Fentale_aerial.jpg (601 × 480像素,文件大小:54 KB,MIME类型:image/jpeg


描述
English: A vertical aerial photo of the Quaternary Fentale volcanic complex, lying along the main Ethiopian rift zone, shows its prominent summit caldera and lava flows forming its flanks. The 3 x 4 km caldera with steep-sided walls up to 500 m high is elongated perpendicular to the direction of the regional fissures of the Ethiopian Rift. Note the recent rhyolitic obsidian lava flow to the NE (upper right) marked with curved flow ridges. The dark lava flow on the caldera floor was erupted in 1820.
日期 published in or before 1971
来源 http://www.volcano.si.edu/world/volcano.cfm?vnum=0201-19=&volpage=photos&photo=015077
作者 Imperial Highway Authority of Ethiopia
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(二次使用本文件)
Public domain
本文件处于公有领域,因为it is the work of the former Ethiopean Empire

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当前2010年10月29日 (五) 14:482010年10月29日 (五) 14:48版本的缩略图601 × 480(54 KB)Michael Metzger{{Information |Description={{en|1=A vertical aerial photo of the Quaternary Fentale volcanic complex, lying along the main Ethiopian rift zone, shows its prominent summit caldera and lava flows forming its flanks. The 3 x 4 km caldera with steep-sided wal

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