemical properties are related to variations in the trophic state of the lake and to changing runoff, both controlled by palaeoclimatic conditions. Water depth was relatively shallow with dominating bioturbation and only few varves preserved for most of the Pleniglacial. A marked increase in precipitation and related runoff characterises the early Last Glacial Maximum when water depth reached a maximum and clastic varves were deposited. Subsequently water depth was shallower again. A drastic change towards nutrient rich conditions occurred at the Pleistocene/Holocene transition. During the Holocene organic varves were deposited. Two periods with higher organic productivity were recognised prior to the Last Glacial Maximum around 50 ka and 73 ka. These intervals are interpreted as the result of interstadial conditions. The oldes of the two events shows laminations comparable to those at the Glacial/Holocene transition. The periods with increased minerogenic influx may be characterised as stadial conditions, lasting from 14–40 ka and from 50–73 ka.</abstract><relatedItem type="host"><titleInfo><title>Quaternary Science Reviews</title></titleInfo><titleInfo type="abbreviated"><title>JQSR</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">1996</dateIssued></originInfo><identifier type="ISSN">0277-3791</identifier><identifier type="PII">S0277-3791(00)X0001-7</identifier><part><date>1996</date><detail type="volume"><number>15</number><caption>vol.</caption></detail><detail type="issue"><number>2–3</number><caption>no.</caption></detail><extent unit="issue pages"><start>99</start><end>245</end></extent><extent unit="pages"><start>101</start><end>112</end></extent></part></relatedItem><identifier type="istex">765833E9305E27F077BEB6BFC086DB37065854E7</identifier><identifier type="DOI">10.1016/0277-3791(95)00022-4</identifier><identifier type="PII">0277-3791(95)00022-4</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata></istex></record>Pour manipuler ce document sous Unix (Dilib)
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