Creation Science

Young Earth Creation Science Argument Index


G141:  KBS Tuff shows the flaws of radiometric dating


Edited by Greg Neyman



In northern Kenya, the KBS Tuff is a layer of ash.  It is significant because hominid fossils and artifacts are found above and below it, thus date the tuff and you have a minimum age for the artifacts under it.  However, dates for the tuff rance from half a million years to 220 million years.  Researchers pick the dates they want, ignoring the so-called "bad dates"


Source:   Lubenow, Marvin L. 1995. The pigs took it all. Creation 17(3) (June): 36-38.





  1. The tuff is a rediposited layer of volcanic ash.  Care must be taken to not date the material that it is mixed with.  This led to the older dates (for a much fuller explanation, open the Talk Origins link below)

  2. They youngest date given is still much too old for a 6,000-10,000 year old earth proposed by young earth creationists


For more Reading:

Talk Origins article



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