Radiometric dating parent daughter
4) What is the age a granite intrusion which has an isotopic abundance of P=6.25% and a half-life of 4 million years?What percentage of this isotope should be found as daughter material in this rock?
As a member, you'll also get unlimited access to over 55,000 lessons in math, English, science, history, and more.Isotope B has a half-life of 7.0 million years and 1.5625% of isotope B is found as parent material. Isotope B has a half-life of 750 million years and 1.5625% of isotope B is found as parent material. The age of a clastic rock would consist of a composite or average age of the igneous and metamorphic rock fragments that make up the rock.Imagine we have an undiscovered element, Parentium, that has a radioactive isotope, Parentium-123, which decays to stable Daughterium-123.Regardless of which name you prefer, the discovery was a true breakthrough that provided a tool to predict the geological history of the Earth and even the age of the Earth itself.To better understand how radiometric dating helps us determine the age of rocks, it will help us to gain a better understanding of how elements decay.
We can see how do deal with this if we take a particular case. For example the amount of Rb in mantle rocks is generally low, i.e. The mantle thus has a low If these two independent dates are the same, we say they are concordant.