Start Carbon 14 the radioactive nuclide used in dating fossils has

Carbon 14 the radioactive nuclide used in dating fossils has

It is possible to make artificial radioactive substances by bombarding lighter nuclides with - particles, protons or neutrons.

It was produced in 1934 by bombarding aluminium with - particles, i.e., Phosphorus - 30 was produced, together with a neutron.

There are over forty such techniques, each using a different radioactive element or a different way of measuring them.

It has become increasingly clear that these radiometric dating techniques agree with each other and as a whole, present a coherent picture in which the Earth was created a very long time ago.

His Ph D thesis was on isotope ratios in meteorites, including surface exposure dating.