{"id":598,"date":"2020-02-21T18:42:06","date_gmt":"2020-02-21T17:42:06","guid":{"rendered":"http:\/\/sentiernaturemontmelas.fr\/?p=598"},"modified":"2020-02-24T10:41:37","modified_gmt":"2020-02-24T09:41:37","slug":"la-geologie-seance-4","status":"publish","type":"post","link":"https:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/","title":{"rendered":"La G\u00e9ologie, s\u00e9ance 4"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1-1024x768.jpg\" alt=\"\" class=\"wp-image-611\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190919-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure>\n\n\n\n<p>Mercredi 12 f\u00e9vrier, Alexandre nous a expliqu\u00e9 l\u2019histoire de\nla formation des pierres. <\/p>\n\n\n\n<p>Nous avons fait une exp\u00e9rience avec du sable et de l\u2019eau. &nbsp;Alexandre a pris une caisse o\u00f9 dedans, il a\nmis un seau de sable pour faire en sorte que ce soit une montagne. Puis, il a\npris un arrosoir et il a vers\u00e9 l\u2019eau dans la caisse. Au bout d\u2019un moment, la\nmontagne a commenc\u00e9 \u00e0 disparaitre. Il nous a expliqu\u00e9 que c\u2019\u00e9tait\nl\u2019\u00e9rosion&nbsp;: &nbsp;la pluie et le vent\npendant des millions d\u2019ann\u00e9es avaient grignot\u00e9 la montagne. Les poussi\u00e8res de\nmontagne &nbsp;arrivent ensuite dans la mer.\nPetit \u00e0 petit, elles se d\u00e9posent au fond des mers. Au fil des ann\u00e9es, sous le\npoids, une grande couche de s\u00e9diments se d\u00e9posent. Les s\u00e9diments de dessous\nsont tass\u00e9s par ceux de dessus et se durcissent et forment les roches\ns\u00e9dimentaires. Les pierres s\u00e9dimentaires se sont donc cr\u00e9\u00e9es au fond des mers. <\/p>\n\n\n\n<p>Ensuite, Alexandre nous a expliqu\u00e9 comment s\u2019est form\u00e9 le granite. \u00a0Le granite est une roche plutonique (elle s\u2019est form\u00e9e sous terre). A un moment, \u00a0lorsque deux plaques se sont rencontr\u00e9s, il y a eu la formation d\u2019une grande chaine de montagne. Plus tard, du magma aest remont\u00e9 lentement \u00e0 la surface. Mais il a refroidi avant de d\u2019atteindre la surface, donc la lave a refroidi sous terre. Cette roche s\u2019appelle le granite. Puis gr\u00e2ce \u00e0 l\u2019\u00e9rosion, la montagne a disparue et le granite rest\u00e9 \u00e0 l\u2019int\u00e9rieur s\u2019est retrouv\u00e9 \u00e0 la surface. <\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1-1024x768.jpg\" alt=\"\" data-id=\"612\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190910-1\/\" class=\"wp-image-612\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190910-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1-1024x768.jpg\" alt=\"\" data-id=\"613\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190912-1\/\" class=\"wp-image-613\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190912-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1-1024x768.jpg\" alt=\"\" data-id=\"614\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190913-1\/\" class=\"wp-image-614\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190913-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190915-1.jpg\" alt=\"\" data-id=\"615\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190915-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190915-1\/\" class=\"wp-image-615\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190915-1.jpg 640w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190915-1-300x225.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1-1024x768.jpg\" alt=\"\" data-id=\"616\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190916-1\/\" class=\"wp-image-616\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190916-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1-1024x768.jpg\" alt=\"\" data-id=\"617\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190917-1\/\" class=\"wp-image-617\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190917-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p><strong><em>L\u2019avis des \u00e9l\u00e8ves<\/em><\/strong><\/p>\n\n\n\n<p>Tym\u00e9o&nbsp;: J\u2019ai bien aim\u00e9 faire l\u2019exp\u00e9rience avec du sable\net de l\u2019eau et voir ce que devenait le sable. &nbsp;Comme les s\u00e9diments, il coule doucement et se\nd\u00e9pose au fond de l\u2019eau.<\/p>\n\n\n\n<p>Sahel&nbsp;: J\u2019ai appris que quand deux plaques se rencontrent\net qu\u2019il y en a une qui passe sous l\u2019autre, cela fait une pression et cela\nforme des pierres m\u00e9tamorphiques. J\u2019ai aussi appris que les s\u00e9diments sont form\u00e9s\nde poussi\u00e8res\u2026&nbsp; &nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p>&nbsp;Zo\u00e9&nbsp;: J\u2019ai bien\naim\u00e9 faire l\u2019exp\u00e9rience avec le sable et l\u2019eau, j\u2019ai aussi aim\u00e9 savoir comment\nles montagnes se sont form\u00e9es.<\/p>\n\n\n\n<p>\u00a0Adam : J\u2019ai bien aim\u00e9 l\u2019explication d\u2019Alexandre sur le granite, et le syst\u00e8me de l\u2019\u00e9rosion.\u00a0\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1-1024x768.jpg\" alt=\"\" data-id=\"618\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190918-1\/\" class=\"wp-image-618\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190918-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1-1024x768.jpg\" alt=\"\" data-id=\"619\" data-full-url=\"http:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1.jpg\" data-link=\"http:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/p1190920-1\/\" class=\"wp-image-619\" srcset=\"https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1-1024x768.jpg 1024w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1-300x225.jpg 300w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1-768x576.jpg 768w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1-1536x1152.jpg 1536w, https:\/\/sentiernaturemontmelas.fr\/wp-content\/uploads\/2020\/02\/P1190920-1.jpg 2048w\" sizes=\"(max-width: 706px) 89vw, (max-width: 767px) 82vw, 740px\" \/><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mercredi 12 f\u00e9vrier, Alexandre nous a expliqu\u00e9 l\u2019histoire de la formation des pierres. Nous avons fait une exp\u00e9rience avec du sable et de l\u2019eau. &nbsp;Alexandre a pris une caisse o\u00f9 dedans, il a mis un seau de sable pour faire en sorte que ce soit une montagne. Puis, il a pris un arrosoir et il &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/sentiernaturemontmelas.fr\/index.php\/2020\/02\/21\/la-geologie-seance-4\/\" class=\"more-link\">Continuer la lecture<span class=\"screen-reader-text\"> de &laquo;&nbsp;La G\u00e9ologie, s\u00e9ance 4&nbsp;&raquo;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/posts\/598"}],"collection":[{"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/comments?post=598"}],"version-history":[{"count":2,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/posts\/598\/revisions"}],"predecessor-version":[{"id":620,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/posts\/598\/revisions\/620"}],"wp:attachment":[{"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/media?parent=598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/categories?post=598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sentiernaturemontmelas.fr\/index.php\/wp-json\/wp\/v2\/tags?post=598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}