The loess and coversands of northern France and southern England
Identifieur interne : 001074 ( Istex/Corpus ); précédent : 001073; suivant : 001075The loess and coversands of northern France and southern England
Auteurs : Pierre Antoine ; John Catt ; Jean-Pierre Lautridou ; Jean SomméSource :
- Journal of Quaternary Science [ 0267-8179 ] ; 2003-03.
English descriptors
- KwdEn :
Abstract
Loess and coversands are widespread on either side of the English Channel. In southern England, loess is generally thin and discontinuous, but locally reaches thickness of about 4 m in east Kent. Coversands occur mainly in areas well north of the Channel, such as parts of East Anglia and the southern side of the Bristol Channel. Most of the loess and coversand deposits in southern England date from the Late Devensian cold stage (marine oxygen isotope stage (MOIS) 2), but there are also a few localised patches of older (mainly MOIS 6 and 12) loess, which are the dissected remnants of originally more extensive covers. In France loess is widespread and locally very thick (up to 12 m), especially in northern and northeastern France. In Normandy and in the Somme basin some long records indicate that accumulation began at the end of the Lower Pleistocene, at about 900 ka. Nevertheless the main accumulations of typical calcareous loess are related to the Upper Weichselian and Upper Saalian stages (MOIS 2 and end of MOIS 3 and MOIS 6). Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). Copyright © 2003 John Wiley & Sons, Ltd.
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DOI: 10.1002/jqs.750
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ISTEX:928E268595A7F8CBA1971D51C67E11D48347BAACLe document en format XML
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In southern England, loess is generally thin and discontinuous, but locally reaches thickness of about 4 m in east Kent. Coversands occur mainly in areas well north of the Channel, such as parts of East Anglia and the southern side of the Bristol Channel. Most of the loess and coversand deposits in southern England date from the Late Devensian cold stage (marine oxygen isotope stage (MOIS) 2), but there are also a few localised patches of older (mainly MOIS 6 and 12) loess, which are the dissected remnants of originally more extensive covers. In France loess is widespread and locally very thick (up to 12 m), especially in northern and northeastern France. In Normandy and in the Somme basin some long records indicate that accumulation began at the end of the Lower Pleistocene, at about 900 ka. Nevertheless the main accumulations of typical calcareous loess are related to the Upper Weichselian and Upper Saalian stages (MOIS 2 and end of MOIS 3 and MOIS 6). Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). 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Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). 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Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). Copyright © 2003 John Wiley & Sons, Ltd.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>English Channel</term></item><item><term>loess</term></item><item><term>coversands</term></item><item><term>sedimentology</term></item><item><term>stratigraphy</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>Research Article</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2001-10-04">Received</change><change when="2002-03-01">Registration</change><change when="2003-03">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/928E268595A7F8CBA1971D51C67E11D48347BAAC/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>John Wiley & Sons, Ltd.</publisherName><publisherLoc>Chichester, UK</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1099-1417</doi><issn type="print">0267-8179</issn><issn type="electronic">1099-1417</issn><idGroup><id type="product" value="JQS"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="JOURNAL OF QUATERNARY SCIENCE">Journal of Quaternary Science</title><title type="subtitle">Published for the Quaternary Research Association</title><title type="short">J. 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In southern England, loess is generally thin and discontinuous, but locally reaches thickness of about 4 m in east Kent. Coversands occur mainly in areas well north of the Channel, such as parts of East Anglia and the southern side of the Bristol Channel. Most of the loess and coversand deposits in southern England date from the Late Devensian cold stage (marine oxygen isotope stage (MOIS) 2), but there are also a few localised patches of older (mainly MOIS 6 and 12) loess, which are the dissected remnants of originally more extensive covers. In France loess is widespread and locally very thick (up to 12 m), especially in northern and northeastern France. In Normandy and in the Somme basin some long records indicate that accumulation began at the end of the Lower Pleistocene, at about 900 ka. Nevertheless the main accumulations of typical calcareous loess are related to the Upper Weichselian and Upper Saalian stages (MOIS 2 and end of MOIS 3 and MOIS 6). Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). Copyright © 2003 John Wiley & Sons, Ltd.