Neutron activation analysis of absolutely-dated tree rings
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Gold concentration was determined for dendrochronologically-dated wood samples using neutron activation analysis (NAA) and correlation sought with known environmental changes, e.g., volcanic activities, during historic periods. Uptake of gold is sensitive to soil pH for many plants. Data presented in this paper are from a single, cross-dated tree that grew in Greece. Using NAA, gold was measured with parts-per-billion sensitivity in individual tree rings from 1411 to 1988 AD.
KeywordsGold Physical Chemistry Inorganic Chemistry Environmental Change Activation Analysis
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