v0.31 Talk:Volcano

I'd just like to note some differences between 40d volcanos and the new ones. From what I've seen, they have fixed designs as opposed to random shifting patterns as you go down the z axis and act more like pipes that were lucky enough to reach the surface during worldgen. The last one I embarked on actually protruded out of the ground for 4 z axis' sort of like a chimney http://i63.photobucket.com/albums/h133/Radicalaces/chimney.png?t=1273214099 --radical 07:12, 7 May 2010 (EST)

I'm not sure if this is within the scope of the article, but something I've noted after a -large- amount of volcano-hunting is that the only way to get sedimentary rock on an embark tile with a volcano is for there to also be a brook in the area. Probably needs some independent confirmation, but after probably 200-250 medium maps checked, I'm pretty confident in my analysis. 24.35.61.81 00:59, 27 June 2010 (UTC)

Which, y'know, kinda makes sense based on the geological processes behind volcanoes and sedimentary rocks. That is, volcanoes form igneous rock around them, bringing the temperature and pressure up on the surrounding rock and converting it to metamorphic. So the presence of a brook would indicate that the volcano is dormant enough for water flows to create channels in the area, and also dormant enough that sedimentary rock (and not just plain sediment, or soil) could form and continue to exist. Just to be clear: when you say "on an embark tile with a volcano", you ARE talking about a 1x1 region on the Local map of the Embark screen? And not the 4x4 region which is the usual embark site? --DeMatt 07:03, 27 June 2010 (UTC)