Fascinating. Great find.
Here’s the culprit:
http://en.wikipedia.org/wiki/Umm_al_Binni_lake
If you look around the area there are other similar depressions. The impact craters appear to indicate the objects came from the NE, perhaps an asteroid which broke-up prior to impact?
200-year-long drought may have killed Sumerian language
MSNBC | 12-4-2012 | Tia Ghose
Posted on Wed Dec 5 09:09:59 2012 by Renfield
http://www.freerepublic.com/focus/chat/2965817/posts