Types of dating fossils
He holds a Bachelor of Science, postgraduate diplomas in journalism and website design and is studying for an MBA.Sometimes correlative dating is preferred over absolute dating, particularly with microfossils because the methods for absolute dating would destroy the fossil specimen.In a way this field, called geochronology, is some of the purest detective work earth scientists do.
The study of fossils across geological time, how they were formed, and the evolutionary relationships between taxa (phylogeny) are some of the most important functions of the science of paleontology.
The other methods of dating use uranium or plutonium.
These are radioactive elements that have a much longer half-life.
As radioactive isotopes of elements decay, they lose their radio activity and become a brand new element known as a daughter isotope.
By measuring the ratio of the amount of the original radioactive element to the daughter isotope, scientists can determine how many half-lives the element has undergone and from there can figure out the absolute age of the sample.