Summary of Examples of Nuclides Used and Types of Application

Table 14-3 contains examples of nuclides that have been used in the two categories of environmental applications in recent years. The radionuclides used to measure time are cosmogenic, primordial, or a daughter of the latter. Table 14-4 gives examples of chemical and physical processes occurring in the environment that have been studied. For examples of the types of system that have been studied to determine the age of a substance or the date when a particular event occurred in the past, see Table 14-5.

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