{"id":3749,"date":"2018-07-08T08:56:20","date_gmt":"2018-07-08T08:56:20","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=3749"},"modified":"2018-07-08T09:07:22","modified_gmt":"2018-07-08T09:07:22","slug":"lagune-de-kara-bogaz","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/07\/08\/lagune-de-kara-bogaz\/","title":{"rendered":"Lagune de Kara-Bogaz"},"content":{"rendered":"

Dans la partie nord du Turkm\u00e9nistan, se d\u00e9veloppe la lagune de Kara-Bogaz (Kara-Bogaz-Gol, ce qui signifie en turkm\u00e8ne le \u00ab lac de la gorge noire \u00bb), la plus grande du monde. Elle mesure environ 150 x 100 km, soit une surface de 18400 km2<\/sup>, pour une profondeur tr\u00e8s faible, comprise g\u00e9n\u00e9ralement entre 4 et 7 m. Elle est caract\u00e9ris\u00e9e par sa salinit\u00e9 exceptionnelle (35 % = 350 \u2030, soit 350 grammes par litre\u00a0!), 10 fois sup\u00e9rieure \u00e0 celle de l\u2019eau de mer (3,5 %= 35 \u2030). Le sel y est d\u2019ailleurs exploit\u00e9 industriellement. Elle communique, sur une longueur de seulement 200 m\u00e8tres, avec la mer Caspienne. Celle-ci est paradoxalement relativement peu sal\u00e9e (12 \u2030) car aliment\u00e9e en eau douce par la Volga.<\/p>\n

\"\"<\/p>\n

Le volcanologue Jacques-Marie Bardintzeff, au bord de la lagune de Kara-Bogaz, Turkm\u00e9nistan (\u00a9 J.M. Bardintzeff, merci \u00e0 Sylvain Chermette).<\/p>\n

\"\"D\u00e9p\u00f4ts de sels au bord de la lagune de Kara-Bogaz, Turkm\u00e9nistan (\u00a9 J.M. Bardintzeff).<\/p>\n

<\/p>\n

En 1967, en classe de quatri\u00e8me, notre professeur de sciences-naturelles, Henri Vaissi\u00e8re (voir mon livre \u00ab\u00a0Volcanologue, Ed. L\u2019Harmattan), nous en avait parl\u00e9 \u00e0 propos de l\u2019\u00e9tude du gypse de Champ-sur-Drac pr\u00e8s de Grenoble (voir mon blog du 22\/8\/2017). Elle \u00e9tait situ\u00e9e en URSS \u00e0 l\u2019\u00e9poque. 51 ans plus tard, j\u2019ai pu v\u00e9rifier sur le terrain\u00a0! Et, bien s\u00fbr, j\u2019ai propos\u00e9 de porter un toast \u00e0 ce Monsieur.<\/p>\n

\"\"<\/p>\n

Accumulation de coquillages au bord de la lagune de Kara-Bogaz, Turkm\u00e9nistan (\u00a9 J.M. Bardintzeff).<\/p>\n","protected":false},"excerpt":{"rendered":"

Dans la partie nord du Turkm\u00e9nistan, se d\u00e9veloppe la lagune de Kara-Bogaz (Kara-Bogaz-Gol, ce qui signifie en turkm\u00e8ne le \u00ab lac de la gorge noire \u00bb), la plus grande du monde. Elle mesure environ 150 x 100 km, soit une surface de 18400 km2, pour une profondeur tr\u00e8s faible, comprise g\u00e9n\u00e9ralement entre 4 et 7 … Continuer la lecture de Lagune de Kara-Bogaz<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6,8],"tags":[21,1292,1293,1107,1294,1295,1042,1004,1296,13,1297],"class_list":["post-3749","post","type-post","status-publish","format-standard","hentry","category-actualites","category-voyages","tag-bardintzeff","tag-caspienne","tag-champ-sur-drac","tag-gypse","tag-kara-bogaz","tag-lagune","tag-sel","tag-turkmenistan","tag-vaissiere","tag-volcanologue","tag-volga"],"yoast_head":"\nLagune de Kara-Bogaz, par Jacques-Marie Bardintzeff<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2018\/07\/08\/lagune-de-kara-bogaz\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lagune de Kara-Bogaz, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Dans la partie nord du Turkm\u00e9nistan, se d\u00e9veloppe la lagune de Kara-Bogaz (Kara-Bogaz-Gol, ce qui signifie en turkm\u00e8ne le \u00ab lac de la gorge noire \u00bb), la plus grande du monde. 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