A geologist discovers this vent in the ground with steam rising from it. After observing it for a few minutes, some water erupts from the vent. The water is extremely hot.Which feature has this geologist found?

A geyser is a hot spring that periodically erupts, shooting hot water and steam from an opening in the ground. The steam and extremely hot water erupting after a short wait are characteristic of a geyser. A spring generally flows without these periodic eruptions.

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