What is radioactive dating and what isotopes are used freak dating
Wiens has a Ph D in Physics, with a minor in Geology.
His Ph D thesis was on isotope ratios in meteorites, including surface exposure dating.
Many rocks and organisms contain radioactive isotopes, such as U-235 and C-14.
But there are some questions that come to mind: Calculus students typically meet this problem somewhere in the second semester.
It is one of the simplest examples of a differential equation.
The half-lives of several radioactive isotopes are known and are used often to figure out the age of newly found fossils.
Different isotopes have different half-lives and sometimes more than one present isotope can be used to get an even more specific age of a fossil.
One way that helps scientists place fossils into the correct era on the Geologic Time Scale is by using radiometric dating.