{{For|the mission in Minecraft Dungeons|MCD:Basalt Deltas}}
{{Infobox biome
| title = Basalt Deltas
| image = Basalt Deltas.png
| imagesize =
| downfall = 0.0
| precipitation = No
| temperature = 2.0
| fogcolor = #685F70
| grasscolor = #BFB755
| foliagecolor = #AEA42A
| watercolor = {{color|#3F76E4}}
| structures = {{EnvLink|Nether fortress}}<br>{{EnvLink|Ruined portal}}
| features = {{EnvLink|Glowstone blob}}<br>{{EnvLink|Lava sea}}<br>{{EnvLink|Delta}}<br>{{EnvLink|Basalt columns}}
| blocks = {{BlockLink|Basalt}}<br>{{BlockLink|Blackstone}}<br>{{BlockLink|Magma Block}}<br>{{BlockLink|Lava}}<br>
}}
The '''basalt deltas''' is a volcanic [[biome]] found in [[the Nether]].

== Description ==
The basalt deltas is composed largely of [[basalt]] and [[blackstone]], and it features jagged terrain and [[delta]]s, shallow pools composed of lava and [[magma block]]s. Its fog is a dull lilac color, and ambient ash particles float through the air. Archipelagos with islands of different sizes can be found around the [[lava sea]]s nearby.

[[Nether fortress]]es and caves filled with [[nether quartz ore]] can be found here. Ore generates more commonly (to compensate for less [[netherrack]] to generate in).

[[Bastion remnant]]s do not generate here.

[[Magma cube]]s have a high spawn rate in this biome.

== Mobs ==
The following mobs are naturally spawned here：

{{Spawn table
|edition=Java
|creature=
{{Spawn row|Strider|weight=60|size=1-2}}
|monster=
{{Spawn row|Ghast|weight=40|size=1|note=Only 5% of spawn attempts succeed.}}
{{Spawn row|Magma Cube|weight=100|size=2-5}}
}}

{{Spawn table
|edition=bedrock
|monster=
{{Spawn row|Magma Cube|weight=100|size=2-5}}
{{Spawn row|Ghast|weight=40|size=1}}
|creature=
{{Spawn row|Strider|weight=20|size=2-4}}
}}

== Sounds ==
=== Music ===
{|class="wikitable sortable" style="width: 100%; text-align: center; font-size: smaller" data-description="Music tracks"
!'''Filename<br>in Minecraft'''
![[Gameplay]]
!'''Soundtrack Title'''
!Soundtrack
!class="unsortable" |Track preview
!Weight
|-
!so_below.ogg
|[[Soul Sand Valley]] and [[Basalt Deltas]]
|"So Below"
|{{sort||''[[Minecraft: Nether Update (Original Game Soundtrack)]]'' No. 3}}
|[[File:So below.ogg]]
|7
|-
!nether1.ogg
|[[The Nether]]
|"Concrete Halls"
|{{sort|B07|''[[Minecraft - Volume Beta]]'' No. 7}}
|[[File:Concrete halls.ogg]]
|1
|-
!nether2.ogg
|[[The Nether]]
|"Dead Voxel"
|{{sort|B03|''[[Minecraft - Volume Beta]]'' No. 3}}
|[[File:Dead voxel.ogg]]
|1
|-
!nether3.ogg
|[[The Nether]]
|"Warmth"
|{{sort|B11|''[[Minecraft - Volume Beta]]'' No. 11}}
|[[File:Warmth.ogg]]
|1
|-
!nether4.ogg
|[[The Nether]]
|"Ballad of the Cats"
|{{sort|B15|''[[Minecraft - Volume Beta]]'' No. 15}}
|[[File:Ballad of the Cats.ogg]]
|1
|}

=== Ambience ===
'''Nether ambience''' plays while the [[player]] is in [[the Nether]].

