{"id":4709,"date":"2020-05-28T13:10:39","date_gmt":"2020-05-28T11:10:39","guid":{"rendered":"https:\/\/site.uit.no\/cage\/?p=4709"},"modified":"2023-04-04T10:30:54","modified_gmt":"2023-04-04T08:30:54","slug":"chasing-the-freshwater-from-an-old-ice-sheet","status":"publish","type":"post","link":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/","title":{"rendered":"Chasing the freshwater from an old ice sheet"},"content":{"rendered":"<h4><strong>During a spectacular cruise in 2017 onboard RV \u201cG.O. Sars\u201d a CAGE team of scientists discovered a new cold seep from the Lofoten-Vester\u00e5len margin (Norwegian Sea). This summer, the team is back at the site and will try to find more evidence for the ultimate driver for this cold seep.<\/strong><\/h4>\n<h6>Text: Jochen Knies<\/h6>\n<p><!--more--><\/p>\n<div class=\"embed-container\"><iframe title=\"Exploring the Lofoten canyons\" width=\"1200\" height=\"675\" data-src=\"https:\/\/www.youtube.com\/embed\/2ptyas2CRcU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/div>\n<p>&nbsp;<\/p>\n<p>With the help of Remotely Operating Vehicle (ROV) \u201c\u00c6gir 6000\u201d the team found a biomass-rich, chemosynthesis-based community in ca. 800 m water depth, far from light-dependent photosynthetic marine productivity (see <a href=\"https:\/\/www.nature.com\/articles\/s41598-018-38070-9\">Sen et al. 2019<\/a>). The ultimate driver for the formation of these organisms remains unclear. However, the team discovered that submarine groundwater discharge is closely associated with the occurrence of chemosynthetic organisms (<a href=\"https:\/\/agupubs.onlinelibrary.wiley.com\/doi\/full\/10.1029\/2019GL084237\">Hong et al. 2019<\/a>). This freshwater seepage is likely coupled to the outcropping, highly porous sandstone of the Eocene age that acts as a potential aquifer for the freshwater. Dating of methane-derived authigenic carbonates precipitated around the cold seep shows that the freshwater accumulation in the sub-seafloor is an inherited product of the collapsing ice sheet once covered the nearby landmasses in NW Europe during the last ice age.<\/p>\n<p>From the 06th to 13th of June, the CAGE team will have another opportunity to chase this freshwater onboard RV \u201cG.O. Sars\u201d with ROV \u00c6gir 6000. The goal is to inspect more sites along the Lofoten-Vester\u00e5len margin to see whether the freshwater discharge is more widespread along the margin and can indeed be traced back to the former ice sheet.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>During a spectacular cruise in 2017 onboard RV \u201cG.O. Sars\u201d a CAGE team of scientists &hellip; <\/p>\n<p class=\"read-more-link\"><a href=\"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/\">Read more<span class=\"screen-reader-text\"> \u00abChasing the freshwater from an old ice sheet\u00bb<\/span><\/a><\/p>\n","protected":false},"author":123546,"featured_media":4714,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[120,125],"tags":[],"class_list":["post-4709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cruise-blog","category-lofoten-canyons-revisited-20-1"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate<\/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:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate\" \/>\n<meta property=\"og:description\" content=\"During a spectacular cruise in 2017 onboard RV \u201cG.O. Sars\u201d a CAGE team of scientists &hellip; Read more \u00abChasing the freshwater from an old ice sheet\u00bb\" \/>\n<meta property=\"og:url\" content=\"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/\" \/>\n<meta property=\"og:site_name\" content=\"CAGE, Centre for Arctic Gas Hydrate, Environment and Climate\" \/>\n<meta property=\"article:published_time\" content=\"2020-05-28T11:10:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-04T08:30:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1251\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"mes008\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"mes008\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/\"},\"author\":{\"name\":\"mes008\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/#\\\/schema\\\/person\\\/8ca571fbe6eeb50de6ef7ee495e02eb7\"},\"headline\":\"Chasing the freshwater from an old ice sheet\",\"datePublished\":\"2020-05-28T11:10:39+00:00\",\"dateModified\":\"2023-04-04T08:30:54+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/\"},\"wordCount\":259,\"image\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/wp-content\\\/uploads\\\/sites\\\/492\\\/2020\\\/06\\\/canyons_lofoten_arunima-sen-scaled.jpg\",\"articleSection\":[\"Cruise blog\",\"Lofoten Canyons revisited 20.1\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/\",\"url\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/\",\"name\":\"Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/wp-content\\\/uploads\\\/sites\\\/492\\\/2020\\\/06\\\/canyons_lofoten_arunima-sen-scaled.jpg\",\"datePublished\":\"2020-05-28T11:10:39+00:00\",\"dateModified\":\"2023-04-04T08:30:54+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/#\\\/schema\\\/person\\\/8ca571fbe6eeb50de6ef7ee495e02eb7\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/2020\\\/05\\\/28\\\/chasing-the-freshwater-from-an-old-ice-sheet\\\/#primaryimage\",\"url\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/wp-content\\\/uploads\\\/sites\\\/492\\\/2020\\\/06\\\/canyons_lofoten_arunima-sen-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/wp-content\\\/uploads\\\/sites\\\/492\\\/2020\\\/06\\\/canyons_lofoten_arunima-sen-scaled.jpg\",\"width\":2048,\"height\":1251,\"caption\":\"With