{"id":462,"date":"2016-01-20T23:03:43","date_gmt":"2016-01-20T23:03:43","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=462"},"modified":"2016-01-20T23:03:43","modified_gmt":"2016-01-20T23:03:43","slug":"dune-de-mars","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/","title":{"rendered":"Dune de Mars"},"content":{"rendered":"<p><a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg\"  rel=\"lightbox[462] attachment wp-att-466\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg\" alt=\"Bagnold dune good res\" width=\"1600\" height=\"1200\" class=\"aligncenter size-full wp-image-466\" srcset=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg 1600w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res-768x576.jpg 768w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/a><br \/>\nLe rover Curiosity a atteint fin d\u00e9cembre une rang\u00e9e de dunes de sable noir\u2014vraisemblablement faites de grains de basalte\u2014lui barrant le passage sur la route du mont Sharp (\u00e0 l&#8217;arri\u00e8re plan). Le robot passe son mois de janvier \u00e0 \u00e9tudier de pr\u00e8s l&#8217;une de ces &#8220;Bagnold&#8221; dunes, haute de quatre m\u00e8tres, dont on estime qu&#8217;elle progresse d&#8217;un m\u00e8tre par an au gr\u00e9 du vent. Cet emplacement est l&#8217;un de ceux ou le cordon de dunes est le plus \u00e9troit et discontinu, ce qui permettra \u00e0 Curiosity de franchir l&#8217;obstacle et d&#8217;atteindre des strates min\u00e9rales tr\u00e8s int\u00e9ressantes \u00e0 la base du mont Sharp.<\/p>\n<p>Ci-dessous, la carte du chemin parcouru par Curiosity jusqu&#8217;au passage dans les dunes.<br \/>\n<a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Curiosity-traverse-Dunes.jpg\"  rel=\"lightbox[462] attachment wp-att-467\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Curiosity-traverse-Dunes.jpg\" alt=\"Curiosity traverse Dunes\" width=\"1024\" height=\"791\" class=\"aligncenter size-full wp-image-467\" srcset=\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Curiosity-traverse-Dunes.jpg 1024w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Curiosity-traverse-Dunes-450x348.jpg 450w, https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Curiosity-traverse-Dunes-768x593.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/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>Le rover Curiosity a atteint fin d\u00e9cembre une rang\u00e9e de dunes de sable noir\u2014vraisemblablement faites de grains de basalte\u2014lui barrant le passage sur la route du mont Sharp (\u00e0 l&#8217;arri\u00e8re plan). Le robot passe son mois de janvier \u00e0 \u00e9tudier de pr\u00e8s l&#8217;une de ces &#8220;Bagnold&#8221; dunes, haute de quatre m\u00e8tres, dont on estime qu&#8217;elle &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Dune de Mars<\/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":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[8],"tags":[],"class_list":["post-462","post","type-post","status-publish","format-standard","hentry","category-image-de-la-semaine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dune de Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/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\/frankel\/2016\/01\/20\/dune-de-mars\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Charles Frankel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/\",\"name\":\"Dune de Mars - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg\",\"datePublished\":\"2016-01-20T23:03:43+00:00\",\"dateModified\":\"2016-01-20T23:03:43+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2016\/01\/20\/dune-de-mars\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2016\/01\/Bagnold-dune-good-res.jpg\",\"width\":1600,\"height\":1200},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/\",\"name\":\"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"description\":\"La science ? 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