Images of coral off Tahiti sampled for the study (Credit: IODP)
Posted on 04/07/2012 12:01:22 PM PDT by SunkenCiv
Previous research could not accurately date the sea-level rise but now an Aix-Marseille University-led team, including Oxford University scientists Alex Thomas and Gideon Henderson, has confirmed that the event occurred 14,650-14,310 years ago at the same time as a period of rapid climate change known as the Bølling warming...
During the Bølling warming high latitudes of the Northern hemisphere warmed as much as 15 degrees Celsius in a few tens of decades. The team has used dating evidence from Tahitian corals to constrain the sea level rise to within a period of 350 years, although the actual rise may well have occurred much more quickly and would have been distributed unevenly around the world's shorelines.
Dr Thomas said: 'The Tahitian coral is important because samples, thousands of years old, can be dated to within plus or minus 30 years. Because Tahiti is an ocean island, far away from major ice sheets, sea-level evidence from its coral reefs gives us close to the 'magic' average of sea levels across the globe, it is also subsiding into the ocean at a steady pace that we can easily adjust for.'
...What exactly caused the Bølling warming is a matter of intense debate: a leading theory is that the ocean's circulation changed so that more heat was transported into Northern latitudes.
The new sea-level evidence suggests that a considerable portion of the water causing the sea-level rise at this time must have come from melting of the ice sheets in Antarctica, which sent a 'pulse' of freshwater around the globe. However, whether the freshwater pulse helped to warm the climate or was a result of an already warming world remains unclear.
(Excerpt) Read more at sciencedaily.com ...
Images of coral off Tahiti sampled for the study (Credit: IODP)
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| GGG managers are SunkenCiv, StayAt HomeMother & Ernest_at_the_Beach | |
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Thanks Renfield. |
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And not an SUV or coal-fired power plant in sight....
Maybe carbon dioxide is not as much of a factor in planetary warming and/or cooling as once thought.
Could either A) a sudden surge of heat from the earth’s interior, released through geothermal vents or eruptions, or B) a sudden surge in the heat reaching the earth from the sun, due to the sun’s own heat release activity, have anything to do with the cataclysmic ice melting?
It takea an AWFUL lot of heat units to convert so much ice to liquid water. Check the textbooks on this.
But first he asked: “What’s an ark?”
That didn’t make sense to me either.
Lets see if my math is still up to par. A decade is ten years, ten decades would mean a hundred years, tens of decades loosely translated would equal to about 500 years so a few of those would equal to at least 2000 years......
We're screwed!
Except of course at Tahiti.
I think what they are talking about is a catastrophic melt. Happening very quickly it would seem the water levels nearer the poles would raise faster than the levels closer to the equator. Something that would happen as white hot Venus comes cruising by on it's way to become planet number 2.
Which explains what happened to Atlantis. 2 giant waves of water, one from the South, one from the North meet at Atlantis. The enormous upthrust of water submerges the huge power crystal and it goes nova. When the water recedes, levels out, Atlantis is gone.
I just knew there was a reasonable explanation. :-)
I kinda like to stick to the Venus thing. A one time event. The thought of the dark side of the moon being a huge mirror (think ‘burning mirrors of Archimedes’) and that the aliens can spin the moon around and fry us like burning ants with a magnifying glass, or melting the poles just for the heck of it, frightens me. I don’t know why that is.
Ooookay.
There is nothing to fear but fear itself. So be afraid. Be very afraid!
Ooh, and here’s another ... 3,600 x 4 = 14,400.
Just in case you needed to work that 2012 deal in somewhere along the way, lol.
The melting inland is known to have accumulated in spots, until the ice dams themselves melted, unleashing the meltwaters and producing (for just one instance) the Channeled Scablands.
:’) The article gives a figure of 350 years.
:’D
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