[meteorite-list] One of the Strangest Landforms That I Ever Seen(Siberia, Russsia)

From: Sterling K. Webb <sterling_k_webb_at_meteoritecentral.com>
Date: Wed, 12 Feb 2014 00:58:08 -0600
Message-ID: <364769.80119.bm_at_smtp114.sbc.mail.gq1.yahoo.com>

List,

Bingo, a pingo!

Of course, none of the pingoes I can
find pictures of have the exact peculiar
shape of the Patomskiy crater. But they
do have similar but varied shapes, of
which this could easily be one more
variation.

No evidence of any kind of meteoritic
impact. This is a formation produced
by slow pushing, not instantaneous
impact. All the rocks in evidence in
the photos are broken by cold physical
forces. No evidence of heat; it's not
vulcanism; it's not impact.

That leaves the pingo-theory. From the
raw look of the feature, I would say it
was young compared to other pingoes.

A few hours ago, I'd never heard of a
pingo, and now they seem to be everywhere.
At least, everywhere on the internet.

There are pingoes on the seafloor:
http://www.mbari.org/news/news_releases/2007/paull-plfs.html

More pingoes here:
http://www.amusingplanet.com/2014/01/the-pingos-of-tuktoyaktuk.html

And here:
http://www.arctic.uoguelph.ca/cpe/environments/land/features/freeze-thaw/pin
goes.htm

And here:
http://www.pwnhc.ca/inuvialuit/placenames/ibyukwhat.html

Everybody likes to take pingo pictures:
http://www-personal.umich.edu/~kpetaine/visuals/album/NLand/Pingo/

http://www.geo.uu.nl/fg/berendsen/pictures/photography/alaska/Pingo.jpg

http://toheroa-jim.blogspot.com/2010/03/from-asphalt-to-permafrost-blisters.
html

http://fineartamerica.com/featured/collapsed-pingo-science-source.html

http://www.flickr.com/photos/wyojones/galleries/72157623260224291

Steps in the cycle:
http://www.fws.gov/alaska/nwr/arctic/permcycl.htm

World's largest pingo?
http://www.bubblews.com/news/1173173-what-is-the-world039s-largest-pingo

As for the unique cone-in-a-crater shape,
that could be explained by the growth of
a first large pingo crater-mound with a
collapsed crest (of which there are many examples), followed by a period of
quiescence.

Then, the pingo pump mechanism started up
again on a smaller scale and pushed up the
central mound inside the larger pingo,
with the result we see today. In other
words, a cyclical pingo. It could be driven
by climatic cycles (on the century-length
scale). With an age of about 500 years,
there's been time for a few on-off cycles.


Sterling K. Webb
--------------------------------------
-----Original Message-----
From: meteorite-list-bounces at meteoritecentral.com
[mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Paul H.
Sent: Monday, February 10, 2014 9:54 PM
To: meteorite-list at meteoritecentral.com
Subject: [meteorite-list] One of the Strangest Landforms That I Ever
Seen(Siberia, Russsia)

A really strange landform has made the news in Russia and now has appeared
in the Mail Online. Articles with pictures and rather weird speculation
about meteorites and all sorts of other processes that might have created
it.

What (or who) created Siberia's 'Eagle's Nest'?
A meteorite, a nuke or gulag inmates? Scientists baffled by Sarah Griffids,
Mail Online, Feb. 7, 2014
http://www.dailymail.co.uk/sciencetech/article-2553841/Siberian-eagles-nest-
continues-baffle-scientists-Theories-250-year-old-mound-formed-range-meteori
te-strike-nuclear-blast.html

Huge Eagle Nest in woods, English Russia,May 27, 2013
http://englishrussia.com/2013/05/27/huge-eagle-nest-in-the-woods/

What created this mysterious Siberian crater? by Kate Baklitskaya, The
Siberian Times, October 14, 2012
http://www.sott.net/article/264671-What-created-this-mysterious-Siberian-cra
ter

This is certainly one of the strangest craterwrongs that I have ever seen.
Some of the various theories that have been proposed for its origins are
mentioned in:

Patomsky crater - the nest of fire Eagle. Unknown Russia
http://runknown.com/patomsky-crater-the-nest-of-fire-eagle

I would be interested in what the people on this list think about what might
have created this pile of rock?

Does anyone know what is being said about it among Russian geologists and
geomorphologists?

Whatever, it is, it is quite young.

Yours,

Paul H.

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Received on Wed 12 Feb 2014 01:58:08 AM PST