Photo Courtesy S. Hamilton, OGS
CBC NEWS IN DEPTH: May 21, 2008
By Elle Andra-Warner
It is a strange phenomenon: thousands of large, perfectly round “forest rings” dot the boreal landscape of northern Ontario.
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.
What causes these near-perfect circles in the forest?
Since they were discovered on aerial photos about 50 years ago, the rings have baffled biologists, geologists and foresters. Some explanations put a UFO or extraterrestrial spin on the phenomenon. Astronomers suggest the rings might be the result of meteor strikes. Prospectors wonder whether the formations signal diamond-bearing kimberlites, a type of igneous rock.
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on Monday, June 2nd, 2008 at 3:05 pm and is filed under environment, mysteries, symbols.
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Photo Courtesy S. Hamilton, OGS
CBC NEWS IN DEPTH: May 21, 2008
By Elle Andra-Warner
It is a strange phenomenon: thousands of large, perfectly round “forest rings” dot the boreal landscape of northern Ontario.
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.
What causes these near-perfect circles in the forest?
Since they were discovered on aerial photos about 50 years ago, the rings have baffled biologists, geologists and foresters. Some explanations put a UFO or extraterrestrial spin on the phenomenon. Astronomers suggest the rings might be the result of meteor strikes. Prospectors wonder whether the formations signal diamond-bearing kimberlites, a type of igneous rock.
read more here:
CBC NEWS IN DEPTH - CLICK HERE
ELPHINSTUDIO CLICK HERE!
This entry was posted
on Monday, June 2nd, 2008 at 3:05 pm and is filed under environment, mysteries, symbols.
You can follow any responses to this entry through the RSS 2.0 feed.
You can skip to the end and leave a response. Pinging is currently not allowed.