Global Volcanism Program | Image GVP-12075
The caldera of Fentale volcano, also known as Fantale, is seen in a fish-eye lens view from the NE rim and has walls up to 500 m high. Welded pyroclastic flow deposits accompanied the 2.5 x 4.5 km summit caldera formation. The WNW-ESE-trending elliptical caldera has an orientation perpendicular to the Ethiopian Rift and post-caldera vents occur along the same orientation. Trachytic and obsidian lava flows were emplaced onto the caldera floor. More recent lava flows were erupted in the caldera and on its flanks in 1820.
Photo by Tom Pfeiffer, 2008 (www.volcanodiscovery.com).
This image is made available under the Creative Commons BY-NC 4.0 license terms.