{"id":28857,"date":"2022-06-08T12:16:08","date_gmt":"2022-06-08T10:16:08","guid":{"rendered":"https:\/\/www.ig.cas.cz\/?p=28857"},"modified":"2022-09-27T13:23:24","modified_gmt":"2022-09-27T11:23:24","slug":"magmatic-systems-at-mount-erebus-antarctica","status":"publish","type":"post","link":"https:\/\/www.ig.cas.cz\/en\/magmatic-systems-at-mount-erebus-antarctica\/","title":{"rendered":"Magmatic systems at Mount Erebus Antarctica"},"content":{"rendered":"<p>Antarctica has long drawn explorers and scientists to investigate the icy continent from the heroic feats of the first expeditions by James Ross, Roald Amundsen, Robert Falcon Scott and Ernest Shackleton to the far more comfortable efforts by the scientists of today. Antarctica is a&nbsp;key piece in the puzzle for understanding global continental evolution, including volcanism. It contains examples that define the spectrum of Earth&#8217;s&nbsp;magmatic and volcanic processes.<\/p>\n<p>Mount Erebus, on Ross Island, is considered an end-member example of CO<sub>2<\/sub> dominated rift volcanism in contrast to the more common H<sub>2<\/sub>O dominated rift volcanism of the pacific rim and elsewhere associated by plate subduction.<\/p>\n<p>Understanding the magma ascent from deep mantle source remains a&nbsp;driving unresolved question of extensional volcanism like that of Mount Erebus. Results from a&nbsp;new study by <a href=\"https:\/\/www.ig.cas.cz\/en\/contact\/staff\/graham-hill\/\">Graham Hill<\/a> and co-authors published in <em>Nature Communications<\/em> shows how CO<sub>2<\/sub> deep underground helps magma avoid being trapped deep in the Earth and allows it to reach and pool at the surface.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28861 aligncenter\" src=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2022\/06\/2022-tz-nature-commun.-gh_pic-01-scaled.jpg\" alt=\"\" width=\"701\" height=\"233\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Left: <\/strong>On the southern flanks of Mount Erebus Ross Island, Antarctica. From left to right: Graham Hill (geophysicist), Danny Uhlmann (IFMGA mountain guide &amp; geologist), and Phil Wannamaker (geophysicist). <strong>Right:<\/strong> Setting up a&nbsp;magnetotelluric site via helicopter support in the Windless Night area of Ross Island which Mount Erebus in the background. From left to right: John Stodt, Phil Wannamaker, and Graham Hill. <em>Photo credit<\/em>: Danny Uhlmann by permission.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-28863 \" src=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2022\/06\/2022-tz-nature-commun.-gh_pic-02-scaled.jpg\" alt=\"\" width=\"701\" height=\"251\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Left:<\/strong> Phil Wannamaker (left) and Graham Hill (right) at an magnetotelluric site near Erebus crater rim, holding the flags of the U.S. Antarctic Program and the New Zealand Royal Society Marsden Fund. <em>Photo credit<\/em>: Mark Deaker by permission. <strong>Right:<\/strong> Graham Hill checking an magnetotelluric site near Cape Evans on Ross Island with the Transantarctic Mountains in the background. <em>Photo credit<\/em>: Danny Uhlmann by permission.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"js-share-url\">Original Article<\/p>\n<p class=\"js-share-url\">Hill, G.J., Wannamaker, P.E., Maris, V., <i>et al.<\/i> <strong>Trans-crustal structural control of CO<sub>2<\/sub>-rich extensional magmatic systems revealed at Mount Erebus Antarctica<\/strong>. <i>Nature Communication<\/i> 13<b>, <\/b>2989 (2022). DOI: <a href=\"https:\/\/doi.org\/10.1038\/s41467-022-30627-7\">https:\/\/doi.org\/10.1038\/s41467-022-30627-7<\/a><\/p>\n<p>Corresponding author: <a href=\"https:\/\/www.ig.cas.cz\/en\/contact\/staff\/graham-hill\/\">Graham Hill<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-28868 aligncenter\" src=\"https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2022\/06\/2022-tz-nature-commun.-gh_grafika-01.jpg\" alt=\"\" width=\"702\" height=\"309\" \/><\/p>\n<p style=\"text-align: left;\"><strong>Left:<\/strong> Map of Antarctica showing location of Mount Erebus. <em>Source<\/em>: Wikimedia (modified). Own work Data from http:\/\/nsidc.org\/data\/moa\/ &#8211; Haran, T., J. Bohlander, T. Scambos, and M. Fahnestock compilers. 2005. MODIS Mosaic of Antarctica image map. National Snow and Ice Data Center, digital media. Metadata for Antarctica&#8217;s&nbsp;Coastline and Ice Sheet Grounding Line Files: http:\/\/nsidc.org\/data\/docs\/agdc\/nsidc0280_scambos\/. ETOPO1 Ice Surface: Amante, C. and B. W. Eakins, ETOPO1&nbsp;1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24, 19 pp, March 2009. CC: <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\">CC BY-SA 3.0<\/a><\/p>\n<p><strong>Right:<\/strong> 3D visualization from the magnetotelluric scan of Erebus interior. <em>Source<\/em>: Hill, G.J., Wannamaker, P.E., Maris, V., <em>et al.<\/em> Trans-crustal structural control of CO<sub>2<\/sub>-rich extensional magmatic systems revealed at Mount Erebus Antarctica. Nature Commun 13<strong>, <\/strong>2989 (2022).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right;\">Author: <a href=\"https:\/\/www.ig.cas.cz\/en\/contact\/staff\/graham-hill\/\">Graham Hill<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Antarctica has long drawn explorers and scientists to investigate the icy continent from the heroic feats of the first expeditions by James Ross, Roald Amundsen, Robert Falcon Scott and Ernest Shackleton to the far more comfortable efforts by the scientists of today. Antarctica is a&nbsp;key piece in the puzzle for understanding global continental evolution, including [&hellip;]<\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[109,125],"tags":[],"class_list":["post-28857","post","type-post","status-publish","format-standard","hentry","category-news-eng","category-research-eng"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Magmatic systems at Mount Erebus Antarctica - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.<\/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:\/\/www.ig.cas.cz\/en\/magmatic-systems-at-mount-erebus-antarctica\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Magmatic systems at Mount Erebus Antarctica - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\" \/>\n<meta property=\"og:description\" content=\"Antarctica has long drawn explorers and scientists to investigate the icy continent from the heroic feats of the first expeditions by James Ross, Roald Amundsen, Robert Falcon Scott and Ernest Shackleton to the far more comfortable efforts by the scientists of today. 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