{"id":1137,"date":"2023-05-07T13:50:14","date_gmt":"2023-05-07T11:50:14","guid":{"rendered":"https:\/\/asga.dz\/?p=1137"},"modified":"2023-05-07T13:50:14","modified_gmt":"2023-05-07T11:50:14","slug":"publication-dun-ouvrage-sur-les-geosites-en-algerie","status":"publish","type":"post","link":"https:\/\/asga.dz\/index.php\/publication-dun-ouvrage-sur-les-geosites-en-algerie\/","title":{"rendered":"Publication d\u2019un ouvrage sur les g\u00e9osites en Alg\u00e9rie"},"content":{"rendered":"<p>En Alg\u00e9rie, les sites g\u00e9ologiques exceptionnels, parfois uniques, t\u00e9\u00acmoignent chacun \u00e0 sa mani\u00e8re d\u2019une page de l\u2019Histoire de la Terre.<\/p>\n<p>Dans cet ouvrage, d\u00e9di\u00e9 \u00e0 ce Patrimoine, l\u2019image que nous privil\u00e9\u00acgions est accompagn\u00e9e d\u2019un texte simple accessible au non g\u00e9ologue.<\/p>\n<p>Les sites pr\u00e9sent\u00e9s ont \u00e9t\u00e9s g\u00e9n\u00e9r\u00e9s par des \u00e9v\u00e8nements instantan\u00e9s. C\u2019est le cas des crat\u00e8res d\u2019impact de m\u00e9t\u00e9orites (Talemzane pr\u00e8s de Laghouat, Tin Bider dans le Tinrhert, ou Ouarkziz \u00e0 Tindouf), des troncs d\u2019arbres p\u00e9trifi\u00e9s des pal\u00e9o-savanes du Cr\u00e9tac\u00e9 inf\u00e9rieur (In Salah, Tidikelt) ou des d\u00e9p\u00f4ts de tsunamis sur la c\u00f4te est alg\u00e9roise (Kouali, Tipaza).<\/p>\n<p>Le temps est un artiste. Il fa\u00e7onne, conjuguant \u00e0 tous les temps, les formations g\u00e9ologiques dans une activit\u00e9 permanente. Ses oeuvres sont uniques : Gours de Br\u00e9zina dans l\u2019Atlas saharien, le diapir de Kheng El Maleh \u00e0 Sidi Tifour (Laghouat), en particulier.<\/p>\n<p>D\u2019autres sites nous renvoient aux paysages et temps de l\u2019autrefois.<\/p>\n<p>Au D\u00e9vonien, il y a 400 millions d\u2019ann\u00e9es, le Sahara alg\u00e9rien \u00e9tait enti\u00e8rement recouvert par la mer sous un climat temp\u00e9r\u00e9. La faune y associait des orthoc\u00e8res g\u00e9ants, des coraux et des trilobites. La fossilisation de cet instant, \u00e0 B\u00e9ni Abb\u00e8s (cha\u00eene d\u2019Ougarta), est une barre calcaire \u00e0 orthoc\u00e8res g\u00e9ants \u00ab La Muraille de Chine \u00bb dans le langage des p\u00e9troliers.<\/p>\n<p>Au Cr\u00e9tac\u00e9, les Dinosaures marchaient dans la r\u00e9gion d\u2019El Bayadh. Plus de 350 empreintes de pas sont inventori\u00e9es. Nous en pr\u00e9sentons quelques unes.<\/p>\n<p>Tous ces sites sont \u00e0 d\u00e9couvrir mais surtout \u00e0 prot\u00e9ger de l\u2019anthro\u00acpisme.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En Alg\u00e9rie, les sites g\u00e9ologiques exceptionnels, parfois uniques, t\u00e9\u00acmoignent chacun  [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1137","post","type-post","status-publish","format-standard","hentry","category-non-classifiee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Publication d\u2019un ouvrage sur les g\u00e9osites en Alg\u00e9rie - ASGA<\/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:\/\/asga.dz\/index.php\/publication-dun-ouvrage-sur-les-geosites-en-algerie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Publication d\u2019un ouvrage sur les g\u00e9osites en Alg\u00e9rie - 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