Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0004492Dwarf FortressContaminants/Spatterpublic2011-04-10 21:172015-01-08 08:39
Reporterlando242 
Assigned ToFootkerchief 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusresolvedResolutionduplicate 
PlatformPCOSWIndows 7OS Version7
Product Version0.31.25 
Target VersionFixed in Version 
Summary0004492: Muddy stone floor turns into soil floor after plants grow on it
DescriptionA well overflowed in my fortress and covered a small area of stone cavern floor (un-smoothed floor) with water. This area of floor then became a muddy silt loam cavern floor, prior to that is was made of chalk. Because it is now soil it can't be smoothed or engraved and has various underground plants growing on it periodically. Its also covered with moss.
Steps To ReproduceCover a rock cavern floor with water.
Additional InformationThis all happened after I had uncovered the carven layers but I don't know if thats a factor or not. Also the dwarves wont clean the area of mud at all. Maybe because its now soil? I have plenty of idlers and even made a meeting area on top of it but its all still muddied. Building something on top of it and then removing gets rid of the mud but its still a silt cavern floor at the end, not a chalk floor. Its in the middle of a chalk layer and about 2 levels below the lowest soil layer, so its not like theirs a layer of soil just below it either.
TagsNo tags attached.
Relationships
duplicate of 0001573confirmed Footkerchief Underground trees leave behind soil floors when cut down 
related to 0002013resolved Footkerchief Shrubs and underground trees grow on muddied smooth stone floors. 
related to 0002970resolved Footkerchief Dwarves will clean mud from farms, rendering them useless 
related to 0001370resolved Footkerchief Farm built on muddy chalk/bauxite/rubies, after mud dried it was all chalk 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2011-04-10 21:17lando242New Issue
2011-04-12 03:36lando242Note Added: 0017313
2011-04-12 11:51Granite26Note Added: 0017319
2011-04-12 12:08QuietustNote Added: 0017320
2011-04-12 18:44lando242Note Added: 0017328
2011-04-13 10:28hyndisNote Added: 0017338
2011-04-13 14:30FootkerchiefRelationship addedrelated to 0002013
2011-04-13 14:31FootkerchiefSummaryWater/mud changes stone floor into soil floor. => Muddy stone floor turns into soil floor after plants grow on it
2011-04-14 23:52lando242Note Added: 0017383
2014-01-21 18:57FootkerchiefRelationship addedrelated to 0002970
2014-07-16 08:03FootkerchiefRelationship addedrelated to 0001573
2014-08-13 11:29FootkerchiefRelationship addedrelated to 0001370
2014-12-31 08:21FootkerchiefRelationship replacedduplicate of 0001573
2014-12-31 08:21FootkerchiefStatusnew => resolved
2014-12-31 08:21FootkerchiefResolutionopen => duplicate
2014-12-31 08:21FootkerchiefAssigned To => Footkerchief
2015-01-05 07:05FootkerchiefStatusresolved => needs feedback
2015-01-05 07:05FootkerchiefResolutionduplicate => reopened
2015-01-05 07:05FootkerchiefRelationship replacedrelated to 0001573
2015-01-08 08:39FootkerchiefStatusneeds feedback => resolved
2015-01-08 08:39FootkerchiefResolutionreopened => duplicate
2015-01-08 08:39FootkerchiefRelationship replacedduplicate of 0001573

Notes
(0017313)
lando242   
2011-04-12 03:36   
I've since had another overflow incident in another part of the fortress but on the same layer. Oddly the chalk cavern floors remain chalk after being muddied. The only thing I can come up with to explain this difference is that the first incident involved the water passing through a soil layer and changing Z-levels. The well that overflowed was a few levels above the area that had the chalk floor transformed. The water spilled out of it and flooded a hallway than ran down some stairs and hit the chalk floor, turning it into soil.
(0017319)
Granite26   
2011-04-12 11:51   
This is intended behavior.
(0017320)
Quietust   
2011-04-12 12:08   
The pressure issue may be normal, but the fact that muddy stone is supporting the growth of subterranean "grass" which then turns the stone into soil is probably a bug. Incidentally, once it's turned into soil, try building a dirt road on top of it - it might turn it back into stone.
(0017328)
lando242   
2011-04-12 18:44   
So it seems that it doesn't change the stone into soil until something starts growing on it. Once that happens, smoothed or not, it changes from rock into soil.

@Granite26 Yeah, but its not quite right. The plants should be growing on the mud, which is just a surface coating. Changing the material type of the floor to soil in a bit much.

@Quietust Nope. I've tried both types of roads, floors and other construction and things like statues, it remains soil. Only think I've found that "fixes" it is coating it in lava and then hitting that with water and digging out the obsidian that it leaves behind. This of coarse makes its an obsidian floor instead of chalk but what can you do.
(0017338)
hyndis   
2011-04-13 10:28   
A dirt road will not work, but a paved road or constructed floors/walls will work.

Incidentally this will also reset mineral floors to the default stone type, so you can do this to "un-engrave" floors, and get rid of microcline floors.
(0017383)
lando242   
2011-04-14 23:52   
@hyndis I just tested this and it failed to work. The floor was originally chalk but became silt loam after being muddied and having something grow on it. After building a stone road, stone wall and stone floor on the same spot and removing them each time the ground remained silt loam and did not return to being chalk. It did become furrowed though.