{"id":7089,"date":"2024-12-03T17:33:32","date_gmt":"2024-12-03T16:33:32","guid":{"rendered":"https:\/\/vallesalado.com\/sel-danana\/origine\/"},"modified":"2025-10-31T13:34:50","modified_gmt":"2025-10-31T12:34:50","slug":"origine","status":"publish","type":"page","link":"https:\/\/www.vallesalado.com\/fr\/sel-danana\/origine\/","title":{"rendered":"Origine"},"content":{"rendered":"\t\t
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Origine<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Valle Salado<\/a><\/span><\/span><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Pendant la p\u00e9riode le Trias, p\u00e9riode qui a commenc\u00e9 il y a environ 251 millions d’ann\u00e9es et s’est termin\u00e9e il y a environ 200 millions d’ann\u00e9es \u00e0 une \u00e9poque o\u00f9 tous les continents \u00e9taient unis formant le un seul continent appel\u00e9 Pangea, Salinas de A\u00f1ana a \u00e9t\u00e9 submerg\u00e9e sous un grand oc\u00e9an. L’\u00e9vaporation de ses eaux a provoqu\u00e9 le d\u00e9p\u00f4t de grandes couches d’\u00e9vaporites dans son fond qui, au fil du temps, ont \u00e9t\u00e9 recouvertes par d’autres strates. <\/p>

L’existence du sel \u00e0 A\u00f1ana s’explique par le ph\u00e9nom\u00e8ne g\u00e9ologique appel\u00e9 diapir. En g\u00e9n\u00e9ral, il consiste en la remont\u00e9e en surface terrestre de mat\u00e9riaux plus anciens en raison de sa plus faible densit\u00e9, de la m\u00eame mani\u00e8re qu’une bulle d’air immerg\u00e9e dans un liquide a un mouvement ascendant. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Ce processus particulier a d\u00e9but\u00e9 il y a 220 millions d’ann\u00e9es, lorsque les roches \u00e9vaporites du faci\u00e8s triasique du Keuper, situ\u00e9es \u00e0 environ 5 kilom\u00e8tres de profondeur ont commenc\u00e9 \u00e0 remonter \u00e0 la surface, tra\u00eenant avec elles les mat\u00e9riaux qui caract\u00e9risent le paysage salin: Carnioles, Ophites, calcaires. loams, argiles, etc. Ce processus est toujours actif.

L’eau de pluie qui tombe sur le diapir passe d’abord par les couches sup\u00e9rieures de la roche et ensuite par les couches de sel, refaisant surface sous forme de sources ou des remont\u00e9es d\u2019eau hyper salines. Les sources d’A\u00f1ana fournissent un d\u00e9bit moyen d’environ 2 litres par seconde, avec une concentration de sel d’environ 240 grammes par litre.

Le syst\u00e8me hydrologique li\u00e9 au diapir est compl\u00e9t\u00e9 par le lac Arreo, dont les eaux, en raison de leur emplacement dans un bassin ferm\u00e9 s’\u00e9vaporent, et elles sont \u00e9galement salines. Le lac comme les d\u00e9p\u00f4ts de sel contiennent tous deux des gisements comportant des informations pal\u00e9o environnementales et pal\u00e9o climatiques importantes, ainsi qu’une biodiversit\u00e9 typique des milieux salins. Pour cette raison et dans le but de les pr\u00e9server, ces deux espaces ont \u00e9t\u00e9 inclus dans la Liste des Zones Humides de RAMSAR d’importance internationale. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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CON LA GARANT\u00cdA DE:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Pendant la p\u00e9riode le Trias, p\u00e9riode qui a commenc\u00e9 il y a environ 251 millions d’ann\u00e9es et s’est termin\u00e9e il y a environ 200 millions d’ann\u00e9es \u00e0 une \u00e9poque o\u00f9 tous les continents \u00e9taient unis formant le un seul continent appel\u00e9 Pangea, Salinas de A\u00f1ana a \u00e9t\u00e9 submerg\u00e9e sous un grand oc\u00e9an. L’\u00e9vaporation de ses […]<\/p>\n","protected":false},"author":1,"featured_media":4148,"parent":6996,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-7089","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nOrigine - Valle Salado de A\u00f1ana<\/title>\n<meta name=\"description\" content=\"Origine des salines d'A\u00f1ana, compos\u00e9es d'\u00e9vaporites du Triasico, unies au ph\u00e9nom\u00e8ne du diapiro et riches en biodiversit\u00e9 saline.\" \/>\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.vallesalado.com\/fr\/sel-danana\/origine\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Origine - Valle Salado de A\u00f1ana\" \/>\n<meta property=\"og:description\" content=\"Origine des salines d'A\u00f1ana, compos\u00e9es d'\u00e9vaporites du Triasico, unies au ph\u00e9nom\u00e8ne du diapiro et riches en biodiversit\u00e9 saline.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.vallesalado.com\/fr\/sel-danana\/origine\/\" \/>\n<meta property=\"og:site_name\" content=\"Valle Salado de A\u00f1ana\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ValleSaladodeAnana\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-31T12:34:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.vallesalado.com\/wp-content\/uploads\/2024\/12\/valle-salado-miniatura.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@vallesalado\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.vallesalado.com\/fr\/sel-danana\/origine\/\",\"url\":\"https:\/\/www.vallesalado.com\/fr\/sel-danana\/origine\/\",\"name\":\"Origine - 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