We reserve the right to refuse material for dating if the provenance is uncertain or for other ethical considerations.These prices include sampling, chemical pre-treatment, stable carbon isotope and AMS isotope measurement for samples relevant to research in Archaeology or Environmental Science.Normal handling will not contaminate most sample types, however, samples should be protected from sources of extraneous carbon..action_button.action_button:active.action_button:hover.action_button:focus,.action_button:hover.action_button:focus .count,.action_button:hover .count.action_button:focus .count:before,.action_button:hover .count:bullet. When 10 similar samples - cost is 1000-10%Discount 10 Euro for Customs formalities all equals 910 Euro.These prices include sampling (at Oxford), sample preparation, stable carbon isotope and AMS isotope measurement.Typically, this is NZD100 for pretreatment and NZD200 for pretreatment and combustion, but charges may vary depending on the sample type.
All samples that have undergone pretreatment and subsequently found to be unsuitable for dating, or abandoned for another reason, may incur a part charge.
The method takes advantage of the natural occurrence of a radioactive isotope of carbon (C in samples of ancient carbon compounds and comparing this with the amount in modern materials, it is possible to determine the time of cessation of carbon exchange with the atmosphere.
The radiocarbon lab at Geochron uses gas proportional counters to measure methane derived from relatively small samples.
The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen.
The resulting radiocarbon combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire in a sample from a dead plant or animal such as a piece of wood or a fragment of bone provides information that can be used to calculate when the animal or plant died.
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