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Difference between revisions of "40d:Igneous extrusive layer"
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| − | '''Igneous extrusive stone layers''' are formed from [[ | + | '''Igneous extrusive stone layers''' are formed from [[andesite]], [[basalt]], [[felsite]], [[obsidian]], and [[rhyolite]]. Of these 5, all but obsidian are absolutely identical within the game (distinguished only by their names and their un-mined presentation on the map.) |
| − | They can contain [[ | + | They can contain [[copper]] ore, [[galena]] (for [[lead]] & [[silver]]), [[gold]], [[hematite]] (for [[iron]]), [[native aluminum]] and/or [[tetrahedrite]] (for copper and possibly silver), as well as a varying spectrum of [[gem]]s. |
Their name appears dark gray on the embark menu. They also indicate a good chance of [[magma]] being present nearby in some form or another. | Their name appears dark gray on the embark menu. They also indicate a good chance of [[magma]] being present nearby in some form or another. | ||
| − | (In real world geology, igneous extrusive [[stone]] is formed by lava solidification on the surface, as opposed to [[ | + | |
| + | :''(In real world geology, igneous extrusive [[stone]] is formed by lava solidification on the surface, as opposed to [[igneous intrusive layer|igneous intrusive]] stone which forms ''below'' the surface. This is not true for Dwarf Fortress.)'' | ||
[[Category:Stone Layers]] | [[Category:Stone Layers]] | ||
Revision as of 20:12, 30 September 2009
Igneous extrusive stone layers are formed from andesite, basalt, felsite, obsidian, and rhyolite. Of these 5, all but obsidian are absolutely identical within the game (distinguished only by their names and their un-mined presentation on the map.)
They can contain copper ore, galena (for lead & silver), gold, hematite (for iron), native aluminum and/or tetrahedrite (for copper and possibly silver), as well as a varying spectrum of gems.
Their name appears dark gray on the embark menu. They also indicate a good chance of magma being present nearby in some form or another.
- (In real world geology, igneous extrusive stone is formed by lava solidification on the surface, as opposed to igneous intrusive stone which forms below the surface. This is not true for Dwarf Fortress.)