Dallol (volcano)

Dallol
Elevation	−48 m (−157 ft)
Location
Location	Ethiopia
Range	Danakil Depression
Coordinates	14°14′30″N 40°18′00″E / 14.24167°N 40.3°E / 14.24167; 40.3
Geology
Type	Maars
Last eruption	1926

Dallol is a volcanic explosion crater (or maar) in the Danakil Depression, northeast of the Erta Ale Range in Ethiopia. It has been formed by the intrusion of basaltic magma in Miocene salt deposits and subsequent hydrothermal activity.^[1] Phreatic eruptions take place here, the last known one in 1926, numerous other eruption craters dot the salt flats nearby. These craters are the lowest known subaerial volcanic vents in the world, at over 45 m (150 ft) below sea level.

Numerous hot springs are discharging brine and acidic liquid here. Widespread are small, temporary geysers which are forming cones of salt.

The term Dallol was coined by the Afar people and means dissolution or disintegration describing a landscape made up of green acid ponds (pH-values less than 1) iron oxide, sulfur and salt desert plains. The area resembles the hot springs areas of Yellowstone Park but appears to be more wide-stretching.

See also

• List of volcanoes in Ethiopia
• Dallol - a ghost town in the Dallol crater. It had the record high average temperature for an inhabited location on Earth.

References

1. ^ "Dallol salt springs and geysers". Wondermondo. http://www.wondermondo.com/Countries/Af/Ethiopia/Afar/Dallol.htm. 

• "Dallol". Global Volcanism Program, Smithsonian Institution. http://www.volcano.si.edu/world/volcano.cfm?vnum=0201-041. 
• On the Volcanoes of the World episode The Horn of Africa (2008; Science Channel)

External links

• Photos from Dallol taken during an expedition to the Danakil in Feb. 2008