Potassium-Argon Dating is Best Used to Date

Question

Potassium-argon dating is best used to date
A) recent archaeological sites.
B) young rocks.
C) young fossils.
D) old fossils or rocks.

Accepted Answer

Potassium-argon dating is a radiometric dating method that can accurately determine the age of very old fossils or rocks, typically those over 100,000 years old. It relies on the decay of potassium-40 into argon-40, and is commonly used to date volcanic rocks and minerals.