Missing Crust?

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Offline Bass

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Missing Crust?
« on: 01/03/2007 18:07:36 »
Oceanographic and earth scientists from Cardiff University are investigating an unusual area in the Atlantic Ocean:

"Cardiff University scientists will shortly set sail (March 5) to investigate a startling discovery in the depths of the Atlantic.

Scientists have discovered a large area thousands of square kilometres in extent in the middle of the Atlantic where the Earth's crust appears to be missing. Instead, the mantle - the deep interior of the Earth, normally covered by crust many kilometres thick - is exposed on the seafloor, 3000m below the surface."

Will be intereseting to see what this research uncovers.
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Offline daveshorts

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Missing Crust?
« Reply #1 on: 01/03/2007 22:20:28 »
Yes my impression was that the crust is pulling apart there, but the mantle isn't melting underneath to produce more crust. I wonder if there is something unusual about the mantle composition/temperature there.

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Offline JimBob

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Missing Crust?
« Reply #2 on: 02/03/2007 12:57:04 »
How have I missed this news? Where is the work on this - "Geophysics", "JGR," Other? THANKS!
The mind is like a parachute. It works best when open.  -- A. Einstein

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Offline Bass

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Missing Crust?
« Reply #3 on: 02/03/2007 23:36:53 »
I first picked this up from a BBC science story:
http://news.bbc.co.uk/1/hi/wales/6405667.stm
Old enough to have a grandson
Slow enough to study rocks
Thirsty enough to find a pub