why is interratial dating so popular - What radiocarbon dating be used on
The most well-known of all the radiometric dating methods is radiocarbon dating.
To measure the rate of decay, a suitable detector records the number of beta particles ejected from a measured quantity of carbon over a period of time, say a month (for illustration purposes).
Since each beta particle represents one decayed carbon-14 atom, we know how many carbon-14 atoms decayed during that month.
Radiocarbon decays slowly in a living organism, and the amount lost is continually replenished as long as the organism takes in air or food.
Once the organism dies, however, it ceases to absorb carbon-14, so that the amount of the radiocarbon in its tissues steadily decreases.
Carbon-14 is continually formed in nature by the interaction of neutrons with nitrogen-14 in the Earth’s atmosphere; the neutrons required for this reaction are produced by cosmic rays interacting with the atmosphere.
Radiocarbon present in molecules of atmospheric carbon dioxide enters the biological carbon cycle: it is absorbed from the air by green plants and then passed on to animals through the food chain.
If the level is constant, living plants and animals should also maintain a constant carbon-14 level in them.
The reason is that, as long as the organism is alive, it replaces any carbon molecules that have decayed into nitrogen.
Let’s suppose we find a mammoth’s skull, and we want to date it to determine how long ago it lived.Tags: Adult Dating, affair dating, sex dating