{"id":6743,"date":"2020-12-17T11:43:38","date_gmt":"2020-12-17T10:43:38","guid":{"rendered":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/?page_id=6743"},"modified":"2024-01-15T11:17:06","modified_gmt":"2024-01-15T10:17:06","slug":"ophelie-david-these","status":"publish","type":"page","link":"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/ophelie-david-these\/","title":{"rendered":"Oph\u00e9lie David (Th\u00e8se)"},"content":{"rendered":"
\n
\n\t

\"\"Oph\u00e9lie David
\nPhD student<\/span><\/h3>\n

University of West Brittany - Brest<\/p>\n

University of Southern Brittany - Tohannic Campus
\nYves Coppens Building<\/p>\n

ophelie.david@univ-ubs.fr
\nophelie.david@univ-brest.fr<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>

\n
\n\t

Reconstitution des pal\u00e9oenvironnements c\u00f4tiers bretons \u00e0 l\u2019Holoc\u00e8ne : interactions entre dynamiques s\u00e9dimentaires, climatiques et anthropiques<\/h3>\n<\/div>\n<\/div><\/div><\/div><\/div>
\n
\n\t

Abstract<\/span><\/h4>\n

Le littoral breton a connu de profondes mutations tout au long de l\u2019Holoc\u00e8ne (i.e., notre interglaciaire ayant d\u00e9but\u00e9 \u00e0 11 700 ans BP) sous l\u2019effet conjugu\u00e9 de la transgression marine post-glaciaire et des changements climatiques, auxquels se superposent l\u2019impact anthropique croissant depuis 7 000 ans BP, associ\u00e9 \u00e0 l\u2019arriv\u00e9e des premiers agro-pasteurs du N\u00e9olithique.<\/span><\/p>\n

L\u2019objectif de la th\u00e8se men\u00e9e \u00e9tait de mieux appr\u00e9hender ces changements et d\u2019ainsi \u00e9tablir un canevas historique des dynamiques pal\u00e9oenvironnementales ayant affect\u00e9 les c\u00f4tes bretonnes au cours de l\u2019Holoc\u00e8ne. Pour cela, des \u00e9tudes multiproxies, couplant des analyses s\u00e9dimentologiques, palynologiques (\u00e9tude des grains de pollen et des kystes de dinoflagell\u00e9) et micropal\u00e9ontologiques (\u00e9tude des foraminif\u00e8res benthiques), ont \u00e9t\u00e9 men\u00e9es sur des archives s\u00e9dimentaires pr\u00e9lev\u00e9es le long des c\u00f4tes nord-finist\u00e9rienne (Plouescat) et morbihannaise (B\u00e9tahon et baie de Quiberon). <\/p>\n

Ces donn\u00e9es ont ainsi permis de discuter le mod\u00e8le de remplissage s\u00e9dimentaire des syst\u00e8mes littoraux face \u00e0 la transgression marine ainsi que l\u2019implication des for\u00e7ages climatiques et anthropiques sur l\u2019\u00e9volution des pal\u00e9oenvironnements bretons, et ce, \u00e0 des r\u00e9solutions infra-mill\u00e9naires \u00e0 s\u00e9culaires et sur des \u00e9chelles spatiales macro-r\u00e9gionales \u00e0 locales.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div>

\n
\n\t

Supervisors<\/span><\/h4>\n

Evelyne Goubert
\nMuriel Vidal
\nAur\u00e9lie Penaud<\/span><\/p>\n

Keywords<\/span><\/h4>\n

\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

Reconstitution des pal\u00e9oenvironnements c\u00f4tiers bretons \u00e0 l\u2019Holoc\u00e8ne : interactions entre dynamiques s\u00e9dimentaires, climatiques et anthropiques<\/p>","protected":false},"author":19,"featured_media":6744,"parent":3951,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6743","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nOph\u00e9lie David (Th\u00e8se) - LGO - P\u00f4le UBS<\/title>\n<meta name=\"description\" content=\"Retrouvez ici la th\u00e8se de Kalil Traor\u00e9 sur l'architecture de couverture s\u00e9dimentaire et enregistrement des fluidations climatiques : Baie de St Brieuc\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.laboratoire-geosciences-ocean-ubs.fr\/en\/theses-post-docs\/ophelie-david-these\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oph\u00e9lie David (Th\u00e8se) - 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