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Hundreds of giant 12,000 year-old craters caused by methane blow-outs found on the Arctic...
DailyMailUK ^ | Jun 01, 2017

Posted on 06/03/2017 5:17:31 PM PDT by BenLurkin

Researchers have discovered hundreds of huge craters, with many over 3,000 feet wide, on the seafloor of the Arctic Ocean.

The craters in the Barents Sea, north of Norway and Russia, formed through huge mounds full of methane exploding suddenly and catastrophically around 12,000 years ago, and are still leaking methane.

Scientists say the discovery could help explain why so many craters have appeared in Siberia over recent decades, with the same processes causing these explosive events.

...

he Arctic ocean floor hosts vast amounts of methane trapped as hydrates, which are ice-like, solid mixtures of gas and water.

These hydrates are stable under high pressure and cold temperatures.

The ice sheet provides perfect conditions for subglacial gas hydrate formation, in the past as well as today.

Some 2000 metres of ice loaded what now is ocean floor with heavy weight.

Under the ice, methane gas from deeper hydrocarbon reservoirs moved upward, but could not escape.

It was stored as gas hydrate in the sediment, constantly fed by gas from below, creating over-pressured conditions.

...

'As the ice sheet rapidly retreated, the hydrates concentrated in mounds, and eventually started to melt, expand and cause over-pressure.

'The principle is the same as in a pressure cooker: if you do not control the release of the pressure, it will continue to build up until there is a disaster in your kitchen.

'These mounds were over-pressured for thousands of years, and then the lid came off.

'They just collapsed releasing methane into the water column' says Andreassen.

(Excerpt) Read more at dailymail.co.uk ...


TOPICS: Science
KEYWORDS: arctic; craters; methane; seafloor
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1 posted on 06/03/2017 5:17:32 PM PDT by BenLurkin
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To: BenLurkin

Somebody let Bloomberg know. He’s got to take action on this! /sarc


2 posted on 06/03/2017 5:19:56 PM PDT by Twotone (Truth is hate to those who hate truth.)
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To: BenLurkin

I recently had a methane blowout and annoyed my wife.


3 posted on 06/03/2017 5:20:36 PM PDT by \/\/ayne (I regret that I have but one subscription cancellation notice to give to my local newspaper.)
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To: BenLurkin

Has Hillary been there? Do they grow cabbages?


4 posted on 06/03/2017 5:27:29 PM PDT by dforest
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To: \/\/ayne

Tell her it is better to blow out than to blow up.


5 posted on 06/03/2017 5:27:50 PM PDT by TexasRepublic (Socialism is the gospel of envy and thse religion of thieves. Socialism is governmental theft!)
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To: BenLurkin

Maybe if we had some really big corks, we could get carbon credits.


6 posted on 06/03/2017 5:33:51 PM PDT by Redmen4ever
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To: BenLurkin

But petroleum is made from “thick layers of biological mats...”


7 posted on 06/03/2017 5:36:14 PM PDT by wastoute (Government cannot redistribute wealth. Government can only redistribute poverty.)
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To: BenLurkin

CH4 beats CO2 by a wide margin.

When are we going to tax the Antarctic sea floor?


8 posted on 06/03/2017 5:37:36 PM PDT by AFreeBird
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To: BenLurkin

Musta been a lot of dinosaurs up there...


9 posted on 06/03/2017 5:37:43 PM PDT by ChinaGotTheGoodsOnClinton (Go Egypt on 0bama)
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To: BenLurkin

Wooly Mammoth farts


10 posted on 06/03/2017 5:38:32 PM PDT by BigEdLB (To Dimwitocrats: We won. You lost. Get used to it.)
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To: AFreeBird

Or better yet use it before it is released into the atmosphere.


11 posted on 06/03/2017 5:39:06 PM PDT by Brilliant
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To: BenLurkin

Earth farts. Blame Mother Gaia...


12 posted on 06/03/2017 5:40:27 PM PDT by be-baw (still http://www.mynbc5.com/article/flynn-to-provide-some-documents-under-subpoena-to-senate-intelli)
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To: BenLurkin

There does seem to have been a whole lot of climate changing going on 12 -14 thousand years ago...


13 posted on 06/03/2017 5:40:29 PM PDT by Just mythoughts
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To: Brilliant

Well, yea! But that would be wrong. Or so they say.


14 posted on 06/03/2017 5:41:29 PM PDT by AFreeBird
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To: BenLurkin

I read recently about one found in Russia and they were feebly trying to connect it to global warming....


15 posted on 06/03/2017 5:43:04 PM PDT by Aut Pax Aut Bellum (Stay Calm and Carry.)
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To: ChinaGotTheGoodsOnClinton

The Methane was there long before the dynosaurs came to be.


16 posted on 06/03/2017 5:45:38 PM PDT by 353FMG
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To: BenLurkin

Better start harvesting these hydrates. Otherwise someone could drop an acetylene torch, and BOOM!

5.56mm


17 posted on 06/03/2017 5:46:45 PM PDT by M Kehoe
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To: BenLurkin

Earth Farts Cause Global Warming


18 posted on 06/03/2017 6:01:03 PM PDT by kaehurowing
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To: M Kehoe

China claims a recent breakthrough in harvesting this stuff:

http://www.freerepublic.com/focus/f-news/3555227/posts


19 posted on 06/03/2017 6:02:54 PM PDT by ClearCase_guy (Abortion is what slavery was: immoral but not illegal. Not yet.)
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To: ClearCase_guy

Thanks. Saw that. Didn’t say how, but it’s a good idea.

5.56mm


20 posted on 06/03/2017 6:11:22 PM PDT by M Kehoe
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