View Single Post
  #86 (permalink)  
Old 13-May-2009, 04:15 AM
Cavorite's Avatar
Cavorite Cavorite is offline
Established Member
 
Join Date: Apr 2008
Location: Perth, Western Australia
Posts: 128
Default

Quote:
Originally Posted by SpecialEd View Post
Also that "chemical analysis dates the drawing at 200,000 years." What chemical analysis is that? You can't carbon date iron.
Actually, sometimes you can. Cast iron can contain up to 4% carbon. If the iron was smelted with charcoal, that makes it potentially datable. If it was fired with coke, you're out of luck.
Reply With Quote