online dating dating sites month - Closed system radiometric dating
The benefits of using zircon is that the trapping temperature is 900 C.This temperature makes the zircon hard to pull out substances out of it.Other compounds that do not contain zirconium but are commonly used for this method are titanite, and monazite.
Uranium-Lead dating is a radiometric dating method that uses the decay chain of uranium and lead to find the age of a rock.
As uranium decays radioactively, it becomes different chemical elements until it stops at lead.
The four isotopes are uranium-235, uranium-238, lead-207, and lead-206.
The process of dating finds the two ratios between uranium-235 and lead-207; and uranium-238 and lead-206.
Most radiometric daters prefer using zircon for these reasons, but it is not the only compound used for uranium-lead dating.
Some other compounds used that have zirconium are zirconolite, and badeleyite.
The reason for stopping at lead is because lead is not radioactive and will not change into a different element.
It may sound straight-forward, but there are many variables that have to be considered.
It also implies that none of the factors that might affect the rate of the radioactive decay could not. If the ages this dating process generates are true, it gets harder to assume that nothing on the outside of the sample has any effect on the system.Tags: Adult Dating, affair dating, sex dating