JonF
Posts: 634
Joined: Feb. 2005
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| Quote (afdave @ June 16 2006,14:51) | | Now, JonF ... how can you say 'Oh, we can date this cave painting reliably or whatever, but we cannot date this coal reliably.' Why is the coal subject to 'radioactive contamination' or whatever, and the cave painting is not? They got many samples from widely varying loacales and depths. It seems that if you always go about saying 'Oh, that's contaminated but this is not, how can anything be reliably dated by C14?' |
I already explicitly answered your question, Davie-poo. Go back and read my posts for comprehension.
Thinkk "cross-checking" and what level of contamination is required to change the calcluated date of a sample of, say, 30K years age. Remember exponentials, Davie-wavey?
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