{"id":6176,"date":"2020-09-22T20:08:55","date_gmt":"2020-09-22T20:08:55","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/?p=6176"},"modified":"2020-09-22T20:14:13","modified_gmt":"2020-09-22T20:14:13","slug":"des-dykes-geants-au-cameroun","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/09\/22\/des-dykes-geants-au-cameroun\/","title":{"rendered":"Des dykes g\u00e9ants au Cameroun"},"content":{"rendered":"<p>Des dykes (filons d\u2019alimentation volcaniques) g\u00e9ants (jusqu\u2019\u00e0 30 m de largeur et 3 km de long, en plusieurs affleurements) sont d\u00e9crits dans la r\u00e9gion de Temt\u00e9 au nord Cameroun. Ils ont des compositions d\u2019and\u00e9site basaltique, de trachyand\u00e9site basaltique et de trachyand\u00e9site.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6179\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig2_.jpg.OK_-450x378.jpg\" alt=\"\" width=\"450\" height=\"378\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig2_.jpg.OK_-450x378.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig2_.jpg.OK_-768x645.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig2_.jpg.OK_.jpg 1013w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Un dyke g\u00e9ant dans la r\u00e9gion de Temt\u00e9 au Cameroun (in Mamat Mey <em>et al.<\/em>, 2020).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6181\" src=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig1_.jpg.OK_-450x307.jpg\" alt=\"\" width=\"450\" height=\"307\" srcset=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig1_.jpg.OK_-450x307.jpg 450w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig1_.jpg.OK_-768x524.jpg 768w, https:\/\/blogs.futura-sciences.com\/bardintzeff\/wp-content\/uploads\/sites\/3\/2020\/09\/Mamat_Mey_et_al.Fig1_.jpg.OK_.jpg 997w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/>Carte g\u00e9ologique simplifi\u00e9e du Cameroun (B) et cartographie des dykes de Temt\u00e9 (C) (in Mamat Mey <em>et al.<\/em>, 2020).<\/p>\n<p>Ils font l\u2019objet d\u2019une r\u00e9cente publication scientifique\u00a0dans la revue Acta Geochimica :<\/p>\n<p>Mey Atour M., Bardintzeff J.M., Fagny Mefire A., Nkouandou O.F., Tchameni R. et Dinamou A. (2020) &#8211; Petrology and geochemical framework of dolerites dykes of Temt\u00e9, North Cameroon, Central Africa.<\/p>\n<p>Pour lire l\u2019article :<\/p>\n<p><a href=\"https:\/\/rdcu.be\/b7tPP\">https:\/\/rdcu.be\/b7tPP<\/a><\/p>\n<p><a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11631-020-00432-4\">https:\/\/link.springer.com\/article\/10.1007\/s11631-020-00432-4<\/a><\/p>\n<p><!--more--><\/p>\n<p>D\u2019autres dykes ont \u00e9t\u00e9 d\u00e9crits en Afrique, au Cameroun, \u00e0 Hama Koussou (voir mon blog du 12\/10\/2019) : <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/10\/12\/filons-volcaniques-a-hama-koussou-cameroun\/#more-5077\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2019\/10\/12\/filons-volcaniques-a-hama-koussou-cameroun\/#more-5077<\/a><\/p>\n<p>et au Tchad \u00e0 Mongo (voir mon blog du 3\/6\/2017)\u00a0: <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/06\/03\/filons-volcaniques-tchad\/#more-2354\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2017\/06\/03\/filons-volcaniques-tchad\/#more-2354<\/a><\/p>\n<p>Une fois d\u00e9chauss\u00e9 par l\u2019\u00e9rosion, les dykes prennent des formes \u00e9tonnantes mimant de v\u00e9ritables murailles :<\/p>\n<p>Dans l\u2019H\u00e9rault (mon blog du 11\/6\/2015)\u00a0: <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/06\/11\/intrusion-volcanique-dyke\/#more-663\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/06\/11\/intrusion-volcanique-dyke\/#more-663<\/a><\/p>\n<p>Aux Canaries (mon blog du 4\/1\/2014)\u00a0: <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2014\/01\/04\/\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2014\/01\/04\/<\/a><\/p>\n<p>Au Cap-Vert (mon blog du 6\/6\/2015)\u00a0: <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/06\/06\/images-de-volcan-la-vallee-des-dykes\/#more-657\">https:\/\/blogs.futura-sciences.com\/bardintzeff\/2015\/06\/06\/images-de-volcan-la-vallee-des-dykes\/#more-657<\/a><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Des dykes (filons d\u2019alimentation volcaniques) g\u00e9ants (jusqu\u2019\u00e0 30 m de largeur et 3 km de long, en plusieurs affleurements) sont d\u00e9crits dans la r\u00e9gion de Temt\u00e9 au nord Cameroun. Ils ont des compositions d\u2019and\u00e9site basaltique, de trachyand\u00e9site basaltique et de trachyand\u00e9site. Un dyke g\u00e9ant dans la r\u00e9gion de Temt\u00e9 au Cameroun (in Mamat Mey et &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/bardintzeff\/2020\/09\/22\/des-dykes-geants-au-cameroun\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Des dykes g\u00e9ants au Cameroun<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/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":[2131,21,852,85,2132,180,854,855,2133,860,2134,2135,864],"class_list":["post-6176","post","type-post","status-publish","format-standard","hentry","category-actualites","category-voyages","tag-andesite","tag-bardintzeff","tag-basalte","tag-cameroun","tag-dinamou","tag-dyke","tag-fagny-mefire","tag-filon","tag-mey-atour","tag-nkouandou","tag-tchameni","tag-temte","tag-trachyandesite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Des dykes g\u00e9ants au Cameroun, 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\/2020\/09\/22\/des-dykes-geants-au-cameroun\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Des dykes g\u00e9ants au Cameroun, par Jacques-Marie Bardintzeff\" \/>\n<meta property=\"og:description\" content=\"Des dykes (filons d\u2019alimentation volcaniques) g\u00e9ants (jusqu\u2019\u00e0 30 m de largeur et 3 km de long, en plusieurs affleurements) sont d\u00e9crits dans la r\u00e9gion de Temt\u00e9 au nord Cameroun. Ils ont des compositions d\u2019and\u00e9site basaltique, de trachyand\u00e9site basaltique et de trachyand\u00e9site. 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