Aeolian dust is the main research topic I have been working on since my PhD;

I get the chance to travel a lot for that: sample large deserts and ocean sediments offshore these large sand boxes.

My approach to desert dust is a sedimentological one: the wind is a very selective transport mechanism that has a strong impact on the material it carries from source to sink, and on its particle-size distributions:
* coarse particles won't be picked up
* fine particles will be kept in suspension

Therefore, wind-blown deposits have a very-well sorted size distribution that decreases from proximal (close to the source) to distal (far away from the source).

If we can recognise and quantify wind-blown particles in deep-sea sediments (and obviously we claim that we can) they can tell us something about the environmental conditions in the source area at the time of deposition.

In addition I try to find support for the inferences made on the physical properties using (bio)geochemical and mineralogical proxies.

....and you thought YOUR house was dusty.... (found on internet)
Sydney, Australia, before and after dust event on 23 September 2009 (found on internet)
Dust storm in Iraq, caused by breaking of desert crust (found on internet)