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The loess and coversands of northern France and southern England</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>LOESS AND COVERSANDS, NORTHERN FRANCE AND SOUTHERN ENGLAND</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>The loess and coversands of northern France and southern England</title></titleInfo><name type="personal"><namePart type="given">Pierre</namePart><namePart type="family">Antoine</namePart><affiliation>UMR CNRS 8591, Laboratoire de Géographie Physique‐CNRS, 1 Place Aristide Briand, 92195 Meudon Cedex, France</affiliation><description>Correspondence: UMR CNRS 8591, Laboratoire de Géographie Physique‐CNRS, 1 Place Aristide Briand, 92195 Meudon Cedex, France.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">John</namePart><namePart type="family">Catt</namePart><affiliation>Geography Department, University College London, 26 Bedford Way, London WC1H OAP, England</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jean‐Pierre</namePart><namePart type="family">Lautridou</namePart><affiliation>‘Morphodynamique Continentale et Côtière’ (M2C), CNRS, 24, rue des Tilleuls, 14000 Caen, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jean</namePart><namePart type="family">Sommé</namePart><affiliation>UMR CNRS 8591, Laboratoire de Géographie Physique‐CNRS, 1 Place Aristide Briand, 92195 Meudon Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>John Wiley & Sons, Ltd.</publisher><place><placeTerm type="text">Chichester, UK</placeTerm></place><dateIssued encoding="w3cdtf">2003-03</dateIssued><dateCaptured encoding="w3cdtf">2001-10-04</dateCaptured><dateValid encoding="w3cdtf">2002-03-01</dateValid><copyrightDate encoding="w3cdtf">2003</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">5</extent><extent unit="references">73</extent></physicalDescription><abstract lang="en">Loess and coversands are widespread on either side of the English Channel. In southern England, loess is generally thin and discontinuous, but locally reaches thickness of about 4 m in east Kent. Coversands occur mainly in areas well north of the Channel, such as parts of East Anglia and the southern side of the Bristol Channel. Most of the loess and coversand deposits in southern England date from the Late Devensian cold stage (marine oxygen isotope stage (MOIS) 2), but there are also a few localised patches of older (mainly MOIS 6 and 12) loess, which are the dissected remnants of originally more extensive covers. In France loess is widespread and locally very thick (up to 12 m), especially in northern and northeastern France. In Normandy and in the Somme basin some long records indicate that accumulation began at the end of the Lower Pleistocene, at about 900 ka. Nevertheless the main accumulations of typical calcareous loess are related to the Upper Weichselian and Upper Saalian stages (MOIS 2 and end of MOIS 3 and MOIS 6). Indeed, before about 160–170 ka, loess deposition was generally restricted to special sediment traps such as fluvial and marine terraces exposed to the east or northeast. These older deposits are characterised by more sandy facies derived from local fluvial sources (mainly by northwest to north‐northwest winds). Coversands occur locally along the coast of the Mont Saint‐Michel bay, and over the northern part of the Seine estuary near Le Havre. The main differences in thickness and extent of the loess deposits between southern England and northern France are linked to their location in relation to the source areas (Channel and North Sea), to ice sheets, and to the main wind directions (northwest to north‐northwest in France and western England but northeast in eastern England). Copyright © 2003 John Wiley & Sons, Ltd.</abstract><subject lang="en"><genre>keywords</genre><topic>English Channel</topic><topic>loess</topic><topic>coversands</topic><topic>sedimentology</topic><topic>stratigraphy</topic></subject><relatedItem type="host"><titleInfo><title>Journal of Quaternary Science</title><subTitle>Published for the Quaternary Research Association</subTitle></titleInfo><titleInfo type="abbreviated"><title>J. Quaternary Sci.</title></titleInfo><name type="personal"><namePart type="given">P.L.</namePart><namePart type="family">Gibbard</namePart></name><name type="personal"><namePart type="given">J.P.</namePart><namePart type="family">Lautridou</namePart></name><genre type="journal">journal</genre><subject><genre>article-category</genre><topic>Research Article</topic></subject><identifier type="ISSN">0267-8179</identifier><identifier type="eISSN">1099-1417</identifier><identifier type="DOI">10.1002/(ISSN)1099-1417</identifier><identifier type="PublisherID">JQS</identifier><part><date>2003</date><detail type="title"><title>The Quaternary History of the English Channel</title></detail><detail type="volume"><caption>vol.</caption><number>18</number></detail><detail type="issue"><caption>no.</caption><number>3‐4</number></detail><extent unit="pages"><start>309</start><end>318</end><total>10</total></extent></part></relatedItem><identifier type="istex">928E268595A7F8CBA1971D51C67E11D48347BAAC</identifier><identifier type="DOI">10.1002/jqs.750</identifier><identifier type="ArticleID">JQS750</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2003 John Wiley & Sons, Ltd.</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>John Wiley & Sons, Ltd.</recordOrigin></recordInfo></mods></metadata><enrichments><json:item><type>multicat</type><uri>https://api.istex.fr/document/928E268595A7F8CBA1971D51C67E11D48347BAAC/enrichments/multicat</uri></json:item></enrichments><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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