Sodom Found?

It appears as if they have found the remains of Sodom and Gomorrah, complete with the layer of salt and sulfate as described in Genesis. They give a date of the disaster, which looks to them like a meteorite airburst event, as 3700 years before present. This is somewhat more recent than my date for Abraham. I would place him in is prime at about 4,000 years before present. Still I am sure there are error bars on their date calculations.....  Article here. Paper here...