Steam issues from Darere, a fumarole (steam vent) found in Alid's summit basin. The steam escapes at the boiling point of water (~98°C at this elevation) and is accompanied by abundant CO2, H2S and H2. Photo courtesy of the U.S. Geological Survey.
Steam issues from Darere, a fumarole (steam vent) found in Alid's summit
basin. The steam escapes at the boiling point of water (~98°C at this
elevation) and is accompanied by abundant CO2, H2S and H2. Photo courtesy
of the U.S. Geological Survey.
|
Theoderos Tesfai, an Eritrean geochemist, collects a sample of fumarolic gas at As'ela, a fumarole on Alid's north flank. He is watched by a local goatherder. Photo courtesy of the U.S. Geological Survey. |
Source of Information:
Richard J.J., Neumann van Padang M, 1957, Africa and the Red Sea. Catalog of Active Volcanoes of the World, Rome: IAVCEI 4, p.7.
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