The mysterious forest rings of northern Ontario


	The mysterious forest rings of northern Ontario

A53GG4

5-28-2008 10:25 AM

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5-28-2008 10:37 AM

ericskiff

Interesting. I wonder if they could be the ridges of craters from meteorites, where the centers have been filled in...

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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/f414ea54-fb79-4035-a37f-16d4540a1086/C4EEB7A9-25B9-4934-BDD3-65AF0A344197/" 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.cbc.ca/news/background/tech/science/forest-rings.html" href="http://www.cbc.ca/news/background/tech/science/forest-rings.html" style="font-size: 11px;">www.cbc.ca</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.cbc.ca/news/background/tech/science/forest-rings.html"><H1 class="headline">The mysterious forest rings of northern Ontario </H1></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.cbc.ca/news/background/tech/science/forest-rings.html"><H4 class="lastupdated">Last Updated May 21, 2008</H4></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.cbc.ca/news/background/tech/science/forest-rings.html"><H5 class="byline">By Elle Andra-Warner</H5></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.cbc.ca/news/background/tech/science/forest-rings.html"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/www.cbc.ca/img/CC6741CE-2A16-479F-B9ED-BFECB7DF308C" alt="" /></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.cbc.ca/news/background/tech/science/forest-rings.html"><P>It is a strange phenomenon: thousands of large, perfectly round "forest rings" dot the boreal landscape of northern Ontario.  </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.cbc.ca/news/background/tech/science/forest-rings.html"><EM>The Cheecka Ring is a ring measuring about 1 kilometre in diameter, located 20 km east of Hearst, Ont. Scientists believe it was formed by a natural gas deposit.
(Courtesy S. Hamilton, OGS)</EM></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.cbc.ca/news/background/tech/science/forest-rings.html"><P>From the air, these mysterious light-coloured rings of stunted tree growth are clearly visible, but on the ground, you could walk right through them without noticing them. They range in diameter from 30 metres to 2 kilometres, with the average ring measuring about 91 metres across. Over 2,000 of these forest rings have been documented, but scientists estimate the actual number is more than 8,000. </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.cbc.ca/news/background/tech/science/forest-rings.html"><P>What causes these near-perfect circles in the forest?  </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.cbc.ca/news/background/tech/science/forest-rings.html">Some explanations put a UFO or extraterrestrial spin on the phenomenon. </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/C4EEB7A9-25B9-4934-BDD3-65AF0A344197/blog/" title="blog or email this clip"><img src="http://content8.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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