Samarium-neodymium dating is a radiometric dating method used to determine the age of rocks and minerals, particularly those containing rare earth elements. This technique is based on the decay of the isotope samarium-147 (Sm) to neodymium-143 (Nd). Here's how it works: 1. **Decay Process**: Samarium-147 has a half-life of about 106 billion years.
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