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Undersea slide set off giant flow
BBC News ^ | 22 November 2007 | Paul Rincon

Posted on 11/22/2007 3:56:49 PM PST by george76

An enormous underwater landslide 60,000 years ago produced the longest flow of sand and mud yet found on Earth. The landslide off the coast of north-west Africa dumped 225 billion metric tonnes of sediment into the ocean in a matter of hours or days.

The flow travelled 1,500km (932 miles) - the distance from London to Rome - before depositing its sediment.

The work, by a British team of researchers has been published in the academic journal Nature.

The massive surge put down the same amount of sediment that comes out of all the world's rivers combined over a period of 10 years.

After blocks from the original landslide disintegrated, the sand and mud travelled hundreds of kilometres suspended in the water, without depositing any sediment on the sea floor that it had passed over.

Dr Talling likened this to avalanches in which the snow travels downslope in huge clouds.

A tiny drop in the sea-floor gradient (from 0.05 degrees to 0.01 degrees) eventually forced the flow to settle into a cohesive mass.

In places, the flow was over 150km (93 miles) wide, spread across the open sea floor.

(Excerpt) Read more at news.bbc.co.uk ...


TOPICS: Extended News; News/Current Events
KEYWORDS: africa; atlantis; bushsfault; catastrophism; doggerland; geologists; godsgravesglyphs; landslide; mesolithic; norway; oceanography; scotland; scotlandyet; slide; slip; storegga; storeggaslide; storeggaslip; tsunami; tsunamis; undersea; underwater
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1 posted on 11/22/2007 3:56:50 PM PST by george76
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To: michaelbix; blam

The landslide which triggered this flow was not itself the biggest known. Several that occurred off the coast of Hawaii involved the movement of more material.

The Storegga slip off the coast of Norway was also larger.

But the scale of the flow that resulted from the African slip amazed the scientists.


2 posted on 11/22/2007 3:57:55 PM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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To: rwgal; SunkenCiv

3 posted on 11/22/2007 3:59:52 PM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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To: george76

Deep.


4 posted on 11/22/2007 4:05:00 PM PST by fanfan ("We don't start fights my friends, but we finish them, and never leave until our work is done."PMSH)
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To: george76

IBIBF

In before it’s Bush’s fault.


5 posted on 11/22/2007 4:13:56 PM PST by USNBandit (sarcasm engaged at all times)
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To: george76

There’s not enough Immodium....


6 posted on 11/22/2007 4:16:18 PM PST by P.O.E.
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To: USNBandit

yes, and this undersea slide happened before it was Bush’s fault (BBF).


7 posted on 11/22/2007 4:20:41 PM PST by Brilliant
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To: Brilliant

I hate reading these UK reports that spell lots of things wrong (tonnes, e.g.)


8 posted on 11/22/2007 4:27:40 PM PST by tenthirteen
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To: USNBandit

60,000 years ago ?


9 posted on 11/22/2007 4:28:38 PM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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To: george76

I wish I had that time machine they secretly keep in the basement


10 posted on 11/22/2007 4:41:05 PM PST by ari-freedom (Scientific consensus is formed by the public schools and government grants.)
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To: USNBandit

No, it was the bushman’s fault, and, was more than it was cracked up to be.


11 posted on 11/22/2007 4:45:22 PM PST by wizr ("Right now, the burden is all on the American soldiers. Right now, Hope Rides Alone." Sgt. E Jeffer)
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To: george76
60,000 years ago ?

It would have to be Helen Thomas's fault.

12 posted on 11/22/2007 4:55:01 PM PST by Moonman62 (The issue of whether cheap labor makes America great should have been settled by the Civil War.)
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To: george76

“Women, minorities most affected”


13 posted on 11/22/2007 6:56:23 PM PST by NewJerseyJoe (Rat mantra: "Facts are meaningless! You can use facts to prove anything that's even remotely true!")
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To: george76; SunkenCiv
Catastrophism ping.

Thanks for the ping. Not one mention of tsunamis?

14 posted on 11/22/2007 8:27:29 PM PST by blam (Secure the border and enforce the law)
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To: george76

Ah the Storegga slip! Yes, those were the days my friend!


15 posted on 11/22/2007 8:47:28 PM PST by Wally_Kalbacken (Seldom right but never in doubt)
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To: george76

It wouldn’t have happened if George Bush’s ancestor had signed the Kyotostone Protocol...


16 posted on 11/22/2007 9:56:24 PM PST by JRios1968 (Faith is not believing that God can. It is knowing that God will. - Ben Stein)
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To: george76
But the scale of the flow that resulted from the African slip amazed the scientists.

The next California slide will 'amaze' EVERYONE!

17 posted on 11/23/2007 12:07:41 PM PST by Elsie (Heck is where people, who don't believe in Gosh, think they are not going...)
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To: george76
60,000 years ago ?

Of course!

They used the very latest Silt Dating Software Ver 2.37!

18 posted on 11/23/2007 12:08:53 PM PST by Elsie (Heck is where people, who don't believe in Gosh, think they are not going...)
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To: Elsie; colorado tanker

We, in Colorado, may yet get an ocean view ?


19 posted on 11/23/2007 2:52:17 PM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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To: ari-freedom; potlatch; Grampa Dave; PhilDragoo; Seadog Bytes; sergeantdave; Clive; BOBTHENAILER
WABAC
Mr. Peabody and Sherman set the WABAC controls
to teleport back through time for another amazing adventure...

 


20 posted on 11/23/2007 2:59:38 PM PST by george76 (Ward Churchill : Fake Indian, Fake Scholarship, and Fake Art)
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