Codex > Lyra's Song > Biological and Geological > Geology and Anomalies > Fumarole
Fumaroles are gaps in a planet's crust through which gases and steam are emitted. The ejected material often accumulates around the opening
Sulphur Dioxide Fumarole
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A surface opening that emits high-pressure gas and minerals, found on terrestrial planets with sulphur dioxide magma.
Water Fumarole
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A surface opening that emits high-pressure gas and minerals, found on terrestrial planets with water geysers.
Silicate Vapour Fumarole
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A surface opening that emits high-pressure gas and minerals, found on terrestrial planets with silicate vapour geysers.
Carbon Dioxide Fumarole
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