C13 carbon dating
It was discovered in 1934 by Grosse as an unknown activity in the mineral endialyte. This half life has later been re-determined by Godwin. Libby recognized that due to its occurrence in natural materials, either by simple mixing processes or by carbon exchange.In the same year, Kurie (Yale) exposed nitrogen to fast neutrons and observed long tracks in a bubble chamber. The mean life time of roughly 8000 years is ideal for dating of reservoirs that are a few decades to a few ten thousand yeas old.For groundwater, this means that C is a widely used tool to establish chronologies for groundwater flow systems and climate records for the Holocene and Pleistocene.It is considered to be the most important tool for age dating of ‘old’ groundwater.
Isotopes participate in the same chemical reactions but often at differing rates.All carbon atoms have a nucleus containing six protons.Ninety-nine percent of these also contain six neutrons.Many people have been led to believe that radiometric dating methods have proved the earth to be billions of years old.This has caused many in the church to reevaluate the biblical creation account, specifically the meaning of the word “day” in Genesis 1.