I suppose so, though the picture is not exactly what I have in mind(I prefer the higher glass ratio than the higher silica ratio). I'll alter existing graphics for that look, but it's not like if someone like pounder did it.
I was thinking of this for a long time, while Wasteworld was in the cradle, and because reports about Mohenjo Daro and similar in India and other sites, fascinated me since childhood.
Talk about nuclear explosions in ancient cities started around the 50's which would be interesting for a post-apocalyptic world that is heavily influenced by that era. Also, I'm sure that BM and his ancient India scenario could have use of that.