which unstable element is used to determine the age of volcanic rock? argon carbon - 12 potassium carbon - 14
which unstable element is used to determine the age of volcanic rock? argon carbon - 12 potassium carbon - 14
Answer
Brief Explanations:
Potassium - argon dating is a common method for dating volcanic rocks. Potassium - 40 is an unstable isotope that decays to argon - 40 over time. Carbon - 12 is a stable isotope. Carbon - 14 is mainly used for dating organic materials, not volcanic rocks.
Answer:
C. potassium