BackgroundDallol overlies several km of quaternary evaporates which contain large amounts of potash (potassium carbonate, K2CO3) that were quarried by shifting mining companies for most of the 20th century.
It is believed that Dallol, located on the main rift axis of the Danakil depression, is caused by an active basaltic volcano located under the layers of salt. The roughly circular depression on top of Dallol mountain was suggested to be a collapse crater.
The only known volcanic activity was a phreatic explosion in 1926 that produced a 30 m wide crater at the foot of the Black Mountain.
Dallol volcano tours:Highlights of Ethiopia (16 days expedition and trekking to Erta Ale volcano, Dallol, Lalibela and Semien mountains (Ethiopia))Desert, salt and volcanoes (14 days expedition to Erta Ale volcano and Dallol hydrothermal field (Danakil desert, Ethiopia))
See also: Sentinel hub | Landsat 8