Talk:Q8072

I might be missing something important here, but volcanoes are not instances of alphabets. So I guess that should be deleted... [Just checking to make sure I'm not missing something here]

volcano description

I'd like to change the description of a volcano from "geographical feature" to "a natural, surface vent or fissure usually in a mountainous form". --Marshallsumter (talk) 18:15, 21 July 2016 (UTC)

I don't see an issue, so I just did it. --Izno (talk) 18:35, 21 July 2016 (UTC)

Are all volcanoes mountains ?

Hi y'all,

@RXerself: added the statements volcano (Q8072)subclass of (P279)mountain (Q8502) but 1. a lot of items about volcanoes have both the separated values volcano (Q8072) and mountain (Q8502) (which is redundant right now) and 2. I'm not entirely sure that all volcanoes are really moutains (but maybe it also depends on the language/culture).

Obvioulsy, most are but are they *all*? if not, this should not be a subclass and the data should be in an other property or at least should have a qualifier (like sourcing circumstances (P1480) ?)

Also @Lyokoï:

User:Tobias1984 User:PePeEfe User:Trilotat User:Daniel Mietchen Tris T7 ^{TT me} User:99of9 User:Romaine Middle river exports (talk) 16:56, 24 June 2022 (UTC) User:Wallacegromit1 Your name ;) ...

Notified participants of WikiProject Geology

Cheers, VIGNERON (talk) 18:42, 9 November 2021 (UTC)

• I'm not a geologist or geographer, but I'd say not always. Here's a query of volcanoes with an elevation between 0 and 100m: https://w.wiki/4MsP. Perhaps a good example is Doon Hill (Q17177343) which is not a mountain (Q8502) but merely a hill (Q54050). --99of9 (talk) 22:43, 9 November 2021 (UTC)
  • First: looking just at the elevation can be problematic, because comparing it with sea level is tricky and not representative for the actual height of a volcano from lowest level to top.
  • There are two difficulties with the question if a volcano is a mountain, but I can say that many people do consider a (common) volcano as a mountain. First the question what is seen as a volcano, and second what is seen as mountain. At first sight these two are obvious, but in practise not always. To answer first: most volcano types are mountains, for example: stratovolcano (Q169358), cinder cone (Q1806785), caldera (Q159954). To answer the second: a mountain is often considered to be higher than a hill and reaching out high in the sky. But what if a mountain is part of a mid-ocean ridge (Q104698), it is still a mountain but not having a significant height above sea level. Or even more problematic: an underground mountain and volcano: Zuidwal volcano (Q2586153). But a fissure vent (Q2143039) is commonly not a mountain, but it is a volcano. To conclude: not every volcano is a mountain, but many are a mountain. Romaine (talk) 05:39, 11 November 2021 (UTC)
    • I will add some things :
      1. In my « Dictionnaire de géologie » (Dictionary of geology) (Foucault et Raoult, 2005), they define volcano as a « relief » and not a mountain.
      2. There is lots of eroded volcanoes, they haven’t relief.
      3. There is volcano without lava like cryovolcanoes or mud volcanoes.
      4. Volcanoes in others planets and moons have big diversity.
    • I think we have to take these things into account. --Lyokoï (talk) 16:58, 11 November 2021 (UTC)

Instance of <volcanic landform>

@W like wiki: you moved volcanic landform (Q29025902) from "subclass of" statement to "instance of" (diff). I don't think this is right because "volcanic landform" class is not a metaclass. Both "volcanic landform" and mountain (Q8502) are set as subclasses of (subclasses of) landform (Q271669) and geographical feature (Q618123), and so now this class here is oddly set as both instance and subclass of the same parent classes. I noticed this because for some reason you also added respective remark "and an instance of volcanic landform" in P31 property description (diff). 2001:7D0:81DB:1480:8076:72C3:93B9:6AD6 08:26, 13 September 2023 (UTC)