Talk:Pingo

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Outdated info

A suggestion to those who know more about editing:

This page: http://en.wikipedia.org/wiki/Pingo

provides the old traditional description of how these structures are formed on land by heaving of water ice from permafrost. (Edit 16:29, 28 December 2011 (UTC): still there as of Dec. 2011)

Recent work (2003) observing them -- underwater -- suggests that may be an error: http://www.mbari.org/news/news_releases/2003/paull_pingos.html

(Edit 16:29, 28 December 2011 (UTC): updated and further support at http://www.mbari.org/news/news_releases/2007/paull-plfs-images.html )

"... the gas emerging from the submarine pingos appears to be nearly pure methane. This suggests that it did not originate from a natural gas reservoir that lies deep below the sea floor in this area. In addition, water in the submarine pingo cores is only half as salty as water in the surrounding sediments, suggesting that it came from buried freshwater ice rather than from the overlying seawater.

"... none of these early data conclusively proves that the gas and fresh water in the pingos originated in methane hydrates. However, the circumstantial evidence is very suggestive. ...."

Suggesting this in the talk page because I'm not up to editing articles, just hoping to point out to someone who does that this particular one is very much out of date -- Hank (talk) 16:29, 28 December 2011 (UTC)[reply]

If a pingo grows 2 cm per year, a 70 m high pingo will need not decades nor even hundreds, but houseands of years to grow. 3500 in this case. Decades do not seem enough. Bart

What is say it that "Pingos usually grow only a few centimetres per year, with Ibyuk Pingo growning at a rate of 2 centimetres..." but not that all grow at 2 cm a year, and that only indicates that the Ibyuk is currently growing at that rate. If "a few" = 5 to 10 cm then the decades would be correct. It needs better information on the growth rate. CambridgeBayWeather Have a gorilla 16:34, 30 November 2008 (UTC)[reply]

Incidentally, and maybe suggestive about the way a pingo is created, if you overfill a cake pan or muffin tin with batter, the middle of your cake or muffin will "pingo". That is because the batter, as it expands in baking, cooks and hardens first on the outside, and then the batter in the middle cannot expand except upward. So a pingo might form when there is a place of loose soil surrounded by firmer soil. It might not take long to form. The growth would be exponential, at least for a time. Wastrel Way (talk) Eric

External Links

The two external links (diagram of open and closed system pingo) lead to pages, that don't exist any more. 217.7.204.75 (talk) 14:55, 28 December 2010 (UTC)[reply]

Google caches a Powerpoint with diagrams of open and closed system pingos, but the link is "blacklisted" so the URL can't appear here; you can find it by searching for: pingo undersea methane ppt Hank (talk) 16:39, 28 December 2011 (UTC)[reply]

Coordinates

Why are coordinates provided at the top right as if this were a specific location? If nobody objects, I'll remove them. Kansan (talk) 19:35, 5 April 2011 (UTC)[reply]

another meaning

Pingo bearers walk to and fro with their burdens of fruit and vegetables, representing many varieties quite strange to us. The pingo is a long and flat piece of wood from the kittul palm, very touch and pliable. The coolie, having suspended his load to the two ends in baskets or nets, places the stave upon his shoulder at the middle, and is thus enabled by the elastic spring and easy balance of the pingo to carry great weights for a considerable distance. Some pingoes are made from the leaf-stalk of the coconut palm, which is even more pliable than the kittul. This is a favourite means of carrying liquids, placed in eathenware chatties attached to the pingo by means of coir.
— Ali Foad Toulba, Ceylon, the Land of Eternal Charm

apparently also means a ceylonese traditional carrying stick... eg. search for 'pingo carrier'. prat (talk) 21:32, 6 July 2015 (UTC)[reply]

If it's notable enough to have its own article, then create that and add a hat note. If it's not notable enough then it shouldn't be mentioned in this article either. Mikenorton (talk) 22:13, 6 July 2015 (UTC)[reply]

External links modified (January 2018)

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Outlined

Twice in the text, both times in the caption of a photograph, a drained lake is described as being able to be outlined. What exactly is this supposed to mean? None of three dictionary definitions of outline seem to be relevant. Is this some type of geological jargon? Rwflammang (talk) 20:45, 21 November 2022 (UTC)[reply]

I think that "The formerly drained lake can be outlined." should read "The outline of the previously drained lake can be seen." Ping Matti&Keti to see if that is what they meant. CambridgeBayWeather, Uqaqtuq (talk), Huliva 09:50, 25 November 2022 (UTC)[reply]