{"id":5013,"date":"2018-01-11T14:20:11","date_gmt":"2018-01-11T13:20:11","guid":{"rendered":"https:\/\/www.yannarthusbertrandphoto.com\/?post_type=product&p=5013"},"modified":"2018-05-28T17:43:28","modified_gmt":"2018-05-28T15:43:28","slug":"lac-magadi","status":"publish","type":"product","link":"https:\/\/www.yannarthusbertrandphoto.com\/fr\/produit\/lac-magadi\/","title":{"rendered":"Lac Magadi"},"content":{"rendered":"

N\u00e9e d\u2019une d\u00e9chirure de la cro\u00fbte terrestre survenue il y a 30 millions d\u2019ann\u00e9es environ, la grande fracture du Rift s\u2019\u00e9tend sur pr\u00e8s de 7 000 km dans l\u2019est de l\u2019Afrique. Bord\u00e9e de hauts plateaux volcaniques, ce vaste foss\u00e9 d\u2019effondrement, succession de d\u00e9pressions (Rift Valleys) allant de la mer Rouge jusqu\u2019au Mozambique, abrite un chapelet de grands lacs (Turkana, Kivu, Tanganyika, Malawi…) et de lacs plus petits, comme le lac Magadi, le plus m\u00e9ridional du Kenya.<\/p>\n

Aliment\u00e9 par les eaux des pluies qui lessivent les pentes volcaniques avoisinantes et emportent les sels min\u00e9raux, mais surtout par des sources chaudes salines, ce lac contient une eau \u00e0 haute teneur en sel. Par endroits, sa surface est marbr\u00e9e de licks, d\u00e9p\u00f4ts salins cristallis\u00e9s m\u00eal\u00e9s \u00e0 l\u2019eau saum\u00e2tre. Bien qu\u2019inhospitalier, le lac n\u2019est toutefois pas exempt de vie : une seule esp\u00e8ce de poisson end\u00e9mique y vit dans des eaux alcalines (pH 10) dont la temp\u00e9rature d\u00e9passe 40\u00b0C.<\/p>\n

Des millions de flamants nains (Phoenicopterus minor) viennent se nourrir des microalgues, crevettes et autres crustac\u00e9s qui prolif\u00e8rent dans les eaux du lac. A noter que les cristaux de sesquicarbonate du lac consid\u00e9r\u00e9 comme les plus purs au monde sont exploit\u00e9s depuis un si\u00e8cle pour produire du carbonate de soude utilis\u00e9 par l\u2019industrie du verre et celle des d\u00e9tergents.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vol de flamants roses au-dessus de formations cristallines du lac Magadi, Kenya (1\u00b052\u2019 S \u2013 36\u00b017\u2019 E).<\/p>\n","protected":false},"featured_media":9161,"template":"","meta":{"inline_featured_image":false},"product_cat":[212],"product_tag":[],"yoast_head":"\nLac Magadi, Kenya - Yann Arthus-Bertrand Photographie<\/title>\n<meta name=\"description\" content=\"Bord\u00e9e de hauts plateaux volcaniques, ce vaste foss\u00e9 d\u2019effondrement, succession de d\u00e9pressions (Rift Valleys) allant de la mer Rouge jusqu\u2019au Mozambique, abrite un chapelet de grands lacs (Turkana, Kivu, Tanganyika, Malawi...) et de lacs plus petits, comme le lac Magadi, le plus m\u00e9ridional du Kenya.\" \/>\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.yannarthusbertrandphoto.com\/fr\/produit\/lac-magadi\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Lac Magadi, Kenya - 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