Click on pictures to enlarge or obtain more information. | |
 Azores - Lagoa de Fogo (crater lake) |  Lava Stalactites - Pico (Azores) |
 Pico in Winter |  Lava tube cave on Pico |
 Lava Tube Formation This requires Pahoehoe lava which has the correct thickness to form a crust/tube from the inside of which the still-molten lava then pours out. Roof collapses frequently allow access to these caves. | |
 Azores - tectonic plates |  Faial - Capelinhos erupting 1957/58 courtesy of Foto Jovial, Horta, Faial |
