{"id":1087,"date":"2024-08-21T09:58:23","date_gmt":"2024-08-21T07:58:23","guid":{"rendered":"https:\/\/lehrpfad.umwelt-campus.de\/geological-outcrop\/"},"modified":"2025-09-10T08:28:45","modified_gmt":"2025-09-10T06:28:45","slug":"geological-outcrop","status":"publish","type":"page","link":"https:\/\/lehrpfad.umwelt-campus.de\/en\/geological-outcrop\/","title":{"rendered":"Geological outcrop"},"content":{"rendered":"\n<div class=\"wp-block-uagb-container uagb-block-ddf63a6a alignfull uagb-is-root-container\"><div class=\"uagb-container-inner-blocks-wrap\">\n<div class=\"wp-block-uagb-container uagb-block-d71b3bf5\">\n<h2 class=\"wp-block-heading\">On a voyage of discovery into history<\/h2>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/229_1_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p>An \u201eoutcrop\u201c is an area of the earth\u2018s surface where rock and bedrock are exposed. Usually, rough structures and layers can be recognised. Natural outcrops are found, for example, at the edges of landslides, on steep banks and coasts, and on rock faces. Artificial outcrops occur, for example, in open-cast mines, quarries, gravel pits, construction pits and road or railway cuts.<\/p>\n\n\n\n<p>Here at this site, the construction of the former Neubr\u00fccke-Birkenfeld railway line has made the meeting of two different rock formations visible. We find almost ideal outcrop conditions, because one can recognise both coarse structures of the rock and fine sedimentary structures.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:34% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_1.webp\" alt=\"\" class=\"wp-image-884 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_1.webp 600w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_1-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_1-150x150.webp 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>Rock of volcanic origin<\/strong><br>On the northern side, to the left , one can see a compact rock of volcanic origin, called andesite.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:34% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_2.webp\" alt=\"\" class=\"wp-image-886 size-full\" srcset=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_2.webp 600w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_2-300x300.webp 300w, https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/08\/229_2-150x150.webp 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><strong>Sedimentary rock<\/strong><br>On the southern side, to the right, a sedimentary rock from river deposits is visible. This consists of a mixture of small and large boulders and pebbles with fine sands and clays.<\/p>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/lehrpfad.umwelt-campus.de\/wp-content\/uploads\/2025\/09\/229_2_eng.mp3\"><\/audio><\/figure>\n\n\n\n<p>The rocks were formed about 300 million years ago. In Central Europe, a high mountain range (Variscan Mountains) was formed by the collision of the primeval continents. The high mountain range was worn away by intensive erosion and the rivers transported the alluvial material into the large basin, which stretched from the Saar river to the Rhine river. Due to the high pressure of overlying rock layers, sandstones, claystones and conglomerates were formed here. At the same time, along tectonic faults in the earth\u2018s mantle, viscous magma rose from the earth\u2018s interior into these sedimentary layers and cooled. This rock is called andesite. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-e9c5f59b\">\n<h4 class=\"wp-block-heading\">Geological outcrop<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>are refuges for many endangered animal and plant species.<\/li>\n\n\n\n<li>are usually characterised by a relative lack of nutrients, strong temperature differences and a low water storage capacity.<\/li>\n\n\n\n<li>provide insights into the physical and historical development of the earth, of the landscape and of life.<\/li>\n<\/ul>\n<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Your location:<\/h2>\n\n\n    <div id=\"map_69e8ec905cf5f\" style=\"height: 400px; margin: 20px 0;\"><\/div>\n    <script>\n    document.addEventListener('DOMContentLoaded', function () {\n        var map = L.map('map_69e8ec905cf5f').setView([49.63424144196163, 7.16203954308683], 15);\n\n        \/\/ OSM Layer\n        L.tileLayer('https:\/\/{s}.tile.openstreetmap.org\/{z}\/{x}\/{y}.png', 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