What type of rock works best for radioactive dating
The results showed that Ötzi died over 5000 years ago, sometime between 33 BC. Uranium has a very long half-life and so by measuring how much uranium is left in a rock its approximate age can be worked out. The most widely known form of radiometric dating is carbon-14 dating.Say for example that a volcanic dike, or a fault, cuts across several sedimentary layers, or maybe through another volcanic rock type. There are two main methods determining a fossils age, relative dating and absolute dating.There are over forty such techniques, each using a different radioactive element or a different way of measuring them.
He was employed at Caltech's Division of Geological & Planetary Sciences at the time of writing the first edition.
He is presently employed in the Space & Atmospheric Sciences Group at the Los Alamos National Laboratory.
Radiometric dating--the process of determining the age of rocks from the decay of their radioactive elements--has been in widespread use for over half a century.
Fossils can't form in the igneous rock that usually does contain the isotopes.
Wiens has a Ph D in Physics, with a minor in Geology.