carbon dating formulat

Feb 29, August Before this can be done, the sample must be treated to remove any contamination and any unwanted constituents. This follows first-order kinetics :. The point where this horizontal line intersects the curve will give the calendar age of the sample on the horizontal axis. It is based on the fact that radiocarbon 14 C is constantly being created in the Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen. Thus making samples from the early 20th appear older.

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