Volcanoes Erupt Beneath Arctic Ice


	Volcanoes Erupt Beneath Arctic Ice
amgumen
7-6-2008 10:18 PM
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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/aa52c82c-621d-4bd7-9644-469f8890cd80/110DB979-B522-4B39-894E-AA87366B75BC/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?s=environment&c=&l=on&pic=070621_artic_globe_02.jpg&cap=This+map+of+the+Arctic+Ocean+shows+the+Gakkel+Ridge%2C+Nansen+Basin%2C+Lomononsov+Ridge%2C+and+the+proposed+cruise+track+of+the+icebreaker+Oden.+Credit%3A+Jack+Cook%2FWHOI.&title=" href="http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?s=environment&c=&l=on&pic=070621_artic_globe_02.jpg&cap=This+map+of+the+Arctic+Ocean+shows+the+Gakkel+Ridge%2C+Nansen+Basin%2C+Lomononsov+Ridge%2C+and+the+proposed+cruise+track+of+the+icebreaker+Oden.+Credit%3A+Jack+Cook%2FWHOI.&title=" style="font-size: 11px;">www.livescience.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?s=environment&c=&l=on&pic=070621_artic_globe_02.jpg&cap=This+map+of+the+Arctic+Ocean+shows+the+Gakkel+Ridge%2C+Nansen+Basin%2C+Lomononsov+Ridge%2C+and+the+proposed+cruise+track+of+the+icebreaker+Oden.+Credit%3A+Jack+Cook%2FWHOI.&title="><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.livescience.com/img/CD876041-7230-489E-8BB6-5F1839E0E95C" alt="" /></div></blockquote><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content8.clipmarks.com/images/clip-icon.gif" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.livescience.com/environment/080627-sea-volcanoes.html" href="http://www.livescience.com/environment/080627-sea-volcanoes.html" style="font-size: 11px;">www.livescience.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/environment/080627-sea-volcanoes.html"><P>
New evidence deep beneath the Arctic ice suggests a series of underwater volcanoes have erupted in violent explosions in the past decade. 
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/environment/080627-sea-volcanoes.html"><P>
Hidden 2.5 miles (4,000 meters) beneath the Arctic surface, the volcanoes are up to a mile (2,000 meters) in diameter and a few hundred yards tall. They formed along the Gakkel Ridge, a <A href="http://www.livescience.com/environment/070621_arctic_ice.html">lengthy crack</A> in the ocean crust where two rocky plates are spreading apart, pulling new melted rock to the surface.  
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/environment/080627-sea-volcanoes.html">discovered <A href="http://www.livescience.com/php/multimedia/imagedisplay/img_display.php?s=environment&c=&l=on&pic=080627-gakkel-shards-02.jpg&cap=Glassy%2C+granular+fragments+of+rock+were+a+key+piece+of+evidence+that+volcanoes+along+the+Gakkel+Ridge+have+exploded+violently.+Credit:+Adam+Soule+and+Claire+Willis%2C+WHOI.&title=">jagged, glassy fragments</A> of rock scattered around the volcanoes, suggesting explosive eruptions occurred between 1999 and 2001.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/environment/080627-sea-volcanoes.html"><P>
They hypothesize that the slow spreading could allow excess gas to build up in pockets of magma beneath the oceanic crust. When the gas pressure gets high enough, it pops like a champagne bottle being uncorked. 
</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/environment/080627-sea-volcanoes.html"><P>
The eruptions discharge large amounts of carbon dioxide, helium, trace metals and heat into the water over long distances, he said. 
</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/110DB979-B522-4B39-894E-AA87366B75BC/blog/" title="blog or email this clip"><img src="http://content9.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
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