{"id":11914,"date":"2026-05-01T18:57:54","date_gmt":"2026-05-01T18:57:54","guid":{"rendered":"https:\/\/deliry.com\/?p=11914"},"modified":"2026-05-01T19:08:19","modified_gmt":"2026-05-01T19:08:19","slug":"ambre-du-cretace-de-la-charente-maritime","status":"publish","type":"post","link":"https:\/\/deliry.com\/?p=11914","title":{"rendered":"Ambre du\u00a0Cr\u00e9tac\u00e9\u00a0de la\u00a0Charente-Maritime"},"content":{"rendered":"\n<p>Si on trouve des gisement d\u2019ambre du Cr\u00e9tac\u00e9 en quelques endroits de France (une cinquantaine de sites), c\u2019est en <a href=\"https:\/\/deliry.com\/?page_id=8657\" data-type=\"page\" data-id=\"8657\">Charente-Maritime<\/a> que se situent les localit\u00e9s les plus nombreuses : \u00eele d\u2019Aix, presqu\u2019\u00eele de Fouras, \u00eelot d\u2019\u00c9net (Pointe de la Fum\u00e9e), Fouras (Bois Vert), Tonnay-Charente (Les Renardi\u00e8res et Puy-Puy), Archingeay-les Nouilliers, Cadeuil. On trouve par ailleurs en Charente voisine la localit\u00e9 de Champniers (La Buzinie). Les gisements du d\u00e9partement de la Charente-Maritime datent de l\u2019Albien (terminal) et du C\u00e9nomanien (basal), soit environ 100 Ma. Il s\u2019agit de niveaux sableux avec des lits argileux allant du centim\u00e8tre au m\u00e8tre, ces derniers contenant les \u00e9chantillons d\u2019ambre. Ils sont de teinte jaune \u00e0 gris fonc\u00e9.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Perrichot2003.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"744\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Perrichot2003.jpg\" alt=\"\" class=\"wp-image-11919\" style=\"width:640px\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Perrichot2003.jpg 1024w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Perrichot2003-300x218.jpg 300w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Perrichot2003-768x558.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Carte g\u00e9ologique de la Charente-Maritime de Perrichot (2003)<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"596\" height=\"600\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre15052022.png\" alt=\"\" class=\"wp-image-11921\" style=\"width:400px\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre15052022.png 596w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre15052022-298x300.png 298w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre15052022-150x150.png 150w\" sizes=\"auto, (max-width: 596px) 100vw, 596px\" \/><figcaption class=\"wp-element-caption\">\u00c9chantillon d&rsquo;Ambre r\u00e9colt\u00e9 le 15 mai 2022 \u00e0 Archingeay<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Il s\u2019agit g\u00e9n\u00e9ralement d\u2019ambre opaque. Lacroix a \u00e9t\u00e9 le premier \u00e0 l\u2019\u00e9tudier en Charente-Maritime en 1910 (\u00eelot d\u2019\u00c9net). L\u2019objet \u00e9tait alors nomm\u00e9 R\u00e9tinite. Ses collections d\u00e9pos\u00e9es au MNHN ont \u00e9t\u00e9 de nouveau \u00e9tudi\u00e9es d\u00e8s 1963 par Chauffin et quelques successeurs. L\u2019opacit\u00e9 de la r\u00e9sine fossile demande des m\u00e9thodes d\u2019investigation adapt\u00e9es qui s\u2019apparentent \u00e0 de la radiographie : spectroscopie, microtomographie. Celles-ci ont r\u00e9v\u00e9l\u00e9 pour les ambres du Cr\u00e9tac\u00e9 fran\u00e7aise plus de 1000 Arthropodes diff\u00e9rents, des Algues, des Radioles d\u2019oursins ou encore de la peau de Reptiles, des poils de Mammif\u00e8res, des (proto) plumes.<\/p>\n\n\n\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;\"> <iframe style=\"width:70%;height:100%;position:absolute;left:0px;top:0px;overflow:hidden\" frameborder=\"0\" type=\"text\/html\" src=\"https:\/\/www.dailymotion.com\/embed\/video\/x6czbr\" allowfullscreen=\"\"> <\/iframe> <\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><a href=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/ColstratiArchingeau.png\"><img loading=\"lazy\" decoding=\"async\" width=\"218\" height=\"506\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/ColstratiArchingeau.png\" alt=\"\" class=\"wp-image-11922\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/ColstratiArchingeau.png 218w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/ColstratiArchingeau-129x300.png 129w\" sizes=\"auto, (max-width: 218px) 100vw, 218px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>A Archingeay ce sont pr\u00e8s de 100 kg d&rsquo;ambre qui ont pu \u00eatre r\u00e9colt\u00e9s et \u00e9tudi\u00e9s r\u00e9v\u00e9lant une faune riche et diversifi\u00e9e. Les autres sites de la Charente-Maritime n&rsquo;ont gu\u00e8re apport\u00e9 que quelques kg d&rsquo;ambre au total.