Sulphur sediments in the thermal area of Dallol, Danakil-Senke, Ethiopia, Africa

african africa barrenness barren dallol danakil desert danakil deserts desert desolate droughts drought dryness dry east africa eastern africa ethiopian ethiopia geothermal area geothermal power geothermal geothermic energy geothermic meager meagre minerals mineral nobody no one no people salt desert salt flat salt lakes salt lake salt pan sandy sand sedimentation sediments sediment sulphur sulfur sulphur thermal areas thermal area travel photography