Young basalt maar (and sister Little Soda Lake) on the Carson Sink floor NW of Fallon — one of Nevada's clearest Holocene phreatomagmatic craters. USGS classifies the pair as maars younger than ~6,000 years, erupted through Lake Lahontan sediments; alkaline meromictic lake chemistry is well studied.
Field facts
| Region | Churchill County, NV |
|---|---|
| Coordinates | 39.5250, -118.8781 |
| Type | Basalt maars (Soda + Little Soda) |
| Age | Holocene (<~6 ka) |
| Access | Public roads NW of Fallon |
| Note | Geothermal plant on NE flank |
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