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In dating any object, geologists: When dating an object, a geologist measures some physical property of the object, which is believed to provide evidence regarding its age.
All dating methods rely upon assumptions about the past.
This problem is made worse because other types of crystal defects can easily be counted as fission tracks.
Dendrochronology is a technique of dating past climatic changes through a study of tree ring growth.
Concordia dating is a form of uranium/lead dating that uses a concordia diagram.
The theory is that when zircons crystallize they lose all of their lead and as long as the crystal remains closed its lead/uranium ratios should follow a predictable trend.
These assumptions are based on the axioms or worldview the scientist is operating within.
This worldview is the basis for an entire system of theories.
Isochron dating has been developed in an attempt to solve such problems.U has a known rate, and as such the number of tracks is theoretically related to the age of the sample.Because fission-track dating requires a manual count of the fission tracks, the process is more prone to human error and bias than other radiometric dating methods.The methods are all ultimately calibrated to relative dates of the geologic column, such that data that conflicts with a fossil's or rock's placement in the geologic column is explained away by the evolutionary theoretical system.For example, Carbon-14 would decay to nothing in well under 1 million years, so if Carbon-14 is found in a dinosaur fossil it is interpreted as resulting from contamination.
Creation science is one theoretical system and evolution is another.