The artificial radiocarbon produced by the thermonuclear bomb tests in the 1950s and 1960s significantly increased the level of C-14 in the environment. A detailed record of the subsequent changes in the C-14 concentration of the atmosphere can be used to date plant and animal material accurately over the past half century. Examples of this application are given.
Reference:
Vogel, JC, Fuls, A and Visser, E. 2002. Accurate dating with radiocarbon from the atom bomb tests. South African Journal of Science, vol. 98, 10 September, pp 437-438
Vogel, J., Fuls, A., & Visser, E. (2002). Accurate dating with radiocarbon from the atom bomb tests. http://hdl.handle.net/10204/733
Vogel, JC, A Fuls, and E Visser "Accurate dating with radiocarbon from the atom bomb tests." (2002) http://hdl.handle.net/10204/733
Vogel J, Fuls A, Visser E. Accurate dating with radiocarbon from the atom bomb tests. 2002; http://hdl.handle.net/10204/733.