Mysterious Ice Circles in World’s Deepest Lake

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	Mysterious Ice Circles in World’s Deepest Lake

amgumen

6-1-2009 11:36 PM

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4 Comments |

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6-2-2009 3:48 AM

jmatts78

Volcanic activity perhaps... or ALIENS!!!!!!

6-2-2009 10:58 AM

ShannonGB

Well those aliens always did have a thing for circles...

6-3-2009 3:00 PM

lakotahope

Nah, sewage systems backed up then were diverted

6-3-2009 4:37 PM

suzukisuv

Very nice.

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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://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/e8cd411c-1920-4e39-8e94-bef131353011/5C6EBA2E-331A-4B44-BCD6-9B359A609B85/" 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.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/" href="http://www.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/" style="font-size: 11px;">www.wired.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.wired.com/img/A986FB16-ED94-46A0-83BC-B430C3C8E1A9" alt="baikal1" /></div></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.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/"><P>The two circles are the focal points for ice break-up and may be caused by upwelling of warmer water in the lake. The dark color of the circles is due to thinning of the ice, which usually hangs around into June. Upwelling wouldn’t be strange in some relatively shallow areas of the lake where hydrothermal activity has been detected, such as where the circle near the center of the lake (pictured below) is located. Circles have been seen in that area before in 1985 and 1994, though they weren’t nearly as pronounced. But the location of the circle near the southern tip of the lake (pictured above) where water is relatively deep and cold is puzzling.</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.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/"><P>The lake itself is an oddity. It is the largest by volume and the deepest (5370 feet at its deepest point), as well as one of the oldest at around 25 million years. The photo above was taken by an astronaut from the ISS. The photo below was taken by NASA’s <A href="http://modis.gsfc.nasa.gov/">MODIS satellite instrument</A>.</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.wired.com/wiredscience/2009/05/astronauts-spot-mysterious-ice-circles-in-worlds-deepest-lake/"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.wired.com/img/D5A357E0-3375-4A3F-B8F1-94CDDDF5DBA4" alt="baikal3" /></div></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/5C6EBA2E-331A-4B44-BCD6-9B359A609B85/blog/" title="blog or email this clip"><img src="http://content6.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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