Talk:Allison Guyot

Allison Guyot is a featured article; it (or a previous version of it) has been identified as one of the best articles produced by the Wikipedia community. Even so, if you can update or improve it, please do so.

This article appeared on Wikipedia's Main Page as Today's featured article on April 12, 2019.

Article milestones
Date	Process	Result
February 25, 2019	Featured article candidate	Promoted

Seamounts (inactive)

This article is within the scope of WikiProject Seamounts, a project which is currently considered to be inactive.SeamountsWikipedia:WikiProject SeamountsTemplate:WikiProject SeamountsSeamounts articles

Volcanoes Mid‑importance

	Volcanoes portal This article is within the scope of WikiProject Volcanoes, a collaborative effort to improve the coverage of volcanoes, volcanology, igneous petrology, and related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.VolcanoesWikipedia:WikiProject VolcanoesTemplate:WikiProject VolcanoesWikiProject Volcanoes articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

The following references may be useful when improving this article in the future:

Vandalism

Hi, I don't understand one thing. The page apparently was vandalized and then quickly reverted to the right version. But as an unlogged user I still see the vandalized version. It's not good if the vandalized page is visible as a today's featured article. If I log in I see the newest version. I'm not an experienced user, I would appreciate if somebody could explain to me, why is it so, how to fix it, and... where to report this kind of things? Borys1703 (talk) 00:47, 13 April 2019 (UTC)[reply]

The same thing is happening to me. There must be some kind of weird technical issue going on? Aoi (青い) (talk) 01:25, 13 April 2019 (UTC)[reply]

@Borys1703: I just purged the page. It seems to have worked on my browser, can you check to see if it looks OK on yours? Much thanks, Aoi (青い) (talk) 01:30, 13 April 2019 (UTC)[reply]

Now it looks ok, also when I log out. Borys1703 (talk) 04:13, 13 April 2019 (UTC)[reply]

Yeah, sometimes the caches do not update immediately after a vandalism revert. Jo-Jo Eumerus (talk, contributions) 09:05, 13 April 2019 (UTC)[reply]

Depth below sea surface???

As I do not typically travel on the sea floor and the depth of the adjoining sea floor is not mentioned, it would be nice to be able to somewhere read the the distance between the top of the undersea platform and the current surface of the sea. Is it a hazard to shipping? Is it a hazard to submarines? Etc. Thanks. — Preceding unsigned comment added by 108.199.79.38 (talk) 12:09, 12 April 2019 (UTC)[reply]

That's a good question. The problem is that none of the sources I have seen gives a definitive minimum depth; the bathymetric map here on page 15 only indicates that it's shallower than 1,500 metres (4,900 ft), and some sources confuse the depth of the seamount with the depth of th Site 865 drill core. Jo-Jo Eumerus (talk, contributions) 15:51, 12 April 2019 (UTC)[reply]

Radius of a trapezoid

Piledhigheranddeeper Regarding your "how can a trapezoid have a radius?" edit, based on the map it seems like some sources (including the one cited for the statement) approximate the shape as a circle. I am not sure whether that is a geometrically sound concept, but there you go. Jo-Jo Eumerus (talk, contributions) 08:42, 14 April 2019 (UTC)[reply]

Thanks. "Width" seems a much better term. --Piledhigheranddeeper (talk) 15:30, 15 April 2019 (UTC)[reply]

@Piledhigheranddeeper: Er, a radius is half a width of a circular shape. If anything it should say a width of 24 kilometres ... and the source explicitly says "radius". Moreover, Grötsch and Flügel 1992 say that the summit platform has dimensions of 35km x 70km which is hardly compatible with the claim of a 12km radius. I'll yank the radius estimate; the Grötsch and Flügel source is more coherent with the bathymetry of the seamount. Jo-Jo Eumerus (talk, contributions) 15:59, 15 April 2019 (UTC)[reply]

While a radius is indeed half a diameter (and I wondered if I should double the figure) I checked the bathymetric map in the source; it suggests that the width (as opposed to the—obviously—greater length) of the top (anyway) is in the neighborhood of the distance cited. I think there's value in giving the size: in the absence of a map or silhouette, it enables the reader better to visualize the geography. If you'd prefer the length-by-width approach, that works for me. --Piledhigheranddeeper (talk) 16:19, 15 April 2019 (UTC)[reply]