Radiocarbon dating inaccurate
AMS lab results with this sample will be inaccurate.Other potential contaminants that can be introduced to bone samples after excavation include biocides, polyvinyl acetate and polyethylene glycol (conservation chemicals), cigarette ash, and labels or wrappers that are made of paper.
However, this process is costly and time consuming.
Limestone is of geological origin and will therefore be much older than any archaeological samples.
The presence of humic and fulvic acids during AMS radiocarbon dating will lead to inaccurate results as well.
Modern sources of carbon can make the AMS carbon dating result of a bone younger than its true age.
In general, infinite-age contaminants add considerable number of years to the true age of a bone sample, making it older than it is.