Here is a detail of some of that salt deposit where the lake "went away".
(Can't use term "receded", because the lake might be bigger now. Maybe "moved away"?)
Wind was moving image left to image right. It swooped around the topographic obstacle. There is also a neat lumpiness repeating bump pattern as well. And on top of all this are the fine hairs of salt. Zoom in to image center for detail.
I think that this is an evaporative salt effloresecnce carved by wind.