{"id":10890,"date":"2026-04-04T03:44:23","date_gmt":"2026-04-04T03:44:23","guid":{"rendered":"https:\/\/deliry.com\/?p=10890"},"modified":"2026-04-04T03:44:39","modified_gmt":"2026-04-04T03:44:39","slug":"petrologie-etude-des-roches","status":"publish","type":"post","link":"https:\/\/deliry.com\/?p=10890","title":{"rendered":"P\u00e9trologie : \u00e9tude des roches"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><a href=\"https:\/\/deliry.com\/?page_id=9946\" data-type=\"page\" data-id=\"9946\">G\u00e9odiversit\u00e9<\/a><\/p>\n<\/blockquote>\n\n\n\n<p>L&rsquo;\u00e9tude des roches se nomme la P\u00e9trologie ou P\u00e9trographie.<\/p>\n\n\n\n<p>Les Roches sont des mat\u00e9riaux inertes, durs et coh\u00e9rents, parfois plastiques comme les Argiles, meubles comme les Sables, voire liquides ou gazeux comme le P\u00e9trole ou le Gaz naturel. Ce sont les mat\u00e9riaux constitutifs de l&rsquo;\u00c9corce terrestre. On distingue en premier chef les roches exog\u00e8nes qui se forment et se d\u00e9posent \u00e0 la surface de la Terre et les roches endog\u00e8nes qui sont form\u00e9es ou transform\u00e9es en profondeur sous des conditions locales de pression et de temp\u00e9rature particuli\u00e8res. Ces derni\u00e8res sont soumises \u00e0 des ph\u00e9nom\u00e8nes de cristallisation et pr\u00e9sentent des Min\u00e9raux visibles ou non (Microcristaux). La classification des Roches est \u00e9tudi\u00e9e par la p\u00e9trographie. On distingue parmi les roches exog\u00e8nes, les Roches s\u00e9dimentaires et parmi les roches endog\u00e8nes les Roches magmatiques (Roches volcaniques ou Roches cristallines) et les Roches m\u00e9tamorphiques.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/04\/Graphroches.png\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"393\" src=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/04\/Graphroches.png\" alt=\"\" class=\"wp-image-10891\" srcset=\"https:\/\/deliry.com\/wp-content\/uploads\/2026\/04\/Graphroches.png 500w, https:\/\/deliry.com\/wp-content\/uploads\/2026\/04\/Graphroches-300x236.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"has-text-align-center\">Toute roche (s\u00e9dimentaire, magmatique, m\u00e9tamorphique) par \u00e9rosion, transport et consolidation (diag\u00e9n\u00e8se)<br>est susceptible de donner une roche s\u00e9dimentaire (1).<br>(2) Fusion &#8211; (3) Pression, temp\u00e9rature &#8211; (4) Refroidissement<\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u00e9odiversit\u00e9 L&rsquo;\u00e9tude des roches se nomme la P\u00e9trologie ou P\u00e9trographie. Les Roches sont des mat\u00e9riaux inertes, durs et coh\u00e9rents, parfois plastiques comme les Argiles, meubles &hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[539,548],"tags":[],"class_list":["post-10890","post","type-post","status-publish","format-standard","hentry","category-geodiversite","category-roches"],"_links":{"self":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/10890","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10890"}],"version-history":[{"count":1,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/10890\/revisions"}],"predecessor-version":[{"id":10892,"href":"https:\/\/deliry.com\/index.php?rest_route=\/wp\/v2\/posts\/10890\/revisions\/10892"}],"wp:attachment":[{"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10890"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10890"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deliry.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10890"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}