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[ivze]

That would be much !!FUN!!.

Magma is quite unrealistic in game. Imagine: you have a high volcano pillar of magma, and you still can safely dig out a tunnel to magma far below. If it was water, you would flood the fortress from below!

Apart from that, it's possible to fill 1x1x1 pool of magma, and it will stay hot for unlimited amount of time. This makes me imagine that magma has nuclear reaction going in it.

Ideas:
1) Magma should have pressure. Magma should be pressed out of the magma sea so that it goes up to the surface once a proper tube is dug out, even if there are no volcanoes.
2) Once disconnected from the SMR bed (no path or too long path within magma body), magma should cool into obsidian after some time.

Advantages:
1) !!FUN!! with magma-flooding your fortress.
2) Automatic volcano refill
3) Automatic volcano formation atop an artificial long tube to the magma sea
4) No more forge cheats with collecting some magma in reservoirs and keeping safe from magma critters.

Disadvantages:
1) Game LAGS are very likely.

What do you think?

[ohgoditburns]

You can already pressurize magma with screw pumps.

Also, magma forge buildings only require their blocking squares to have open access to magma. Since these squares block, you're always safe from magma critters anyway.

Even if magma were naturally pressurized, using current mechanics, you could depressurize it by digging diagonally.

[Noodz]

While "realism" and "unrealism" are words one should use careful when around games, fully pressurized magma would be quite unrealistic as well. Real world magma is a non-newtonian fluid with a huge range of possible viscosities, and it's not absurd to assume it behaves as a very thick gel.

It's also unrealistic to assume that underground magma would always erupt to the surface when given the opportunity. Pressurized magma is visible on sites with volcanism, but afaik, on other places with a more stable geology, it's possible for it to have a gauge pressure of zero.

I am happy with the magma properties as they are right now.

[ivze]

It's also unrealistic to assume that underground magma would always erupt to the surface when given the opportunity. Pressurized magma is visible on sites with volcanism, but afaik, on other places with a more stable geology, it's possible for it to have a gauge pressure of zero.

So if we make (theoretically) a hole 100 m in diameter and some kilometers deep IRL, magma won't come out? =)

[Daetrin]

There's a seven mile deep hole in Russia or some crazy depth like that. It gets to be several hundred degrees but there's no danger of a magma geyser.

[Samoorai]

Well, it would save me about 150 screw pumps, but what would happen to my in-fortress decorative magmafall? I only wish a 1/7 tile of magma didn't evaporate so fast, especially when it's above a 7/7 tile of magma.

[ivze]

Russian drilling project: http://en.wikipedia.org/wiki/Kola_Superdeep_Borehole
Drilling was stopped as temperature reached 180°C: the drill head efficiency started to decrease as temperature grew up. No magma was reached, of cause.

[Oliolli]

Huh. Isn't warm stone in DF around 42°?

[ivze]

Yes, the wiki says it is =) You mean the answer to question of Life for that humble peasant with a pick, don't you

[The Master]

the wiki also said that the drill they opened up

Spoiler (click to show/hide)

hell

IRL. 

[Necro910]

I think that every fortress ever made would spontaneously combust, then solidify.

[Urist Da Vinci]

http://www.cst.net/geoscience/oil-business/96-geothermal-exploration-in-iceland-encounters-magma-flowing-into-wellbore-

See linked article. 2.1 km (6900 ft) depth. They did drill into a magma tube, and then turned it into a geothermal power plant. Dwarfy.

[ivze]

http://www.cst.net/geoscience/oil-business/96-geothermal-exploration-in-iceland-encounters-magma-flowing-into-wellbore-

See linked article. 2.1 km (6900 ft) depth. They did drill into a magma tube, and then turned it into a geothermal power plant. Dwarfy.

It's nice to call a real world project Dwarfy!
Quite an awesome project that is. As I can see, real world magma, penetrated at depth of 2.1 km, didn't rise much: some less than 10 meters. That's been a place of sleeping volcano, however. And the magma must have cooled into stone, what has stopped it's propagation along the drill hole.

I think that every fortress ever made would spontaneously combust, then solidify.

That would be a HUGE IMPROVEMENT for our game! That's how we all want it to be. We want more "dig a wrong tile -> everything gets ..." possibilities!

[Necro910]

http://www.cst.net/geoscience/oil-business/96-geothermal-exploration-in-iceland-encounters-magma-flowing-into-wellbore-

See linked article. 2.1 km (6900 ft) depth. They did drill into a magma tube, and then turned it into a geothermal power plant. Dwarfy.

It's nice to call a real world project Dwarfy!
Quite an awesome project that is. As I can see, real world magma, penetrated at depth of 2.1 km, didn't rise much: some less than 10 meters. That's been a place of sleeping volcano, however. And the magma must have cooled into stone, what has stopped it's propagation along the drill hole.

I think that every fortress ever made would spontaneously combust, then solidify.

That would be a HUGE IMPROVEMENT for our game! That's how we all want it to be. We want more "dig a wrong tile -> everything gets ..." possibilities!

When Toady One updates...

Noone's magma supplies shall be safe. All your forges are belong to us.

[GreatWyrmGold]

There is a suggestion subforum for a reason. Also, search Google for "Lava Is Boiling Kool-Aid" and note how it is stated as not being like IRL. WARNING: Do not visit Tv Tropes without a lot of free time. Di not use while operating heavy machinery. Not responsible for lost time and/or jobs from reading too much Tv Tropes and/or failing to go to work due to aforementioned.