Geologists frequently use mass spectrometers in determining the relative age of rocks. A spectrometer can differentiate between the ratios of isotopes in rock samples and calculates the radioactive decay involving what two isotopes?
Uranium - Lead Rubidium - Strontium Potassium - Argon Uranium - Strontium
Question: Geologists frequently use mass spectrometers in determining the relative age of rocks. A spectrometer can differentiate between the ratios of isotopes in rock samples and calculates the radioactive decay involving what two isotopes?
A. Uranium - Lead
B. Rubidium - Strontium
C. Potassium - Argon
D. Uranium - Strontium
Answer: