Talk:Galápagos Rise

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Ambiguity

re: the other "Galapagos Rise"

At this time, just want to make notice that some scientists (geophysicists, etc.) give the name "Galapagos Rise" to another ocean floor feature, near, but as far as I can tell in no way related to, the Galapagos Rise described in this article. It is an area of elevation within the Nazca Plate "located between 13° S, 95.5° W and 9.5° S, 94° W." (http://www.geophysics.zmaw.de/index.php?id=59). This may be why some websites seem to avoid the term "ridge" or "rise" for the area described in this article(e.g., "Galapagos Spreading Centre"), although a number of I think knowledgeable if not authoritative (i.e., authored by geo-scientists) websites and web-posted abstracts also refer to the area of this article as the "Galapagos Rise". (Hopefully none of these scientists use the same name for both these areas). Also, I first got on to this because my Replogle "World Ocean" series globe puts the Galapagos Rise at this alternate location/definition, as well as my old National Geographic Atlas "Pacific Ocean Floor" map pages. I'm not saying anything in the article is wrong, but I think the problem is evident. I don't know how to generally, nor how Wikipedia would, deal with such authoritative ambiguity.

John McDonald 2006.08.21 6:10pm

Hess Deep

In off-wiki (following links here) pages, the Hess Deep is discussed (e.g. a December 2002 Columbia University Earth Institute News article article, with a map, "Columbia University Researchers Find Key to the Formation of New Seafloor Spreading Centers") but I've found no mention of it on Wikipedia. — Athænara ✉ 08:12, 7 February 2007 (UTC)[reply]

Galapagos spreading centre

The boundary between the Cocos and Nazca plates is generally known as the "Cocos–Nazca spreading system" - see Peirce et al. (2023). The western end of the system is the Galapagos spreading centre, extending from close to the East Pacific Rise as far as the Inca Fracture Zone. It then proceeds to its junction with the southeastern end of the Middle America Trench via a set of short ridges (the Ecuador and Costa Rica rifts) offset by longer fracture zones (the Ecuador and Panama fracture zones). The current content of this page is about the Cocos–Nazca spreading system. The Galapagos Rise is in fact an extinct spreading centre now within the northwestern part of the Nazca plate, as shown here. There is quite a lot written about the Galapagos rise, so I think that we should keep this page, just with different content.

New pages on the overall Cocos–Nazca spreading centre and the more specific Galápagos spreading centre are I think necessary. Mikenorton (talk) 20:48, 3 December 2024 (UTC)[reply]

I've rewritten this article to match the sources (more to come on its history and geometry) and created ~~one~~ both of the new articles (which also need expanding). Mikenorton (talk) 11:05, 8 December 2024 (UTC)[reply]

"Tectonics" section heading

@ChaseKiwi: - I originally called this section "History", for which I have a moderately strong preference, although "Development" might also work. As this is a completely inactive feature, either of these seems more appropriate than "Tectonics", which to me implies that the feature is currently active, although I'm not entirely sure why I feel that way. Mikenorton (talk) 17:40, 16 December 2024 (UTC)[reply]