Which allowed scientists to determine that Earth was at least 4.3 billion years old the electrical conductivity of uranium ions the radioactivity decay of uranium to lead chemical reactivity of zircon icons magnetic field surroundings Erica
The radioactivity decay of uranium to lead, as well as the chemical reactivity of zircon ions in their surroundings, allowed scientists to determine that Earth was at least 4.3 billion years old. The electrical conductivity of uranium ions and the magnetic field surrounding the Earth have not directly contributed to this specific dating method.
