Radiometric age dating half life twitter not updating on iphone
You might have noticed that many of the oldest age dates come from a mineral called zircon.
That’s because zircon is super tough – it resists weathering. Each radioactive isotope works best for particular applications.
Samples for dating are selected carefully to avoid those that are altered, contaminated, or disturbed by later heating or chemical events.
Geologists draw on it and other basic principles ( to determine the relative ages of rocks or features such as faults.