Flexi Says: Uranium-234 can be used to date materials such as carbonate sediments, bones, and teeth that have ages between 1000 and 300,000 years. In the process, first, the ratio of Th-230/U-234 is calculated and then over the period, the U-234 decays into Th-230. The age of the rock is calculated by knowing the difference between the initial of Th-230/U-234 with that of the sample dated.
