Carbon dating measure

25-Jan-2020 01:42

Carbon-14, or radiocarbon, is a naturally occurring radioactive isotope that forms when cosmic rays in the upper atmosphere strike nitrogen molecules, which then oxidize to become carbon dioxide.

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Relative dating puts geologic events in chronological order without requiring that a specific numerical age be assigned to each event.

This is the principle of original horizontality: layers of strata are deposited horizontally or nearly horizontally (Figure 2).