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"293\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre1.png\" alt=\"\" class=\"wp-image-11923\" style=\"width:220px\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre1.png 400w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambre1-300x220.png 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n<p>Les d\u00e9p\u00f4ts comprennent des charbons ou lignites correspondant \u00e0 des mangroves de l&rsquo;\u00e9poque alternant avec des sables fluviaux-estuariens ou des argiles lagunaires. Le contexte est un milieu estuarien sous climat chaud et humide. L&rsquo;ambre est concentr\u00e9e dans les lentilles de lignite et sont sur la localit\u00e9 d&rsquo;Archingeay de trois type : jaune citron (1%, sans fossiles), brun-rouge (80%, non analysable) et miel (19%, fossilif\u00e8re). On y trouve \u00e0 41,5% des Dipt\u00e8res, 12,5% des Hym\u00e9nopt\u00e8res\u2026<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambrearchingeay.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"553\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambrearchingeay.jpg\" alt=\"\" class=\"wp-image-11924\" style=\"width:640px\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambrearchingeay.jpg 1024w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambrearchingeay-300x162.jpg 300w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/05\/Ambrearchingeay-768x415.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Echantillons r\u00e9colt\u00e9s \u00e0 Archingeay le 15 mai 2022<br><em>On trouve encore quelques pass\u00e9es charbonneuses dans des strates de sable, des petits fragments d\u2019anthracite tr\u00e8s dure ainsi que des boulettes argileuses quasi humides et qui sont tr\u00e8s mall\u00e9ables<\/em><br><sup>\u00a9\u00a9 byncsa &#8211; Cyrille Deliry &#8211; Histoires Naturelles<\/sup><\/figcaption><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#eeeeee\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li><strong>N\u00e9raudeau D. &amp; al. 2002<\/strong>\u00a0\u2013 Un nouveau gisement \u00e0 ambre insectif\u00e8re et \u00e0 v\u00e9g\u00e9taux (Albien terminal probable)\u00a0: Archingeay (Charente-Maritime, France). \u2013\u00a0<em>Geobios,<\/em>\u00a035 (2)\u00a0: 233-240.<\/li>\n\n\n\n<li><strong>Perrichot V. 2003<\/strong>\u00a0\u2013\u00a0<em>Environnements paraliques \u00e0 ambre et \u00e0 v\u00e9g\u00e9taux du Cr\u00e9tac\u00e9 nord-aquitain (Charentes, Sud-Ouest de la France).<\/em>\u00a0\u2013 Th\u00e8se Biologie, Univ. Rennes. \u2013\u00a0<a href=\"https:\/\/tel.archives-ouvertes.fr\/tel-00011639\/file\/Memoire_GS_Web.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">PDF LINK<\/a><\/li>\n<\/ul>\n\n\n\n<p>\u2192 <a href=\"https:\/\/www.ouest-paleo.net\/nos-articles\/d%C3%A9couvertes-et-gisements\/l-ambre-cr%C3%A9tac%C3%A9-des-charentes\/\" target=\"_blank\" rel=\"noreferrer noopener\">L\u2019ambre cr\u00e9tac\u00e9 des Charentes (Aur\u00e9lien Morhain)<\/a>\u00a0(Ouest-Pal\u00e9o) \u279a<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Si on trouve des gisement d\u2019ambre du Cr\u00e9tac\u00e9 en quelques endroits de France (une cinquantaine de sites), c\u2019est en Charente-Maritime que se situent les localit\u00e9s &hellip; <\/p>\n","protected":false},"author":1,"featured_media":11923,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[294,539,561],"tags":[],"class_list":["post-11914","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-charente-maritime","category-geodiversite","category-mineraux"],"_links":{"self":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/11914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11914"}],"version-history":[{"count":5,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/11914\/revisions"}],"predecessor-version":[{"id":11928,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/11914\/revisions\/11928"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/media\/11923"}],"wp:attachment":[{"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}