Dating sites for ostomates

06 Feb

With a thorough understanding of this dating method, it is my opinion that its ingenious fundamentals can be appreciated, yet greatly overshadowed by its limitations.

Radiocarbon Every day cosmic rays bombard our atmosphere.

For example, when lime absorbs CO2 it creates mortar, so the mortar can be dated via radiocarbon since some CO2 molecules are comprised of C14 (Bowman, 13).

When an organism dies, it obviously no longer eats, photosynthesizes, etc.Eventually the extra neutron it picked up in the upper atmosphere will break off releasing a high energy beta particle.This beta release allows the atom to turn back into Nitrogen. This radioactivity occurs at a measurable rate with a half-life of 5,730 years (Warf, 212).There is therefore no way for additional C14 to enter the organism once dead.This leads to an important fact: Only materials once part of the biosphere (organic) can be dated with radiocarbon (Bowman, 12), with the exception of some non-organic materials which can be dated with radiocarbon if their formation involved C14.