{"id":385,"date":"2025-06-26T09:41:43","date_gmt":"2025-06-26T07:41:43","guid":{"rendered":"https:\/\/qr.nationalpark.ch\/gneiss\/"},"modified":"2025-09-22T12:09:13","modified_gmt":"2025-09-22T10:09:13","slug":"gneiss","status":"publish","type":"page","link":"https:\/\/qr.nationalpark.ch\/fr\/bez\/gneiss\/","title":{"rendered":"Gneiss"},"content":{"rendered":"\n<a class=\"standort__button gb-text-b1b68d17\" data-aos=\"fade-up\"><span class=\"gb-shape\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"16\" viewbox=\"0 0 12 16\" fill=\"none\">\n<path d=\"M11.7338 5.60503C11.7338 2.50797 9.22324 -0.00259399 6.12618 -0.00259399C3.02912 -0.00259399 0.518555 2.50797 0.518555 5.60503C0.518555 6.52341 0.739276 7.39009 1.13063 8.15511C1.18433 8.25998 1.24139 8.36284 1.30139 8.46383C1.36608 8.57271 1.43425 8.67932 1.50604 8.78326L3.61494 12.0763L6.12618 15.9974L8.63742 12.0763L10.7463 8.78326L11.1217 8.15511C11.5131 7.39009 11.7338 6.52328 11.7338 5.60503ZM6.12618 8.46383C4.57685 8.46383 3.32083 7.20781 3.32083 5.65847C3.32083 4.10914 4.57685 2.85312 6.12618 2.85312C7.67552 2.85312 8.93154 4.10914 8.93154 5.65847C8.93154 7.20781 7.67552 8.46383 6.12618 8.46383Z\" fill=\"white\"><\/path>\n<\/svg><\/span><span class=\"gb-text\">C\u00f4t\u00e9 nord-ouest Centre visiteurs<\/span><\/a>\n\n<h1 class=\"gb-text gb-text-5dca1177\" data-aos=\"fade-up\"><strong>Gneiss<\/strong><\/h1>\n\n<p class=\"gb-text\" data-aos=\"fade-up\"><em>Au toucher, cette pierre semble stable et dure.<\/em><br>Ce gneiss est la pierre la plus ancienne expos\u00e9e ici \u2013 elle a environ 450 millions d\u2019ann\u00e9es. <br>Avant la formation des Alpes, c\u2019\u00e9tait un granit. La pression \u00e9norme qu\u2019elle a subie pendant la formation des Alpes l\u2019a transform\u00e9e en gneiss. De telles roches sont appel\u00e9es par les g\u00e9ologues \u00ab roches m\u00e9tamorphiques\u00bb. Elles sont caract\u00e9ris\u00e9es par la schistosit\u00e9.    <\/p>\n\n<p class=\"gb-text\" data-aos=\"fade-up\"><em>Qu\u2019est-ce que c\u2019est, la schistosit\u00e9 ?<\/em><br>Pendant la formation des montagnes, la pression aligne les min\u00e9raux en forme de couches parall\u00e8les entre elles. Le long de ces structures parall\u00e8les feuillet\u00e9es, le gneiss se d\u00e9bite en plaques. <\/p>\n\n<p class=\"gb-text\" data-aos=\"fade-up\"><em>O\u00f9 trouve-t-on du gneiss ?<\/em><br>Surtout \u00e0 Macun et autour de Zernez.<\/p>\n\n<img loading=\"lazy\" decoding=\"async\" width=\"2000\" height=\"2000\" class=\"gb-media-cc0a63d8\" alt=\"Gneiss sur Macun\" src=\"https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294.jpg\" title=\"LO_20241029_1294\" srcset=\"https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294.jpg 2000w, https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294-300x300.jpg 300w, https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294-1024x1024.jpg 1024w, https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294-150x150.jpg 150w, https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294-768x768.jpg 768w, https:\/\/qr.nationalpark.ch\/wp-content\/uploads\/2025\/09\/LO_20241029_1294-1536x1536.jpg 1536w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/>\n\n<p class=\"wp-block-paragraph\">Gneiss sur Macun<\/p>\n\n<div class=\"go__homepage\" data-aos=\"fade-up\">\n<a class=\"gb-text-c7b513e2\" href=\"https:\/\/qr.nationalpark.ch\/fr\/bez\/\"><span class=\"gb-text\">Page d&rsquo;accueil<\/span><span class=\"gb-shape\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"25\" height=\"25\" viewbox=\"0 0 25 25\" fill=\"none\">\n<circle cx=\"12.5186\" cy=\"12.6996\" r=\"11.5\" stroke=\"white\"><\/circle>\n<path d=\"M14.0186 17.9496L18.5186 12.6996L14.0186 7.44959\" stroke=\"white\"><\/path>\n<path d=\"M18.5186 12.6996H6.51855\" stroke=\"white\" stroke-width=\"0.8\"><\/path>\n<\/svg><\/span><\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4t\u00e9 nord-ouest Centre visiteurs Gneiss Au toucher, cette pierre semble stable et dure.Ce gneiss est la pierre la plus ancienne expos\u00e9e ici \u2013 elle a environ 450 millions d\u2019ann\u00e9es. Avant la formation des Alpes, c\u2019\u00e9tait un granit. La pression \u00e9norme qu\u2019elle a subie pendant la formation des Alpes l\u2019a transform\u00e9e en gneiss. De telles roches &#8230; <a title=\"Gneiss\" class=\"read-more\" href=\"https:\/\/qr.nationalpark.ch\/fr\/bez\/gneiss\/\" aria-label=\"En savoir plus sur Gneiss\">Lire plus<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":626,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-385","page","type-page","status-publish"],"acf":[],"_links":{"self":[{"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/pages\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":9,"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/pages\/385\/revisions"}],"predecessor-version":[{"id":1594,"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/pages\/385\/revisions\/1594"}],"up":[{"embeddable":true,"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/pages\/626"}],"wp:attachment":[{"href":"https:\/\/qr.nationalpark.ch\/fr\/wp-json\/wp\/v2\/media?parent=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}