{"id":30554,"date":"2023-03-09T12:46:09","date_gmt":"2023-03-09T10:46:09","guid":{"rendered":"https:\/\/www.visitgorliz.eus\/patrimonio\/dunas-petrificadas\/"},"modified":"2025-01-25T19:06:18","modified_gmt":"2025-01-25T17:06:18","slug":"petrified-dunes","status":"publish","type":"patrimonio","link":"https:\/\/www.visitgorliz.eus\/en\/heritage\/petrified-dunes\/","title":{"rendered":"PETRIFIED DUNES"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-680c8c4f wp-block-group-is-layout-constrained\" style=\"padding-top:1rem;padding-right:1rem;padding-bottom:3rem;padding-left:1rem\">\n<div class=\"wp-block-genesis-blocks-gb-columns gb-layout-columns-2 gb-2-col-wideright gb-columns-center\" style=\"margin-top:40px;margin-bottom:70px\"><div class=\"gb-layout-column-wrap gb-block-layout-column-gap-2 gb-is-responsive-column\" style=\"max-width:1450px\">\n<div class=\"wp-block-genesis-blocks-gb-column gb-block-layout-column gb-is-vertically-aligned-center\"><div class=\"gb-block-layout-column-inner\">\n<p>Next to the Gorliz hospital, in Astondo, there are petrified dunes. They were classified as a Geological Point of Interest by the Bizkaia Provincial Council in 1990 and they are also a Special Conservation Zone according to European assessments. These coastal dunes are the single example in the Basque Coast.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-genesis-blocks-gb-column gb-block-layout-column\"><div class=\"gb-block-layout-column-inner\">\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-thumbnail\"><img decoding=\"async\" width=\"150\" height=\"150\" data-id=\"25703\" data-src=\"https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/Dunak-copia-300x193-1-150x150.jpg\" alt=\"Petrified dunes\" class=\"wp-image-25703 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail\"><img decoding=\"async\" width=\"150\" height=\"150\" data-id=\"25707\" data-src=\"https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/DunaRecorte-211x300-1-150x150.jpg\" alt=\"Petrified dunes\" class=\"wp-image-25707 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail\"><img decoding=\"async\" width=\"150\" height=\"150\" data-id=\"25711\" data-src=\"https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/Dunas-petrificadas-dunas-gorliz-2-300x225-1-150x150.jpg\" alt=\"Petrified dunes\" class=\"wp-image-25711 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/figure>\n<\/figure>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-primary-color has-alpha-channel-opacity has-primary-background-color has-background is-style-default\"\/>\n\n\n\n<div class=\"wp-block-genesis-blocks-gb-columns gb-layout-columns-1 one-column\"><div class=\"gb-layout-column-wrap gb-block-layout-column-gap-2 gb-is-responsive-column\">\n<div class=\"wp-block-genesis-blocks-gb-column gb-block-layout-column\"><div class=\"gb-block-layout-column-inner\" style=\"text-align:center\">\n<iframe data-src=\"https:\/\/www.google.com\/maps\/embed?pb=!1m18!1m12!1m3!1d6603.802069578305!2d-2.9486606543174996!3d43.41620019944277!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0xd4e5d30f180c105%3A0xdbb7285da9a02f26!2sDuna%20Harriztatuak!5e1!3m2!1ses!2ses!4v1715006158300!5m2!1ses!2ses\" width=\"800\" height=\"450\" style=\"border:0;\" allowfullscreen=\"\" referrerpolicy=\"no-referrer-when-downgrade\" title=\"How to get to the Gorliz PETRIFIED DUNES\" src=\"about:blank\" class=\"lazyload\" data-load-mode=\"0\"><\/iframe>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-79c1f68e wp-block-group-is-layout-constrained\" style=\"padding-top:30px;padding-right:0;padding-left:0\">\n<h2 class=\"wp-block-heading\"><strong>What are petrified sand dunes?<\/strong><\/h2>\n\n\n\n<p>Gorliz petrified dunes are accumulations of sand moved by the wind that has settled and dried up. They become solid when the humidity evaporates and, by weight, the sand is compacted creating different layers. Thus, the sandstone is formed. The different layers can be in horizontal position and make curious shapes thanks to the action of the wind.