A geologist examines lava flows west of the 4.5-km-wide summit caldera of Mount Andrus. This volcano is the youngest of three N-S-trending volcanoes in the Ames Range of western Marie Byrd Land, Antarctica.

Photo by Oscar González-Ferrán (University of Chile).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Keywords: lava flow | field work | volcanologist

Andrus