{"id":267,"date":"2023-05-14T08:46:07","date_gmt":"2023-05-14T06:46:07","guid":{"rendered":"https:\/\/nationalpark.08eins-preview.ch\/en\/flore-et-faune\/geologie\/verrucano\/"},"modified":"2024-01-05T16:24:52","modified_gmt":"2024-01-05T15:24:52","slug":"verrucano","status":"publish","type":"florafauna_cpt","link":"https:\/\/nationalpark.ch\/en\/flora-and-fauna\/verrucano\/","title":{"rendered":"Verrucano"},"content":{"rendered":"<p><strong>The origin of this rock, an accumulation of debris such as sand and gravel, lies in the dismantling of a mountainous belt that existed long before the formation of the Alps.<\/strong><\/p>\n<p>You may have already encountered the conglomerates of the northern border of the Alps known as \u201cNagelfluh\u201d, a cemented gravel mixture of sand and rounded stones of different sizes. These conglomerates are the result of dismantling of the Alps by erosion and the subsequent deposit of debris.<\/p>\n<p>Of similar origin, Verrucano is 200 million years older and resulted from the erosion of the central European Hercynian\/Variscan massifs.<\/p>\n<p>Verrucano consists of cemented gravel and sand and belongs to the so-called clastic sedimentary rocks. The red colouring is due to minute traces of iron. The light-coloured parts in the rock consist mainly of quartz from former pebbles or grains of sand.<\/p>\n<p>If you take the path along the river from the\u00a0Hotel Parc Naziunal Il Fuorn, the ground often has a purple colour \u2013 this comes from verrucano. The best place to see verrucano is at the entrance of the Trupchun valley; there are blocks of verrucano lying in the riverbed half way between the Pras\u00fcras car park and the Varusch hut.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"template":"","class_list":["post-267","florafauna_cpt","type-florafauna_cpt","status-publish","hentry","florafauna_category-geology","florafauna_category-sedimentary-rocks"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Verrucano - Swiss National Park<\/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:\/\/nationalpark.ch\/en\/flora-and-fauna\/verrucano\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Verrucano - 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