Radiocarbon dating artefacts

06-Jun-2016 14:47

Also, the metallic character of the samples complicates sample combustion or oxidation.

Thus, the measurement of iron drill shavings yielded ages that were far too high.

— It was while working in the Kent Laboratory building in the 1940s that researchers developed radiocarbon dating—an innovative method to measure the age of organic materials. — The Earth's magnetic field experiences reversals such that north becomes south. Researchers have dated volcanic ash that was formed immediately before ...

— The precise dating of ancient charcoal found near a skull is helping reveal a unique period in prehistory.

A number of iron artifacts have recently been analyzed by accelerator mass spectrometry (AMS) at Iso Trace.

van der Merwe (1969) obtained 14C measurements on 11 iron pieces, ranging in carbon content from medium carbon (0.22%) wrought iron (1.2 kg used) to high carbon (3.2%) cast iron (30 g), thereby demonstrating the feasibility of the technique for 14C dating iron. (1982) repeated two of van der Merwe's measurements, and carried out two analyses on a recently rediscovered Elizabethan(? Thirty grams were required of this medium carbon wrought iron to obtain an age using small proportional counters.Also, different methods for cleaning samples and removing contamination were tested.

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