High-resolution onshore–offshore morpho-bathymetric records of modern chalk and granitic shore platforms in NW France
Identifieur interne : 000112 ( France/Analysis ); précédent : 000111; suivant : 000113High-resolution onshore–offshore morpho-bathymetric records of modern chalk and granitic shore platforms in NW France
Auteurs : Anne Duperret [France] ; Céline Raimbault ; Bernard Le Gall [France] ; Christine Authemayou [France] ; Brigitte Van Vliet-Lanoë [France] ; Vincent Regard [France] ; Elsa Dromelet [Belgique] ; Sara Vandycke [Belgique]Source :
- Comptes Rendus Géoscience [ 1631-0713 ] ; 2015-07.
English descriptors
Abstract
Modern shore platforms developed on rocky coasts are key areas for understanding coastal erosion processes during the Holocene. This contribution offers a detailed picture of two contrasted shore-platform systems, based on new high-resolution shallow-water bathymetry, further coupled with aerial LiDAR topography. Merged land-sea digital elevation models were achieved on two distinct types of rocky coasts along the eastern English Channel in France (Picardy and Upper-Normandy: PUN) and in a NE Atlantic area (SW Brittany: SWB) in NW France. About the PUN case, submarine steps, identified as paleo-shorelines, parallel the actual coastline. Coastal erosive processes appear to be continuous and regular through time, since mid-Holocene at least. In SWB, there is a discrepancy between contemporary coastline orientation and a continuous step extending from inland to offshore, identified as a paleo-shoreline. This illustrates a polyphased and inherited shore platform edification, mainly controlled by tectonic processes.
Url:
DOI: 10.1016/j.crte.2015.06.005
Affiliations:
- Belgique, France
- Haute-Normandie, Région Bretagne, Région Normandie
- Brest, Le Havre
- Université de Bretagne Occidentale, Université du Havre, Université européenne de Bretagne
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000157
- to stream Hal, to step Curation: 000157
- to stream Hal, to step Checkpoint: 000050
- to stream Main, to step Merge: 000115
- to stream Main, to step Curation: 000115
- to stream Main, to step Exploration: 000115
- to stream France, to step Extraction: 000112
Links to Exploration step
Hal:insu-01185350Le document en format XML
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type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-302706" type="direct"><org type="institution" xml:id="struct-302706" status="VALID"><orgName>Institut d'écologie et environnement</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Brest</settlement><region type="region" nuts="2">Région Bretagne</region></placeName><orgName type="university">Université de Bretagne Occidentale</orgName><orgName type="institution" wicri:auto="newGroup">Université européenne de Bretagne</orgName></affiliation></author><author><name sortKey="Van Vliet Lanoe, Brigitte" sort="Van Vliet Lanoe, Brigitte" uniqKey="Van Vliet Lanoe B" first="Brigitte" last="Van Vliet-Lanoë">Brigitte Van Vliet-Lanoë</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-143309" status="VALID"><orgName>Domaines Océaniques</orgName><desc><address><addrLine>Technopôle Brest-Iroise, Place Copernic, 29280 Plouzané</addrLine><country key="FR"></country></address><ref type="url">http://www-sdt.univ-brest.fr/</ref></desc><listRelation><relation name="UMR6538" active="#struct-441569" type="direct"></relation><relation active="#struct-300045" type="direct"></relation><relation active="#struct-300314" type="direct"></relation><relation active="#struct-301907" type="direct"></relation><relation active="#struct-18663" type="direct"></relation><relation name="FR2195" active="#struct-441569" type="direct"></relation><relation active="#struct-302706" type="direct"></relation></listRelation><tutelles><tutelle name="UMR6538" active="#struct-441569" type="direct"><org 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Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-302706" type="direct"><org type="institution" xml:id="struct-302706" status="VALID"><orgName>Institut d'écologie et environnement</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Brest</settlement><region type="region" nuts="2">Région Bretagne</region></placeName><orgName type="university">Université de Bretagne Occidentale</orgName><orgName type="institution" wicri:auto="newGroup">Université européenne de Bretagne</orgName></affiliation></author><author><name sortKey="Regard, Vincent" sort="Regard, Vincent" uniqKey="Regard V" first="Vincent" last="Regard">Vincent Regard</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-151875" status="VALID"><orgName>Géosciences Environnement Toulouse</orgName><orgName type="acronym">GET</orgName><desc><address><addrLine>Observatoire Midi-Pyrénées 14 Avenue Edouard Belin 31400 Toulouse</addrLine><country key="FR"></country></address><ref type="url">http://wwwget.obs-mip.fr/</ref></desc><listRelation><relation active="#struct-217752" type="direct"></relation><relation active="#struct-300174" type="direct"></relation><relation name="UMR5563" active="#struct-441569" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-217752" type="direct"><org