Carbon dating zooarchaeology

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Curator Geoffrey Hargreaves inspects core samples from the Greenland ice sheet. The cores are vital to understanding changes in atmospheric carbon levels in the past.

�� Roger Ressmeyer/Corbis/VCG / Getty Images The scientific term "cal BP" is the abbreviation for "calibrated years before the present" or "calendar years before the present" and what that is references the fact that archaeologists have discovered wiggles in the radiocarbon curve which produces usable dating.

Reliable estimates are possible, but with large /- factors.Archaeological specimens range in age from a few hundred to approximately six thousand years old.Collagen was extracted, its quality assessed using %C, %N and C: N, and δN values from the two laboratories.The carbon-14 method was developed by the American physicist Willard F. It has proved to be a versatile technique of dating fossils and archaeological specimens from 500 to 50,000 years old.The method is widely used by Pleistocene geologists, anthropologists, archaeologists, and investigators in related fields.

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