In a study published six years ago, researchers detected a giant lava dome that exists below the Kikai Caldera. That holds a volume of more than 32 cubic kilometers of trapped magma. The most ...

Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

Guillermo Vieiro was 44 when he died in 1985 while descending Argentina's Tupungato lava dome, one of the highest peaks in the Americas. Then last year, his backpack was spotted on a slope by ...