Four types of radiometric dating

Answer 1

1. - Potassium-Argon method – Potassium-40 decays to argon and calcium.
2. - Uranium-Lead method
3. - Rubidium-Strontium method
4. - Carbon-14 method – also known as carbon dating. The half-life of carbon-14 is only 5, 730 years so this method is mainly used for dating things from the last 50,000 years

Answer 2

1. Carbon-14 dating: used to date organic materials up to 50,000 years old.
2. Potassium-argon dating: used to date volcanic rocks and minerals up to several billion years old.
3. Uranium-lead dating: used to date rocks and minerals up to billions of years old.
4. Rubidium-strontium dating: used to date rocks and minerals, particularly older than 10 million years.