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Editing v0.31:Magma
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{{av}}{{Quality|Exceptional|21:13, 6 July 2010 (UTC)}} | {{av}}{{Quality|Exceptional|21:13, 6 July 2010 (UTC)}} | ||
− | '''Magma''' is a red-hot | + | '''Magma''' is a red-hot {{l|flow|fluid}} that wells up from deep within the earth - but not too deep to be found by dwarves. Magma that is above the ground is called '''Lava''' but is still the same exact substance. Magma is very [[fun]]. |
− | Magma serves as an energy source, powering | + | Magma serves as an energy source, powering {{L|magma smelter}}s, {{L|magma forge}}s, {{L|magma glass furnace}}s, and {{L|magma kiln}}s. Magma is ''extremely'' hot which can lead to a lot of {{L|fun}}. In the current version magma seems a bit slower to burn things. Workers that dig into a magma reservoir are not instantly killed as the magma touches them and can often scramble to safety{{verify}} as long as they are not fully immersed in 7/7 magma. It's worth noting that magma never seems to blink with {{l|flow}} now either. |
− | The list of materials that are ''' | + | The list of materials that are '''{{l|magma-safe}}''' has been expanded considerably in this version. Magma never cools, but can {{L|evaporation|evaporate}} if left at a depth of 1/7 for long enough. When magma is mixed with water it forms {{L|obsidian}}. Note that magma located above {{L|semi-molten rock}} will be listed as a Magma Flow and cannot be cooled into {{L|Obsidian}}. |
− | + | ==Magma Sea== | |
+ | The '''{{L|Magma sea}}''' is located at the bottom of every map, forming an (almost) impenetrable barrier. It also provides a great source of magma. {{l|Semi-molten rock}} can also be found around the magma sea, and cannot be dug through. | ||
− | == Bringing Magma Up == | + | === Bringing Magma Up === |
− | + | Pumping magma up from the magma sea via a conventional {{L|pump|pump stack}} is a lot of work, requiring hundreds of pumps and vast amounts of power. It is possible to do a lot less work through the "piston method", a clever abuse of {{L|cave-in}} {{L|physics}}. The basic principle involves channelling out an area around a huge stone pillar, hundreds of z-levels tall, which will become the "piston" that drives magma to the top. Rest the piston on a single support, then carve out a tank at its base which will be filled with magma pumped from the magma sea. ('''Beware:''' building the piston directly over the magma sea will '''NOT''' work!) Once the tank has been filled, drop the piston by removing its support. Liquids displaced by a cave-in will "teleport" straight up to the nearest available space; here, the nearest available space will be the catchment area you thoughtfully prepared earlier atop the piston. A full discussion of this trick, including how to make the piston reusable, can be found in [http://www.bay12forums.com/smf/index.php?topic=59894.0 this forum thread]. | |
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− | Pumping magma up from the magma sea via a conventional | ||
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==Magma pools== | ==Magma pools== | ||
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==Volcanoes== | ==Volcanoes== | ||
− | + | {{l|volcano|Volcanoes}} can be found where magma extends all the way to the surface. Volcanoes are an endless source of magma so they will always refill themselves. | |
==Properties of magma== | ==Properties of magma== | ||
− | Magma behaves the same way as water with the exception of not being affected by | + | Magma behaves the same way as water with the exception of not being affected by {{l|pressure}}, unless pressurized by a {{l|pump}}, and apparently not showing {{l|flow}}. Magma will turn into {{l|obsidian}}<sup>1</sup> if it touches {{l|water}}. In the game, magma's temperature is 12,000 (2,032°F, or about 1,111°C). See the list of '''{{l|magma-safe}}''' materials for more information on what can (or cannot) be safely submerged in magma. |
Tiles directly adjacent to magma will be heated to a temperature of 10,075 (107°F, or about 42°C), causing revealed unmined tiles to flash with {{Tile|☼|6:4:1}} when placing digging designations and causing unrevealed mining-designated tiles to cancel their designation (with a "warm stone" warning) once they are revealed. | Tiles directly adjacent to magma will be heated to a temperature of 10,075 (107°F, or about 42°C), causing revealed unmined tiles to flash with {{Tile|☼|6:4:1}} when placing digging designations and causing unrevealed mining-designated tiles to cancel their designation (with a "warm stone" warning) once they are revealed. | ||
− | <small><sup>1</sup> - | + | <small><sup>1</sup> - the rock that is used when magma mixes with water is the first rock encountered to have the [LAVA] tag ''during worldgen''.</small> |
==Dangers of magma== | ==Dangers of magma== | ||
− | Magma is not immediately fatal when first touched. It is dangerous to stand in magma, but dwarves will generally only suffer minor burns when running from a flow. Most creatures can survive standing on even a completely filled magma tile for a single step, but any more and they will likely die. | + | Magma is not immediately fatal when first touched. It is dangerous to stand in magma, but dwarves will generally only suffer minor burns when running from a flow. Most creatures can survive standing on even a completely filled magma tile for a single step, but any more and they will likely die. |
Unlike how waterfalls create mist magmafalls create no magma mist, yet if some debris from a [[cave-in]] lands in some magma a deadly cloud of [[magma mist]] is released. | Unlike how waterfalls create mist magmafalls create no magma mist, yet if some debris from a [[cave-in]] lands in some magma a deadly cloud of [[magma mist]] is released. | ||
{{Category|Physics}} | {{Category|Physics}} | ||
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