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View Full Version : Big Crater in Siberia's Yamal Penninsula



Squink
2014-Jul-16, 07:28 PM
Large crater appears at the 'end of the world' (http://siberiantimes.com/other/others/features/large-crater-appears-at-the-end-of-the-world/)
Methane explosion? Meteorite crater? Scientists baffled by gigantic 262ft hole that has appeared at Siberia's 'End of The World' (http://www.dailymail.co.uk/travel/travel_news/article-2693105/Giant-hole-appears-Siberia-Huge-crater-emerges-end-world.html#ixzz37ZUw0oYg)
Yamal Peninsula (http://en.wikipedia.org/wiki/Yamal_Peninsula)

The hole may have been there a couple years before discovery. Methane clathrates are hinted at, but no one's had a close look yet.
Video appears to show crater wall material slipping into a central, big dark hole in the ground.
Not yet obviously a hoax, so the thing bears watching.

NEOWatcher
2014-Jul-16, 07:59 PM
Video appears to show crater wall material slipping into a central, big dark hole in the ground.
I saw that earlier, and the first think I thought was "sinkhole" because of that big dark hole. But; that wouldn't explain what looks like ejecta.
So; I'll go with the champagne cork idea.

dgavin
2014-Jul-16, 08:28 PM
The report mention area's with scorch marks on the inner rim.

Trebuchet
2014-Jul-17, 12:36 AM
Caution: If you value your sanity, do not bother reading the comments on those articles!

DaveC426913
2014-Jul-17, 12:46 AM
Teaser for a new movie?

Not that I want to immediately go uber-skeptic but, if someone were going to make a teaser for a new movie, it would look like this video.

Prediction? Those scientists en route to the site in the next few days will suffer a mishap and we will lose contact with them.

(Although, even Time magazine is reporting it (http://time.com/2992819/hole-siberia-yamal-peninsula/), and they're pretty thorough.)

Squink
2014-Jul-17, 04:18 PM
Pravda has report from scientists who've been to the scene (http://english.pravda.ru/science/earth/17-07-2014/128068-giant_sinkhole-0/):

"On this site, there was a release of material from insides of the earth, - the scientist said. - I do not think that it was accompanied with an explosion, because in this case, high temperatures would have been required. This is purely a mechanical ejection, which most likely occurred due to increased pressure at the time, when some sort of a cavity was freezing and changing. Most likely, the cavity was filled with swamp gas."

The diameter of the inner edge of the crater is about 40 meters, and 60 meters on the outside. Fragments of rock were scattered as a result of the emission on the square of 120 meters, senior researcher of the Scientific Research Center of the Arctic, Andrei Plekhanov said.

To accurately determine the depth of the hole, one needs to resort to the help of professional climbers, said the specialist, noting that approaching the edge of the sinkhole was dangerous as the edges constantly crumble.

NEOWatcher
2014-Jul-17, 06:33 PM
Well there you go.
It's not aliens, it's swamp gas. And now we have evidence. :clap:

Squink
2014-Jul-29, 05:12 PM
Two new mysterious craters emerge in Siberia, deepening giant hole saga (http://www.washingtonpost.com/news/morning-mix/wp/2014/07/29/two-new-mysterious-craters-emerge-in-siberia-deepening-giant-hole-saga/?tid=hp_mm)
One of the newly discovered holes is near the original ..... It’s around 45 feet in diameter and formed under unknown conditions. Same goes for the other new crater, which has a diameter of 13 feet, a depth of between 200 and 330 feet and was discovered by “mystified” herders near the village of Nosok in the icy Krasnoyarsk region.
The Siberian Times has better pics (http://siberiantimes.com/science/casestudy/news/now-two-new-large-holes-appear-in-siberia/), and more local information.

Ara Pacis
2014-Jul-29, 06:17 PM
Galactus is coming?

Swift
2014-Jul-29, 06:57 PM
I wonder if these are some sort of permafrost equivalent of a sink hole?

Jeff Root
2014-Jul-29, 09:44 PM
The Siberian Times has better pics (http://siberiantimes.com/science/casestudy/news/now-two-new-large-holes-appear-in-siberia/)
The brown debris on top is extremely jagged, suggesting it is
very fresh. The gray inner slopes, in contrast, look highly eroded.
Can that be due to their being different materials? Or what?
Below the highly-eroded dark gray is a less-eroded lighter
brownish-gray. What is happening at the sharp line between
that and the very smooth, dark area below? It almost looks
like a reflection on water. If it *isn't* a reflection, it appears
to curve back in, making an incredible overhang. Is that real?

