Global Volcanism Program | Image GVP-06223
The low hill covered by fields (left center) is Pico do Gaspar lava dome, surrounded by a low tuff cone. The Lagoa das Furnas lies to the west (right) and the eastern caldera wall can be seen in the left background. The Pico do Gaspar dome has been the site of two eruptions, including in about 1439-1443 CE; descriptions suggest an initial explosive phase producing ash, followed by lava dome formation.
Photo by Rick Wunderman, 1997 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.
Keywords: lava dome