type="institution" xml:id="struct-217752" status="VALID"> <orgName>Université Paul Sabatier - Toulouse 3</orgName> <orgName type="acronym">UPS</orgName> <desc> <address> <addrLine>118 route de Narbonne - 31062 Toulouse</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.univ-tlse3.fr/</ref> </desc></org></tutelle><tutelle active="#struct-300174" type="direct"><org type="institution" xml:id="struct-300174" status="VALID"><orgName>Observatoire Midi-Pyrénées</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMR5563" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Dromelet, Elsa" sort="Dromelet, Elsa" uniqKey="Dromelet E" first="Elsa" last="Dromelet">Elsa Dromelet</name><affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-92969" status="VALID"><orgName>Université Libre de Bruxelles [Bruxelles]</orgName><orgName type="acronym">ULB</orgName><desc><address><addrLine>Avenue Franklin Roosevelt 50 - 1050 Bruxelles</addrLine><country key="BE"></country></address><ref type="url">http://www.ulb.ac.be</ref></desc></hal:affiliation><country>Belgique</country></affiliation></author><author><name sortKey="Vandycke, Sara" sort="Vandycke, Sara" uniqKey="Vandycke S" first="Sara" last="Vandycke">Sara Vandycke</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-208370" status="INCOMING"><orgName>Faculté Polytechnique</orgName><desc><address><country key="BE"></country></address></desc><listRelation><relation active="#struct-160918" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-160918" type="direct"><org type="institution" xml:id="struct-160918" status="VALID"><orgName>Université de Mons</orgName><orgName type="acronym">UMons</orgName><desc><address><addrLine>20, place du Parc, B7000 Mons</addrLine><country key="BE"></country></address><ref type="url">http://portail.umons.ac.be/FR/Pages/default.aspx</ref></desc></org></tutelle></tutelles></hal:affiliation><country>Belgique</country></affiliation></author></analytic><idno type="DOI">10.1016/j.crte.2015.06.005</idno><series><title level="j">Comptes Rendus Géoscience</title><idno type="ISSN">1631-0713</idno><imprint><date type="datePub">2015-07</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Bathymetry</term><term>Holocene</term><term>Land-sea DEM</term><term>Rocky coast</term><term>Shore platform</term><term>Shoreline</term><term>Tectonics</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Modern shore platforms developed on rocky coasts are key areas for understanding coastal erosion processes during the Holocene. This contribution offers a detailed picture of two contrasted shore-platform systems, based on new high-resolution shallow-water bathymetry, further coupled with aerial LiDAR topography. Merged land-sea digital elevation models were achieved on two distinct types of rocky coasts along the eastern English Channel in France (Picardy and Upper-Normandy: PUN) and in a NE Atlantic area (SW Brittany: SWB) in NW France. About the PUN case, submarine steps, identified as paleo-shorelines, parallel the actual coastline. Coastal erosive processes appear to be continuous and regular through time, since mid-Holocene at least. In SWB, there is a discrepancy between contemporary coastline orientation and a continuous step extending from inland to offshore, identified as a paleo-shoreline. This illustrates a polyphased and inherited shore platform edification, mainly controlled by tectonic processes.</div></front></TEI><affiliations><list><country><li>Belgique</li><li>France</li></country><region><li>Haute-Normandie</li><li>Région Bretagne</li><li>Région Normandie</li></region><settlement><li>Brest</li><li>Le Havre</li></settlement><orgName><li>Université de Bretagne Occidentale</li><li>Université du Havre</li><li>Université européenne de Bretagne</li></orgName></list><tree><noCountry><name sortKey="Raimbault, Celine" sort="Raimbault, Celine" uniqKey="Raimbault C" first="Céline" last="Raimbault">Céline Raimbault</name></noCountry><country name="France"><region name="Région Normandie"><name sortKey="Duperret, Anne" sort="Duperret, Anne" uniqKey="Duperret A" first="Anne" last="Duperret">Anne Duperret</name></region><name sortKey="Authemayou, Christine" sort="Authemayou, Christine" uniqKey="Authemayou C" first="Christine" last="Authemayou">Christine Authemayou</name><name sortKey="Le Gall, Bernard" sort="Le Gall, Bernard" uniqKey="Le Gall B" first="Bernard" last="Le Gall">Bernard Le Gall</name><name sortKey="Regard, Vincent" sort="Regard, Vincent" uniqKey="Regard V" first="Vincent" last="Regard">Vincent Regard</name><name sortKey="Van Vliet Lanoe, Brigitte" sort="Van Vliet Lanoe, Brigitte" uniqKey="Van Vliet Lanoe B" first="Brigitte" last="Van Vliet-Lanoë">Brigitte Van Vliet-Lanoë</name></country><country name="Belgique"><noRegion><name sortKey="Dromelet, Elsa" sort="Dromelet, Elsa" uniqKey="Dromelet E" first="Elsa" last="Dromelet">Elsa Dromelet</name></noRegion><name sortKey="Vandycke, Sara" sort="Vandycke, Sara" uniqKey="Vandycke S" first="Sara" last="Vandycke">Sara Vandycke</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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