{| class="wikitable"
|+
!Name
!Sound
!Group
|-
|Basalt Deltas Ambience
|[[File:Basalt deltas ambience.ogg]]
| Loop
|-
|Basalt deltas active 1<br><small>(Unused)</small>
|[[File:Basalt deltas active1.ogg]]
| rowspan = 34 | Loop Additions
|-
|Basalt deltas active 2<br><small>(Unused)</small>
|[[File:Basalt deltas active2.ogg]]
|-
|Basalt deltas active 3<br><small>(Unused)</small>
|[[File:Basalt deltas active3.ogg]]
|-
|Basalt deltas active 4<br><small>(Unused)</small>
|[[File:Basalt deltas active4.ogg]]
|-
|Basalt Deltas Basalt Ground 1
|[[File:Basalt deltas basaltground1.ogg]]
|-
|Basalt Deltas Basalt Ground 2
|[[File:Basalt deltas basaltground2.ogg]]
|-
|Basalt Deltas Basalt Ground 3
|[[File:Basalt deltas basaltground3.ogg]]
|-
|Basalt Deltas Basalt Ground 4<br><small>(Unused)</small>
|[[File:Basalt deltas basaltground4.ogg]]
|-
|Basalt Deltas Click 1
|[[File:Basalt deltas click1.ogg]]
|-
|Basalt Deltas Click 2
|[[File:Basalt deltas click2.ogg]]
|-
|Basalt Deltas Click 3
|[[File:Basalt deltas click3.ogg]]
|-
|Basalt Deltas Click 4
|[[File:Basalt deltas click4.ogg]]
|-
|Basalt Deltas Click 5
|[[File:Basalt deltas click5.ogg]]
|-
|Basalt Deltas Click 6
|[[File:Basalt deltas click6.ogg]]
|-
|Basalt Deltas Click 7
|[[File:Basalt deltas click7.ogg]]
|-
|Basalt Deltas Click 8
|[[File:Basalt deltas click8.ogg]]
|-
|Basalt Deltas Debris 1
|[[File:Basalt deltas debris1.ogg]]
|-
|Basalt Deltas Debris 2
|[[File:Basalt deltas debris2.ogg]]
|-
|Basalt Deltas Debris 3
|[[File:Basalt deltas debris3.ogg]]
|-
|Basalt Deltas Heavy Click 1
|[[File:Basalt deltas heavy click1.ogg]]
|-
|Basalt Deltas Heavy Click 2
|[[File:Basalt deltas heavy click2.ogg]]
|-
|Basalt Deltas Long Debris 1
|[[File:Basalt deltas long debris1.ogg]]
|-
|Basalt Deltas Long Debris 2
|[[File:Basalt deltas long debris2.ogg]]
|-
|Basalt Deltas Plode 1
|[[File:Basalt deltas plode1.ogg]]
|-
|Basalt Deltas Plode 2
|[[File:Basalt deltas plode2.ogg]]
|-
|Basalt Deltas Plode 3
|[[File:Basalt deltas plode3.ogg]]
|-
|Basalt Deltas Twist 1
|[[File:Basalt deltas twist1.ogg]]
|-
|Basalt Deltas Twist 2
|[[File:Basalt deltas twist2.ogg]]
|-
|Basalt Deltas Twist 3
|[[File:Basalt deltas twist3.ogg]]
|-
|Basalt Deltas Twist 4
|[[File:Basalt deltas twist4.ogg]]
|-
|}

== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|shownumericids=1
|generatetranslationkeys=y
|displayname=Basalt Deltas
|spritetype=biome
|nameid=basalt_deltas
|id=173
|foot=1}}

{{edition|bedrock}}:
{{ID table
|shownumericids=1
|displayname=[No displayed name]
|spritename=basalt-deltas
|spritetype=biome
|nameid=basalt_deltas
|id=181
|foot=1}}

== History ==
{{HistoryTable
|{{HistoryLine|java}}
|{{HistoryLine||1.16|dev=20w15a|Added the basalt deltas.}}
|{{HistoryLine|||dev=20w16a|Increased the number of lava lakes on basalt deltas.}}
|{{HistoryLine|||dev=20w21a|[[Ancient debris]] and [[nether gold ore]] now generates more often.}}
|{{HistoryLine||1.18|dev=21w41a|The water fog color of basalt deltas changes from {{color|#423e42}} to {{color|#050533}}, though in vanilla nether there's no water.}}
|{{HistoryLine|bedrock}}
|{{HistoryLine||1.16.0|dev=beta 1.16.0.57|Added basalt deltas.}}
|{{HistoryLine||1.16.100|dev=beta 1.16.100.54|The ceiling of basalt deltas is now made out of [[basalt]], instead of [[netherrack]].}}
}}

== Issues ==
{{Issue list}}

== Gallery ==
=== Screenshots ===
<gallery>
Basalt Deltas - Typical View.png|Typical view.
Basalt Deltas.png|Floor view.
Netherfortressbasaltdelta.png|A [[nether fortress]] looked at from the floor of the deltas.
Basalt Deltas - Fortress.png|Another [[nether fortress]] overlooking the deltas.
Basalt Deltas - Valley.png|A valley within the deltas.
Basalt Deltas - Lava Ocean.png|Deltas above a lava ocean.
Basalt Deltas - Fortress (2).png|Fortress intersecting a lava ocean and more deltas.
Basalt deltas view.png|Basalt deltas hanging over a lava sea.
Basalt columns with many variations.png|Basalt columns in the air and on the ground.
Blackstone blob.png|Blackstone in a basalt deltas.
Basalt Delta Blocks.jpg|Some blocks placed in a basalt deltas.
Basalt Delta Fog.jpg|Fog in a basalt deltas.
Basalt Delta Terrain.jpg|Terrain in a basalt deltas.
Fancy Delta.jpg|[[Kai]] in a basalt delta holding [[shield]] with a [[banner]] and wearing [[smithing template|trimmed armor]].
BasaltDeltas.png|Basalt deltas.
Basalt Deltas MCD.png|A [[MCD:Basalt Deltas|Basalt Delta]] as it appears in [[Minecraft Dungeons]].
</gallery>

== External links ==
* [https://www.minecraft.net/en-us/article/around-block--basalt-deltas Around the Block: Basalt Deltas] – Minecraft.net on August 13, 2020

== Navigation ==
{{Navbox biomes|Nether}}

[[Category:Nether biomes]]

[[de:Basaltdeltas]]
[[es:Deltas de basalto]]
[[fr:Deltas de basalte]]
[[it:Delta di basalto]]
[[ja:玄武岩の三角州]]
[[ko:현무암 삼각주]]
[[lzh:黑堦石洲渚]]
[[pl:Bazaltowe delty]]
[[pt:Deltas de basalto]]
[[ru:Базальтовые дельты]]
[[th:สันดอนหินบะซอลต์]]
[[uk:Базальтові дельти]]
[[zh:玄武岩三角洲]]
