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Oak is the species of prime interest and it is possible to date wood back to over 7,000 years with a precision, in appropriate circumstances, of a single year.This is most impressive and makes dendrochronology the main dating method for structures containing oak timber.

He wanted to know whether the number of sunspots affected weather on Earth.Please feel free to contact our lab staff to discuss the specific details of your samples.Normal handling will not contaminate most sample types, however, samples should be protected from sources of extraneous carbon.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.