-- Jeff, in Minneapolis

Squink
2014-Jul-29, 10:30 PM
More pics from inside the first crater:
First pictures from inside the 'crater at the end of the world' (http://siberiantimes.com/science/casestudy/news/first-pictures-from-inside-the-crater-at-the-end-of-the-world/)
The best theory for now is that the crater was formed by internal - not external - forces.

'For now we can say for sure that under the influence of internal processes there was an ejection in the permafrost. I want to stress that it was not an explosion, but an ejection, so there was no heat released as it happened'.

Earlier scientists were sure there was burning visible on the sides of the crater.

'I also want to recall a theory that our scientists worked on in the 1980s - it has been left and then forgotten for a number of years.

'The theory was that the number of Yamal lakes formed because of exactly such natural process happening in the permafrost.

'Such kind of processes were taking place about 8,000 years ago. Perhaps they are repeating nowadays. If this theory is confirmed, we can say that we have witnessed a unique natural process that formed the unusual landscape of Yamal peninsula. I'm not seeing enough ejecta to account for a hole 70 meters deep with a lake at the bottom.

Ara Pacis
2014-Jul-30, 01:32 PM
There are reports of these in two other locations (http://www.washingtonpost.com/news/morning-mix/wp/2014/07/29/two-new-mysterious-craters-emerge-in-siberia-deepening-giant-hole-saga/?tid=hp_mm).

It's gotta be where the dolphins hid their ships. Because of global warming, they are leaving. So long and thanks for all the fish.

Squink
2014-Jul-30, 02:50 PM
Ara, see post #8. That's why I updated the thread.

Jeff Root: Very smooth walls indeed. I wonder if some of the erosion in the light/dark grey region is caused by wind rather than water.

John Mendenhall
2014-Jul-30, 03:07 PM
More pics from inside the first crater:
First pictures from inside the 'crater at the end of the world' (http://siberiantimes.com/science/casestudy/news/first-pictures-from-inside-the-crater-at-the-end-of-the-world/)I'm not seeing enough ejecta to account for a hole 70 meters deep with a lake at the bottom.

How about if the ejecta was ice and melted?

John Mendenhall
2014-Jul-30, 03:12 PM
By the way, good thread. Who would have thought there is what appears to be a pretty good newspaper called The Siberian Times?

Ara Pacis
2014-Jul-30, 04:17 PM
By the way, good thread. Who would have thought there is what appears to be a pretty good newspaper called The Siberian Times?

Why I linked to WaPo as confirmation.

Squink
2014-Jul-30, 09:12 PM
The towns/villages these things are near are all pretty close to sea level:
Antipayuta elevation 3 meters
Nosok elevation 3 meters
Bovanenkovo elevation 8 meters - Permafrost Thickness: 300 m

Jeff Root
2014-Jul-31, 06:34 AM
From the highly-eroded appearance of the dark gray layer and
the knowledge that the hole is no more than a couple of years
old, can we say that the dark gray material is easily eroded by
water but does not fracture easily?

-- Jeff, in Minneapolis

Squink
2014-Jul-31, 10:43 PM
can we say that the dark gray material is easily eroded by
water but does not fracture easily?
Video of water eroding the gray material here: Has mystery of the Siberian craters finally been solved? Scientist claims they were created by SINKHOLES that erupted outwards (http://www.dailymail.co.uk/sciencetech/article-2711806/Has-mystery-Siberian-craters-finally-solved-Scientist-claims-created-SINKHOLES-erupted-outwards.html#ixzz395ZDy7bB).
'The version about melting permafrost due to climate change, causing a release of methane gas, which then forces an eruption is the current favourite, though scientists are reluctant to offer a firm conclusion without more study.'
...
His theory is backed up by recent helicopter footage of the first hole in the Yamal region which reveals a mound of loose dirt that appears to have been thrown out.

