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Radiocarbon dating qub

You have sent your samples off to the lab and received the results back. Because the date is only the conventional age, you need to transform it to calendar years by using a calibration program. CALIB 4.4 These figures tell you that the most likely age of your sample is between AD 13 (a 96.3% chance). It is also possible (though not very likely) that the sample dates to the period between AD15 (3.6%) or AD13 (0.1%).

When presenting your results, be sure to round off to the nearest "10". Be sure to consider the following: The CALIB program can also plot these results on a graph.

Bone, antler, and teeth Our ability to radiocarbon date bone and other collagen containing samples such as antler, horn, and teeth (dentine) depends upon the preservation of the protein component of the bones (mostly collagen).

The preservation depends largely on the burial conditions (soil acidity, temperature, moisture etc.).

For soils and sediments the carbon content varies greatly.

If the % carbon is unknown then please contact us about conducting testing a sample first.

CALIB makes the conversion from radiocarbon age to calibrated calendar years by calculating the probability distribution of the sample's true age.

Graphics and a variety of options are available through the program's menus.

Bones with low nitrogen content will not be processed to collagen.

Professor Gerry Mc Cormac and Dr Paula Reimer pictured in the 14 Chrono Centre at Queen's University Belfast.

Staff at the Centre have been involved in the creation of a new calibration curve, which extends back 50,000 years.

It not only extends radiocarbon calibration but also considerably improves earlier parts of the curve.

Let's say that you have considered all of the potential dating and sampling issues.


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