Systems that have been exploited for radiometric dating have half-lives ranging from only about 10 years e.
However, in general, the half-life of a nuclide depends solely on its nuclear properties and is essentially a constant.
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It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
It is the principal source of information about the absolute age of rocks and other geological features, including the age of the Earth itself, and it can be used to date a wide range of natural and man-made materials.
I think the best evidence of macroevolution is in genetic …
similarities between all life on earth, common descent.
Radiometric dating is a method of determining the age of an artifact by assuming that on average decay rates have been constant see below for the flaws in that assumption and measuring the amount of radioactive decay that has occurred.
Because radiometric dating fails to satisfy standards of testability and falsifiability , claims based on radiometric dating may fail to qualify under the Daubert standard for court-admissible scientific evidence. Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks.
The most relevant one for my work has been U-Pb on zircon.
U-Pb is a very reliable way of getting the age and history of zircon crystals, which are a common and extremely resilient mineral found in igneous systems.
The best-known radiometric dating techniques include radiocarbon dating, potassium-argon dating, and uranium-lead dating.