Fernandina Volcano, Ecuador

Fernandina volcano displays the classic "overturned soupbowl" profile of Galapagos volcanoes.

Steep upper flanks formed by eruptions of lava flows from circumferential fissures around a summit caldera rim contrast with the broad, low-angle lower flanks and horizontal flows around the summit.

Scientists from the Smithsonian Institution, U.S. Geological Survey, and the Charles Darwin Research Station conduct measurements on a pahoehoe lava flow near the SE coast.

Vast fields of fresh, unvegetated lava flows cover the volcano's flanks.

PHOTO SOURCE: Chuck wood 1978, courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.

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