Uranium-Thorium (U-Th) dating is a radiometric dating technique that measures the ratio of uranium to thorium isotopes to determine the age of calcium carbonate materials, such as corals and speleothems. This method is significant in geochronology for dating relatively young geological formations and for studying past climate changes.
Reference: Edwards, R. L., Chen, J. H., & Wasserburg, G. J. (1987). “Uranium-Series Dating of Marine Carbonates Using Multiple Collectors.” Geochimica et Cosmochimica Acta, 51(9), 2331-2338.