Radiometric Dating Principles
nPotassium-Argon, Uranium-Lead, C14 methods
nPotassium (K) decays into Argon (Ar) over time at a known rate
nRate is specified by the element’s “half-life”, i.e. the number of years for ˝ of the parent isotope to decay to daughter isotope
nUsed to postulate dates of processes
nC14 dating is used for dating “young” objects, i.e. that were living or made from living materials
nC14 half-life is 5730 years
nUsed for objects claimed to be less than 35K years old