dust  search
BTsediments
 .clastic sediments
 ..dust
RTatmospheric transport
 volcanic ash
 terrigenous materials
 cosmic dust
 dust storms
 deflation
 interplanetary dust
dust clouds  search
SNUse dust storms or planetesimals or ash clouds if applicable.
dust clouds (volcanic)  search
USEash clouds
dust storms  search
RTatmospheric transport
 dust
 storms
SNAlso search dust clouds NOT extraterrestrial geology if applicable.