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Difference between revisions of "40d:Sedimentary layer"

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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.
 
 
 
'''Sedimentary stone layers''' contain [[hematite]], [[limonite]], [[magnetite]], [[tetrahedrite]],  
 
'''Sedimentary stone layers''' contain [[hematite]], [[limonite]], [[magnetite]], [[tetrahedrite]],  
 
[[bituminous coal]], and [[lignite]].
 
[[bituminous coal]], and [[lignite]].
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Sedimentary layers are, on average, the most economically valuable of the five mineral 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).  Even if magma is present, only sedimentary layers contain [[bauxite]], the only rock and [[mechanism]] (other than [[Raw_adamantine|Hidden Fun Stuff]]) which can withstand the heat of magma.  They are much richer in [[iron]] [[ores]] than other rock formations.  Several sedimentary rocks - [[dolomite]], [[chalk]], and [[limestone]] - are [[flux]]es, required to make steel and also of double value when turned into [[crafts|trade goods]] or [[furniture]].
 
Sedimentary layers are, on average, the most economically valuable of the five mineral 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).  Even if magma is present, only sedimentary layers contain [[bauxite]], the only rock and [[mechanism]] (other than [[Raw_adamantine|Hidden Fun Stuff]]) which can withstand the heat of magma.  They are much richer in [[iron]] [[ores]] than other rock formations.  Several sedimentary rocks - [[dolomite]], [[chalk]], and [[limestone]] - are [[flux]]es, required to make steel and also of double value when turned into [[crafts|trade goods]] or [[furniture]].
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(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. This is not true for Dwarf Fortress.)
  
 
==Types of sedimentary layers==
 
==Types of sedimentary layers==

Revision as of 22:44, 19 August 2009

Sedimentary stone layers contain hematite, limonite, magnetite, tetrahedrite, bituminous coal, and lignite.

Sandstone, siltstone, mudstone, shale, claystone, rock salt, limestone, conglomerate, dolomite, flint, chert, and chalk layers are sedimentary.

The name of a sedimentary layer appears in a lighter shade on the embark menu.

Sedimentary layers are, on average, the most economically valuable of the five mineral 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 trees). Even if magma is present, only sedimentary layers contain bauxite, the only rock and mechanism (other than Hidden Fun Stuff) which can withstand the heat of magma. They are much richer in iron ores than other rock formations. Several sedimentary rocks - dolomite, chalk, and limestone - are fluxes, required to make steel and also of double value when turned into trade goods or furniture.

(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. This is not true for Dwarf Fortress.)

Types of sedimentary layers

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Metal ores

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Gems

Ornamental

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Semi-precious

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Other stone

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