Radiocarbon dating and the prehistoric archaeology of china

These contaminants are considered natural because they came in contact with the bones due to natural occurrences.Artificial contaminants, on the other hand, are those that were introduced by man during the collection, conservation, or packaging of the bone samples.Time-width data is necessary because they affect calibration of radiocarbon results and, consequently, the way radiocarbon age is converted to calendar years.

More in-depth information about old civilizations is also available due to radiocarbon dating results on bones. The organic portion is protein; the inorganic portion is the mineral hydroxyapatite, which is a combination of calcium phosphate, calcium carbonate, calcium fluoride, calcium hydroxide, and citrate.Radiocarbon dating individual amino acids is not recommended unless necessary as in the case of old bone samples where the presence of even small levels of contaminants produce a large error.The time-width of any given sample reflects the total growth of the original organism and the span of time that organism interacted with the biosphere.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.

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