This article may be expanded with text translated from the corresponding article in the French Wikipedia. (September 2011)
Click [show] on the right to read important instructions before translating.
View a machine-translated version of the French article.
Google's machine translation is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
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.Phreatic eruptions took place here in 1926, forming Dallol Volcano, 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. The most recent major activity was in October 2004 when the shallow magma chamber beneath Dallol deflated and fed a magma intrusion southwards beneath the rift.
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.
^Nobile, A; Pagli, C; Keir, D; Wright, TJ; Ayele, A; Ruch, J; Acocella, A (October 2012). "Dike-fault interaction during the 2004 Dallol intrusion at the northern edge of the Erta Ale Ridge (Afar, Ethiopia)". Geophysical Research Letters39 (19). doi:10.1029/2012GL053152.