the help of Remotely Operating Vehicle (ROV) \u201c\u00c6gir 6000\u201d scientists found a biomass-rich, chemosynthesis-based community at ca. 800 m water depth in Lofoten, far from light-dependent photosynthetic marine productivity. Image: Arunima Sen\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/#website\",\"url\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/\",\"name\":\"CAGE, Centre for Arctic Gas Hydrate, Environment and Climate\",\"description\":\"UiT The Arctic University of Norway\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/#\\\/schema\\\/person\\\/8ca571fbe6eeb50de6ef7ee495e02eb7\",\"name\":\"mes008\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g\",\"caption\":\"mes008\"},\"url\":\"https:\\\/\\\/site.uit.no\\\/cage\\\/author\\\/mariana-esteves\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/","og_locale":"en_US","og_type":"article","og_title":"Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate","og_description":"During a spectacular cruise in 2017 onboard RV \u201cG.O. Sars\u201d a CAGE team of scientists &hellip; Read more \u00abChasing the freshwater from an old ice sheet\u00bb","og_url":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/","og_site_name":"CAGE, Centre for Arctic Gas Hydrate, Environment and Climate","article_published_time":"2020-05-28T11:10:39+00:00","article_modified_time":"2023-04-04T08:30:54+00:00","og_image":[{"width":2048,"height":1251,"url":"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg","type":"image\/jpeg"}],"author":"mes008","twitter_card":"summary_large_image","twitter_misc":{"Written by":"mes008","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/#article","isPartOf":{"@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/"},"author":{"name":"mes008","@id":"https:\/\/site.uit.no\/cage\/#\/schema\/person\/8ca571fbe6eeb50de6ef7ee495e02eb7"},"headline":"Chasing the freshwater from an old ice sheet","datePublished":"2020-05-28T11:10:39+00:00","dateModified":"2023-04-04T08:30:54+00:00","mainEntityOfPage":{"@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/"},"wordCount":259,"image":{"@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/#primaryimage"},"thumbnailUrl":"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg","articleSection":["Cruise blog","Lofoten Canyons revisited 20.1"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/","url":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/","name":"Chasing the freshwater from an old ice sheet - CAGE, Centre for Arctic Gas Hydrate, Environment and Climate","isPartOf":{"@id":"https:\/\/site.uit.no\/cage\/#website"},"primaryImageOfPage":{"@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/#primaryimage"},"image":{"@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/#primaryimage"},"thumbnailUrl":"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg","datePublished":"2020-05-28T11:10:39+00:00","dateModified":"2023-04-04T08:30:54+00:00","author":{"@id":"https:\/\/site.uit.no\/cage\/#\/schema\/person\/8ca571fbe6eeb50de6ef7ee495e02eb7"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/site.uit.no\/cage\/2020\/05\/28\/chasing-the-freshwater-from-an-old-ice-sheet\/#primaryimage","url":"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg","contentUrl":"https:\/\/site.uit.no\/cage\/wp-content\/uploads\/sites\/492\/2020\/06\/canyons_lofoten_arunima-sen-scaled.jpg","width":2048,"height":1251,"caption":"With the help of Remotely Operating Vehicle (ROV) \u201c\u00c6gir 6000\u201d scientists found a biomass-rich, chemosynthesis-based community at ca. 800 m water depth in Lofoten, far from light-dependent photosynthetic marine productivity. Image: Arunima Sen"},{"@type":"WebSite","@id":"https:\/\/site.uit.no\/cage\/#website","url":"https:\/\/site.uit.no\/cage\/","name":"CAGE, Centre for Arctic Gas Hydrate, Environment and Climate","description":"UiT The Arctic University of Norway","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/site.uit.no\/cage\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/site.uit.no\/cage\/#\/schema\/person\/8ca571fbe6eeb50de6ef7ee495e02eb7","name":"mes008","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/41490ca776111aa67719f2c10bc540d1285a0fb2bd364132fdd4a5603630ab48?s=96&d=mm&r=g","caption":"mes008"},"url":"https:\/\/site.uit.no\/cage\/author\/mariana-esteves\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/posts\/4709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/users\/123546"}],"replies":[{"embeddable":true,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/comments?post=4709"}],"version-history":[{"count":2,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/posts\/4709\/revisions"}],"predecessor-version":[{"id":4716,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/posts\/4709\/revisions\/4716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/media\/4714"}],"wp:attachment":[{"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/media?parent=4709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/categories?post=4709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.uit.no\/cage\/wp-json\/wp\/v2\/tags?post=4709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}