Age is an effect of time, not an intrinsic property of matter.The only way to indirectly determine the age of an artifact is through comparative analysis against a similar artifact of known age.
Radioactive inclusions in rock often cause concentric spheres of discoloration due to the damage caused by alpha particles as they are emitted by the radioactive substance.
Pleochroic halos are the scars of radioactive decay, particularly alpha decay.
Lastly, imagination and intuition can be inspiring, useful, and enjoyable; but imagining doesn't make it so, and intuition is but a fallible prediction; and when fiction is presented as fact, it is open to criticism, and your health, wealth, or peace of mind can be in jeopardy from bunk.
Wikipedia links are included if the articles have a critical/skeptical/controversy section or if they provide a good overview of the subject.
Although ideologues and true believers cannot be swayed by logical arguments and credible evidence, there might be others on the sidelines who can be influenced. You say one thing and they will hear another (see Why People Don't Realize They're Incompetent for an explanation). ); it's about exposing shams and falseness, and it can be good debate practice or just plain fun.
And in the case of grand conspiracy believers, any argument against the conspiracy becomes an argument for the conspiracy, as contrary evidence was planted and absent evidence was removed. But you might be able to sow a seed of reality that could rear its rational sprout years later. Apart from having fun, the primary goal should be the defense of quality science because it's such an amazingly useful tool for discovery and progress.
It has been accurately measured for over 150 years, and is not subject to environmental changes since it is generated deep in the earth’s interior.
If any fundamental planetary process ought to be a reliable indicator of the earth’s age, it should be our earth’s magnetic field–and that field indicates an upper limit significantly less than 10,000 years for the age of the earth.
The trouble with the world is not that people know too little, but that they know so many things that ain't so.
--Mark Twain (Samuel Clemens), Will Rogers (William Penn Adair), or Josh Billings (Henry Wheeler Shaw) When you read or overhear nonsense or the besmirching of science, do you have an urge to respond and set things straight?