Richard Irving

Enthalpy -- I think you alluded to this method prior, and yes the Institute of Nuclear Physics can date the canvas of artworks beyond any doubt using the “bomb peak” method; since between the late 1950s and early 1960s, Cold War nuclear weapons testing essentially doubled the radiocarbon concentrations in the atmosphere, and therefore in all organisms alive at that time. Cheers, Dan

I think you are correct in your interpretation Enthalpy, since in the Hohokam pattern it appears that the ten radiocarbon ages from overbank deposits, essentially large floods, correlates with the 1000 BP beginnings in changes to settlement patterns by these prehistoric agriculturalists. Additionally, in the Holocene Stone Age People, Deacon's book appears to be research on the prehistoric adaptions of the people during the transition between the Pleistocene and Holocene epochs, which with eight radiocarbon dates would make the termination of the occupation of the reported two sites at 250 BP. Anthropological dating through the use of the biostratigraphy method makes for an excellent search word indeed, thanks for your additional assistance and education on the subject under discussion. Cheers, Richard

Not sure it's exhaustively relevant to this situation, but I would be interested to read the article if you have a link, Enthalpy? Thanks, Richard

I see your process in identifying a different Isotope method and concur with your conclusions on the examples you presented. Thank you for your more constructive follow-up. From the inquiry thus far: Signals at the Köte or Köhlerhütte () therefore show nothing and ash in charcoal can be rejected for testing as unreliable. The characterizing information of chemical components in paper appears the only reliable method, in identifying the authenticity of material on the subject of what author Mr. Jonathon Keats would posit as "great art". Cheers, Richard

Hey Enthalpy, thanks for the welcome and reply.

Is there a method for testing the age of paper compounds and organic samples to identify the year it was made after BP? I understand that in testing paper, a technician would identify the constituents on a historical reference standard for paper manufacturing -- essentially what was used in the manufacturing of paper when, to conclude the date of likely manufacture by cross-referencing. However, is there a test for charcoal, could the remaining ash be somehow tested for age, and if so, how? Cheers, R