Talk:Mid-Atlantic Ridge

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Inconsistancy[edit]

There is an inconsistancy betweeb this page and the one on mid-ocean ridges - that page says the movement is 10mm per year (each side?) and this page says the Atlantic is growing by 50-60mm year. Any one know the right figure?

Kert01 10:36, 18 August 2006 (UTC)[reply]

Reply on Talk:Mid-ocean ridge - Vsmith 11:40, 18 August 2006 (UTC)[reply]

There is also an inconsistency in the naming of the American plate, describing it as the North American is misleading as the plate stretches around both North America, South America and Central America and should be renamed the American plate.

JefferySinclair (talk) 06:38, 15 May 2021 (UTC)[reply]

See North American Plate, South American Plate and the Fifteen-Twenty Fracture Zone, which either forms the boundary between the two or is close to that boundary. Mikenorton (talk) 08:18, 15 May 2021 (UTC)[reply]

Info missing[edit]

I would have been interessted in the depth (or average depth) of the ridge. —Preceding unsigned comment added by 193.49.124.107 (talk) 11:12, 22 September 2006

Other than on Iceland. (SEWilco 02:25, 23 September 2006 (UTC))[reply]

Found mention that "The ridge has a height of 2,500 meters below sea level, whereas its flank is about 5,000 meters deeper." (SEWilco 19:55, 20 November 2006 (UTC))[reply]

Date of opening of Mid-atlantic[edit]

I tried to find out the date at which North America, and South America, started to drift away from Europe/Africa, but conld not find it anywhere. I suggest that it is included in this entry. (I think that it is 110 MYA (million years ago). 80.229.250.120 23:24, 28 April 2007 (UTC) Steve Kirkby[reply]

At least one information: When the French-American Mid-Ocean Undersea Study took place in 1973/74 they found out that at one special point "crust on either side of the valley should be about 1 million years old". (Jean Francheteau u. a.: Transform Fault and Rift Valley from Bathyscaph and Diving Saucer, Science, New Series, Vol. 190, No. 4210 (Oct. 10, 1975), p.108) ----93.216.69.163 (talk) 15:15, 10 February 2012 (UTC)[reply]

material[edit]

the mid atlantic ridge is made out of basalt yh man —Preceding unsigned comment added by 90.213.161.20 (talk) 18:38, 2 October 2008 (UTC)[reply]

Co-ordinates[edit]

I don't really see the purpose of giving a single point location for a ca. 20,000 km long structure. Mikenorton (talk) 08:54, 9 September 2009 (UTC)[reply]

Agree - pointless, removed. Vsmith (talk) 12:58, 9 September 2009 (UTC)[reply]

Info missing (2)[edit]

From the earlier comment, it seems that there used to be a figure for how annual expansion much the ridge is causing, but it seems to have gone. Could somebody in the know insert the correct figures? I understand the figure is not constant along the length of the ridge, but it's why I came to this article. Regards Davidelit (Talk) 17:05, 13 March 2011 (UTC)[reply]

I've added an average rate for the ridge. Mikenorton (talk) 18:34, 13 March 2011 (UTC)[reply]

Elevation of the MAR[edit]

A recent edit added a value of 4000 m for the flank of the ridge, which I reverted as the source was actually referring to the Cayman Trough. However the values currently in the article are a bit meaningless - parts of the ridge are well below 3000 m and part of it (Iceland) is above sea level. I'm minded just to remove it altogether, as I can't yet find a source that gives that sort of information. Mikenorton (talk) 22:03, 1 February 2015 (UTC)[reply]

As those numbers reappeared, I've removed the sentence completely. That source contains little of value for this page. Mikenorton (talk) 18:55, 22 April 2015 (UTC)[reply]

HOW did Maury do the soundings?[edit]

Dear readers, I have been roaming books and wiki`s, but nowhere it is recorded HOW they sounded the depths of the ocean in the years 1845 to 1865, about. Did they have instruments? Or sink down a 5 mile cable with a heavy weight? Your answers will be very much appreciated! Greets, Gerard Rorik, Netherlands, retired ships mechanic cargo ships Nedlloyd. — Preceding unsigned comment added by 77.162.178.42 (talk) 20:48, 1 December 2018 (UTC)[reply]

Before echo sounding, depth sounding was carried out by "lead and line", so yes that would be rope with a heavy weight. See also Mariana_Trench#Measurements, which refers to measurement of more than 8 km (5 miles) by HMS Challenger in 1875 "using a weighted rope'. Mikenorton (talk) 22:44, 1 December 2018 (UTC)[reply]

Thanks a lot Mike Norton for you answer. Wel, that was quite a lot of work with those ropes. Greetings, Gerard Rorik, Netherlands. — Preceding unsigned comment added by 77.162.178.42 (talk) 16:04, 2 December 2018 (UTC)[reply]

inadequate[edit]

Im surprised how short this article is, for one of the most defining geological features on the planet. hope somebody can give this some tlc. prob not me, not my area of expertise at all. 2600:1700:5FA1:61B0:F48A:B59:79E7:2008 (talk) 02:57, 26 August 2020 (UTC)[reply]

identify the ridge on the map[edit]

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someone should identify the ridge on the map given at the top of the page. Something like.... featured in light blue in the middle of the atlantic ocean — Preceding unsigned comment added by 24.15.224.188 (talk) 09:15, 12 January 2022 (UTC)[reply]

Done. Thanks for reporting this. GeoWriter (talk) 16:58, 12 January 2022 (UTC)[reply]

Historical/Pagan relations[edit]

A large mountain range that stretches an incredible distance: Mid Atlantic ridge.

A snake that wraps its body around the entire world: Jormungandr

Has there been any insight or interest in checking out the potential relation that the old norse pagans might have had to the atlantic ridge? Especially considering it "starts" at Iceland which is the only country that speaks a very similar language to Old Norse in its modern day form, and Iceland had big relations with Viking history. Also, this is only the mid-Atlantic ridge, the full continuous thing stretches 65k km. It seems like a pretty decent coinky-dink that such a feature exists and is very "similar" to what was written in stuff like the Poetic Edda.

Also, what is the practice of associating religious stories to potential real life counterparts or making them practical? Like King Midas potentially being just a guy that was great at making money and greedy and experienced much sadness. 110.22.251.226 (talk) 15:19, 7 September 2023 (UTC)[reply]