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Difference between revisions of "Sedimentary layer"

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'''Sedimentary stone layers''' contain [[hematite]], [[limonite]], [[magnetite]], [[tetrahedrite]],  
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[[bituminous coal]], [[lignite]], and [[gypsum]].
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[[File:Layers of sedimentary rock in Makhtesh Ramon (50749).jpg|thumb|310px|right|Layers of sedimentary rock in Makhtesh Ramon.]]
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'''Sedimentary''' [[stone layers]] contain [[hematite]], [[limonite]], [[magnetite]], [[tetrahedrite]], [[bituminous coal]], [[lignite]], and [[gypsum]]. [[Chalk]]*, [[chert]]**, [[claystone]], [[conglomerate]], [[dolomite]]*/**, [[limestone]]*, [[mudstone]], [[rock salt]], [[sandstone]]**, [[siltstone]] and [[shale]] layers are sedimentary.
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:<sup>(* These also function as [[flux]].  **These are also [[magma-safe]].)</sup>
  
[[Chalk]]*, [[chert]]**, [[claystone]], [[conglomerate]], [[dolomite]]*, [[limestone]]*, [[mudstone]], [[rock salt]], [[sandstone]]**, [[siltstone]] and [[shale]] layers are sedimentary.
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Sedimentary layers are, on average, the most economically valuable of the four [[stone layers]].  They are your only source of [[bituminous coal]] and [[lignite]], vital for fueling non-[[magma]] forges and for the [[coke]] that [[steel]]-making requires (especially if you lack [[tree]]s).  They are much richer in [[iron]] [[ore]]s than other rock formations.  Several sedimentary rocks - [[dolomite]], [[chalk]], and [[limestone]] - are [[flux]]es, required for [[steel]]-making and also being twice as valuable as normal stone, making them useful for [[crafts|trade goods]] or [[furniture]].
:<sup>(* These also function as [[flux]]. **These are also [[magma-safe]].)</sup>
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Sedimentary layers can be tricky to locate - if you are starting off, and you want access to an embark area with sedimentary layers, use the "Find Desirable Location" function before embark and set your parameters to include sites with [[flux]] stone. Since most flux stones are found in sedimentary layers, this will increase your chances that a suitable site will have sedimentary rock near the surface. Be careful when using the "Find Desirable Location" function, as it will sometimes list green sites that have flux stone but not indicate that it does, actually, have flux stone. To find iron ores, search for a location that has flux stone, medium elevation, and either high or low drainage. On large maps, the ore is sometimes located near mountains and major rivers in large (min ~10x10) chunks.
  
Sedimentary layers are, on average, the most economically valuable of the four [[stone layers]].  They are your only source of [[bituminous coal]] and [[lignite]], vital for fueling non-[[magma]] forges and for the [[coke]] [[steel]]-making requires (especially if you lack [[tree]]s).  They are much richer in [[iron]] [[ore]]s than other rock formations.  Several sedimentary rocks - [[dolomite]], [[chalk]], and [[limestone]] - are [[flux]]es, required for [[steel]]-making and also being twice as valuable as normal stone, making them useful for [[crafts|trade goods]] or [[furniture]].
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Alternatively, a [[mountain]] biome that has an [[aquifer]] is guaranteed to be sedimentary as well, due to mountains lacking soil, which means the aquifer must be in sedimentary layers.
  
Sedimentary layers can be tricky to locate. If you are starting off and you want access to an embark area with sedimentary layers, use the "Find Desirable Location" function before embark and set your parameters to include sites with [[flux]] stone. Since most flux stones are found in sedimentary layers, this will increase your chances that a suitable site will have sedimentary rock near the surface. Be careful when using the "Find Desirable Location" function as it will sometimes list green sites that have flux stone but it will not indicate that it does, actually, have flux stone. To find the ores of iron, search for a location that has shallow metals, flux stone, medium elevation, and either high or low drainage, the results are narrowed down and the ore is located some of the time near mountains and major rivers in large(min ~10x10) chunks. Civilizations during world setup usually spawn near iron ore.
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If your [[Embark#Changing_Views|embark civilization]] has access to sedimentary layer stones [[Embark#Prepare_Carefully|when preparing]], it is likely one or more of the biomes in their sites overlap a biome containing it.
  
(In real world geology, sedimentary [[stone]] is formed by sediment. The sediment collects in constantly growing heaps and the pressure at the bottom eventually forms the sediment into stone.)
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(In real-world geology, sedimentary [[stone]] is formed by sediment, which gets carried away by rivers and deposited in constantly-growing heaps, where the pressure at the bottom eventually forms the sediment into stone.)
  
 
==Sedimentary layers==
 
==Sedimentary layers==
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==Stone found in sedimentary layers==
 
==Stone found in sedimentary layers==
 
{{Layerlookup/stones|SEDIMENTARY}}
 
{{Layerlookup/stones|SEDIMENTARY}}
*[[DF2014:Cassiterite|Cassiterite]]
 
  
 
==Gems  found in sedimentary layers==
 
==Gems  found in sedimentary layers==
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{{stones}}
 
{{stones}}
 
{{Category|Stone Layers}}
 
{{Category|Stone Layers}}
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[[ru:Sedimentary layer]]

Latest revision as of 19:14, 1 September 2024

This article is about the current version of DF.
Note that some content may still need to be updated.

Layers of sedimentary rock in Makhtesh Ramon.

Sedimentary stone layers contain hematite, limonite, magnetite, tetrahedrite, bituminous coal, lignite, and gypsum. Chalk*, chert**, claystone, conglomerate, dolomite*/**, limestone*, mudstone, rock salt, sandstone**, siltstone and shale layers are sedimentary.

(* These also function as flux. **These are also magma-safe.)

Sedimentary layers are, on average, the most economically valuable of the four stone layers. They are your only source of bituminous coal and lignite, vital for fueling non-magma forges and for the coke that steel-making requires (especially if you lack trees). They are much richer in iron ores than other rock formations. Several sedimentary rocks - dolomite, chalk, and limestone - are fluxes, required for steel-making and also being twice as valuable as normal stone, making them useful for trade goods or furniture.

Sedimentary layers can be tricky to locate - if you are starting off, and you want access to an embark area with sedimentary layers, use the "Find Desirable Location" function before embark and set your parameters to include sites with flux stone. Since most flux stones are found in sedimentary layers, this will increase your chances that a suitable site will have sedimentary rock near the surface. Be careful when using the "Find Desirable Location" function, as it will sometimes list green sites that have flux stone but not indicate that it does, actually, have flux stone. To find iron ores, search for a location that has flux stone, medium elevation, and either high or low drainage. On large maps, the ore is sometimes located near mountains and major rivers in large (min ~10x10) chunks.

Alternatively, a mountain biome that has an aquifer is guaranteed to be sedimentary as well, due to mountains lacking soil, which means the aquifer must be in sedimentary layers.

If your embark civilization has access to sedimentary layer stones when preparing, it is likely one or more of the biomes in their sites overlap a biome containing it.

(In real-world geology, sedimentary stone is formed by sediment, which gets carried away by rivers and deposited in constantly-growing heaps, where the pressure at the bottom eventually forms the sediment into stone.)

Sedimentary layers[edit]

Stone found in sedimentary layers[edit]

Gems found in sedimentary layers[edit]

* See also: stone found everywhere

Sedimentary
Igneous
Intrusive
Extrusive
Metamorphic
Ore
Economic
Other