v0.31 Talk:Volcano

Differences from 40d

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)

Rock layers

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)

Aside from that, in my pseudo smartguy terms, volcanoes are upwellings of "new" rock, and are as geologically different from ancient coal-bearing rock (coal is a fossil fuel y'know) as you can possibly have on the same planet. Although in the current version, if the embark screen does not list sedimentary rock as one of the layers for the selected biome, you aren't going to find it anywhere in the map no matter how large it is. I get the impression this is more a game mechanic thing to balance the relative advantages of playing in a volcano area (huge amounts of high value ores and obsidian, easy access to magma with low/no risk).FleshForge 01:42, 7 August 2010 (UTC)

By the way a pretty simple way to force a lot of volcanoes for your map is just to set "Minimum Volcanoes" option in the world gen parameters to 100 or so, on a medium map this takes little time to roll up and can be previewed before going through the history iterations - hit a key and scroll around the map and see if it looks promising, and abort if it doesn't, continue if it does. --FleshForge 01:45, 7 August 2010 (UTC)

It appears to be simply simple impossible to get coal on a volcano map regardless of what rock layers are shown on the embark screen. On the other hand, you can make charcoal from burning wood, so the easy access to magma is still a pretty great advantage and you can still make steel eventually. !!!!

Volcano - magma sea connection and exploration

After some playing and a bit of my habit from 40d days, when plugging up a volcano with water, i found out that crashing tiles dropping down into it will go down to the magma sea and act as "explorers" to uncover tiles. i'm unsure whether its an isolated case or a common occurence, so if anyone could confirm, i'd be grateful - Vrga 06:45, 3 July 2010 (UTC)

Volcano and undeground lakes

I embarked at volcano area at freezing biome, and got problem with absence of water. The only underground lake was found at the far edge of second cavern - first was completely dry. Is it volcano influence or just random? On maps without volcano each cavern had it's lake, sometimes several of them.Peregarrett 06:39, 30 July 2010 (UTC)