Radiocarbon dating charcoal
The Bill & Melinda Gates Foundation is a Strategic Partner.more Radiocarbon dating has transformed our understanding of the past 50,000 years.
The uncalibrated date is given with the unit BP (radiocarbon years before 1950).Very small samples (less than 300 mg) are analyzed by accelerator mass spectrometry (AMS).We have subcontractor agreements with several AMS facilities around the world.Materials suitable for radiocarbon dating include charcoal, wood and other plant matter, soils and sediments, shells, bone, carbonates, dissolved inorganic carbonate (DIC), methane and hydrocarbons, and food products.
A table of optimum and minimum sample sizes is provided below.
The radiocarbon lab at Geochron uses gas proportional counters to measure methane derived from relatively small samples.