Radiometric dating is mostly used to determine the age of rocks, though a particular form of radiometric dating—called Radiocarbon dating—can date wood, cloth, skeletons, and other organic material.

Although radiometric dating methods are widely quoted by scientists, they are inappropriate for aging the entire universe due to likely variations in decay rates.

Scientists insist that Earth is 4.6 billion years old C14 dating was being discussed at a symposium on the prehistory of the Nile Valley.

The phenomenon we know as heat is simply the jiggling around of atoms and their components, so in principle a high enough temperature could cause the components of the core to break out.

However, the temperature required to do this is in in the millions of degrees, so this cannot be achieved by any natural process that we know about.

Zincon has a very high closure temperature, is very chemically inert, and is resistant to mechanical weathering.

For these reasons, if a rock strata contains zircon, running a uranium-lead test on a zircon sample will produce a radiometric dating result that is less dependent on the initial quantity problem.The second way that a nucleus could be disrupted is by particles striking it.However, the nucleus has a strong positive charge and the electron shells have a strong negative charge.Any incoming negative charge would be deflected by the electron shell and any positive charge that penetrated the electron shells would be deflected by the positive charge of the nucleus itself.It is important that the sample not have had any outside influences.Likewise, heating the rock such as granite forms gneiss or basalt forms schist.