Swift
2014-Aug-01, 01:37 PM
Video of water eroding the gray material here: Has mystery of the Siberian craters finally been solved? Scientist claims they were created by SINKHOLES that erupted outwards (http://www.dailymail.co.uk/sciencetech/article-2711806/Has-mystery-Siberian-craters-finally-solved-Scientist-claims-created-SINKHOLES-erupted-outwards.html#ixzz395ZDy7bB).
ToSeeked! :D

I wonder if these are some sort of permafrost equivalent of a sink hole?

Trebuchet
2014-Aug-01, 02:47 PM
The confirmed total is three, I believe, but that's a mighty remote region. I bet they'll find more. I also wonder if there's some similar geology in northern Canada or Alaska.

Squink
2014-Aug-05, 05:40 PM
Nature even:
Mysterious Siberian crater attributed to methane (http://www.nature.com/news/mysterious-siberian-crater-attributed-to-methane-1.15649)
Air near the bottom of the crater contained unusually high concentrations of methane — up to 9.6% — in tests conducted at the site on 16 July, says Andrei Plekhanov, an archaeologist at the Scientific Centre of Arctic Studies in Salekhard, Russia. Plekhanov, who led an expedition to the crater, says that air normally contains just 0.000179% methane.
...
Plekhanov and his team believe that it is linked to the abnormally hot Yamal summers of 2012 and 2013, which were warmer than usual by an average of about 5C. As temperatures rose, the researchers suggest, permafrost thawed and collapsed, releasing methane that had been trapped in the icy ground.

Other researchers argue that long-term global warming might be to blame...

Cruithne3753
2014-Aug-05, 09:10 PM
Could be a mini-verneshot (http://en.wikipedia.org/wiki/Verneshot) ?

JESMKS
2014-Sep-05, 09:55 PM
I wonder how a pingo would appear if the forming ice melted?

Squink
2014-Nov-15, 12:26 AM
The Siberian Times Shines Again:

Exclusive new pictures INSIDE Siberian crater (http://siberiantimes.com/science/casestudy/news/n0018-exclusive-new-pictures-inside-mystery-siberian-crater/)
It's winter in Siberia. They can climb down there without dying. The pix are beautiful. There's a frozen lake at the bottom. Methane clathrates are still the chief suspect.

Trebuchet
2014-Nov-15, 06:11 AM
Very nice. But as usual, don't read the comments.

KaiYeves
2014-Nov-15, 04:18 PM
Very nice. But as usual, don't read the comments.

This is the Internet, that goes without saying.

publiusr
2014-Nov-15, 09:18 PM
I thought I saw James Arness climbing out of it...

Squink
2015-Feb-26, 12:53 PM
Dozens of new craters suspected in northern Russia (http://siberiantimes.com/science/casestudy/news/n0127-dozens-of-mysterious-new-craters-suspected-in-northern-russia/)
Examination using satellite images has helped Russian experts understand that the craters are more widespread than was first realised, with one large hole surrounded by as many as 20 mini-craters, The Siberian Times can reveal.
'We know now of seven craters in the Arctic area,' he said. 'Five are directly on the Yamal peninsula, one in Yamal Autonomous district, and one is on the north of the Krasnoyarsk region, near the Taimyr peninsula.
'One of the most interesting objects here is the crater that we mark as B2, located 10 kilometres to the south of Bovanenkovo. On the satellite image you can see that it is one big lake surrounded by more than 20 small craters filled with water.

'Studying the satellite images we found out that initially there were no craters nor a lake. Some craters appeared, then more. Then, I suppose that the craters filled with water and turned to several lakes, then merged into one large lake, 50 by 100 metres in diameter.

'This big lake is surrounded by the network of more than 20 'baby' craters now...

Squink
2015-Jul-18, 05:33 PM
New expedition to Yamal Crater (http://siberiantimes.com/science/casestudy/news/n0302-startling-changes-revealed-in-mystery-craters-in-northern-siberia/)


Solved? How scientists say mystery craters were formed in northern Siberia
Giant holes created when pingos erupted after filling with gas.
...
'We can now say more confidently about the process that led to the formation of the famous Yamal crater B-1. It was combination of a thermokarst (a form of pre-glacial topography) process and the migration of gases from the depth'.
...
'We know for sure that there is a fissure in the ground under this spot, probably even two intersecting faults - gullies around the spot confirm this.'
Nice new video of the hole turning into a lake.
Not sure how seriously to take the explanation.