The uranium-thorium U-Th method can constrain the age of cave art by providing dates of formation of calcite deposits from on top of paintings or calcite layers on which paintings were done. It is particularly useful for art made without radiocarbon datable organic pigments or binders, or where contamination of radiocarbon samples is an issue.
Articles , Features , News , Science Notes. Posted by Kathryn Krakowka.
Uranium-Thorium dating is based on the detection by mass spectrometry of both the parent U and daughter Th products of decay, through the emission of an alpha particle. The decay of Uranium to Thorium is part of the much longer decay series begining in U and ending in Pb.
Here I want to concentrate on another source of error, namely, processes that take place within magma chambers. To me it has been a real eye opener to see all the processes that are taking place and their potential influence on radiometric dating.
This chapter is based on pp. Not included in this chapter are at least 62 statements by scientists.
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