<\/p>\n\n\n\n<p>As regards their colour, it is very similar to the one of the beach sand since this is its origin.<\/p>\n\n\n\n<p>On the other hand, its composition is quite varied. Some of the levels of these formations have found fossils up to 6000 years old. This is why it is estimated that the dunes are about 6000 years old. These fossils are small living beings\u2019 shells and carapaces that were buried under the layers of sand. In addition, the formation is not homogeneous at all. In some areas it is very porous and this is why the water has been seeping through these dunes for centuries until an aquifer is created, from which the&nbsp;<a href=\"https:\/\/www.visitgorliz.eus\/en\/heritage\/marine-sanatorium\/\">Gorliz Sanatorium<\/a>&nbsp;collects water today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Video guide<\/strong><\/h2>\n\n\n\n<p>Discover the dunes through this video.<\/p>\n\n\n\n<div class=\"wp-block-genesis-blocks-gb-columns gb-layout-columns-2 gb-2-col-equal gb-columns-center\" style=\"margin-top:40px;margin-bottom:70px\"><div class=\"gb-layout-column-wrap gb-block-layout-column-gap-2 gb-is-responsive-column\" style=\"max-width:1450px\">\n<div class=\"wp-block-genesis-blocks-gb-column gb-block-layout-column gb-is-vertically-aligned-top\"><div class=\"gb-block-layout-column-inner\">\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Petrified Dunes of Gorliz\" width=\"500\" height=\"281\" data-src=\"https:\/\/www.youtube.com\/embed\/7vbpF5iNEbk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"about:blank\" class=\"lazyload\" data-load-mode=\"0\"><\/iframe>\n<\/div><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-genesis-blocks-gb-column gb-block-layout-column gb-is-vertically-aligned-center\"><div class=\"gb-block-layout-column-inner\" style=\"margin-top:20px\">\n<iframe id='audio_41609911' frameborder='0' allowfullscreen='' scrolling='no' height='300' style='border:1px solid #EEE; box-sizing:border-box; width:100%;' data-src='https:\/\/www.ivoox.com\/player_ej_41612222_4_1.html?c1=ff6600' title=\"How to get to the Gorliz PETRIFIED DUNES\" src=\"about:blank\" class=\"lazyload\" data-load-mode=\"0\"><\/iframe>\n<\/div><\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><strong>Transcription&nbsp;of&nbsp;video&nbsp;and&nbsp;audio<\/strong><\/p>\n\n\n\n<p>Located next to the hospital, we find one of the places of greatest geological and natural interest of the Cantabrian coast: the petrified dunes.<\/p>\n\n\n\n<p>Declared by Europe Special Conservation Zone (ZEC), these dunes are the result of thousands of years of accumulations of sedimented sand that have cemented over time.<\/p>\n\n\n\n<p>Corresponding to the composition, the different strata are classified into three broad bands. One of them is composed of shells that date back 6000 years.<\/p>\n\n\n\n<p>The porosity of some strata facilitated the filtration of the water for years, creating an underground aquifer that supplies Gorliz\u2019s hospital to date.<\/p>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"featured_media":28596,"template":"","meta":{"footnotes":""},"class_list":["post-30554","patrimonio","type-patrimonio","status-publish","has-post-thumbnail","hentry"],"featured_image":{"thumbnail":["https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/dunas-petrificadas-gorliz-1-150x150.jpg",150,150,true],"medium":["https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/dunas-petrificadas-gorliz-1-300x180.jpg",300,180,true],"medium_large":["https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/dunas-petrificadas-gorliz-1.jpg",500,300,false],"large":["https:\/\/www.visitgorliz.eus\/wp-content\/uploads\/2023\/03\/dunas-petrificadas-gorliz-1.jpg",500,300,false]},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Petrified dunes next to Gorliz Beach<\/title>\n<meta name=\"description\" content=\"If you are interested in geology, come and discover the petrified dunes in Gorliz. 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