The Potassium/Argon (K/Ar or radiopotassium) method is used
A) to measure the contribution of meat to the diet.
B) to date items between 50,000 BP and the present.
C) only on items from Olduvai Gorge.
D) to date items more than 500,000 years old.

Question

Quizplus · Accepted Answer

The Potassium/Argon (K/Ar) dating method is used to date geological and archaeological materials that are older, typically over 500,000 years old, because it measures the decay of radioactive potassium (40K) to argon (40Ar), a process that occurs at a known rate over long periods of time.

The Potassium/Argon (K/Ar or Radiopotassium) Method Is Used