Dating at age 15
The possible confounding effects of contamination of parent and daughter isotopes have to be considered, as do the effects of any loss or gain of such isotopes since the sample was created.
It is therefore essential to have as much information as possible about the material being dated and to check for possible signs of alteration.
For example, the age of the Amitsoq gneisses from western Greenland was determined to be Accurate radiometric dating generally requires that the parent has a long enough half-life that it will be present in significant amounts at the time of measurement (except as described below under "Dating with short-lived extinct radionuclides"), the half-life of the parent is accurately known, and enough of the daughter product is produced to be accurately measured and distinguished from the initial amount of the daughter present in the material.
We hate to admit it, but finding the love of your life when over the age of 40 is often difficult.
Not because you are doing anything wrong, no, simply because most people your age are already happily married off.
The truth is, some people just can’t get over the past or their ex-partners for that matter.
Forgetting about ‘the one that got away’ isn’t always easy and can close people off from future potential love matches.