Half-lives of radionuclides used in nuclear geochronology and cosmochronology (evaluated data)

Evaluated half-life values are given for the radionuclides sup 2 sup 6 Al, sup 4 sup 0 K, sup 5 sup 3 Mn, sup 6 sup 0 Fe, sup 8 sup 7 Rb, sup 9 sup 3 Zr, sup 9 sup 8 Tc, sup 1 sup 0 sup 7 Pd, sup 1 sup 2 sup 9 I, sup 1 sup 3 sup 5 Cs, sup 1 sup 4 sup 6 Sm, sup 1 sup 7 sup 6 Lu, sup 1 sup 8 sup 2 Hf, sup 1 sup 8 sup 7 Re, sup 2 sup 0 sup 5 Pb, sup 2 sup 3 sup 2 Th, sup 2 sup 3 sup 5 U, sup 2 sup 3 sup 8 U, sup 2 sup 4 sup 4 Pu and sup 2 sup 4 sup 7 Cm. These were obtained from an analysis of published information up to 2001. These half-lives are used in geochronology and cosmochronology to determine different radiometric ages in the history of the earth, solar system and galaxy.