Global Volcanism Program | Image GVP-10004
Hydrothermal alteration is extensive within the valley walls of a thermal area near the summit of Cerro Evermann. Gases rise from fumaroles in this 1998 view. The largest fumarolic vent is located at the head of a large barranca NE of the summit. During a 1957 visit by Mooser and Bryan, temperatures of 65-97°C were measured. Similar temperatures ranging from 61-101°C were measured in 1993.
Photo by Martha Marin, 1998 (Mexican Navy).
This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.
Galleries: Geothermal Features
Keywords: hydrothermal alteration | geothermal | fumarole | degassing | emissions
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