Rubidium-strontium (Rb-Sr) dating is a radiometric dating technique that is used to determine the age of rocks and minerals by measuring the decay of rubidium-87 (Rb-87) to strontium-87 (Sr-87). This method relies on the principles of radioactive decay, where a parent isotope (in this case, Rb-87) decays into a stable daughter isotope (Sr-87) over time at a known rate.
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