Xenon is an inert gas and belongs to group VIIIA of the periodic table. Xenon has nine stable isotopes, second only to tin. The nine xenon isotopes are 124Xe, 126Xe, 128Xe, 129Xe, 130Xe, 131Xe, 132Xe, 134Xe, and 136Xe. Of these isotopes, 124,126,128,130Xe are nonradiogenic, 129Xe is radiogenic and 131,132,134,136Xe are fissiogenic. The relative abundances of these isotopes in the atmosphere are 0.095%, 0.089%, 1.910%, 26.4%, 4.017%, 21.23%, 26.91%, 10.44%, and 8.86%, respectively. The isotopic abundances in other reservoirs, such as crust, mantle, or groundwater, differ from the atmospheric abundances due to fractionation of I-Xe, U-Xe, and Pu-Xe and subsequent radioactive decay. This contribution will focus on the Xe isotopes in the solid Earth and atmosphere.
Measurements of xenon isotopes in mantle-derived basalts provide information on processes as varied as volatile accretion, mantle degassing history, styles of mantle convection, and volatile exchange...
- Boulos MS, Manuel OK (1972) Extinct radioactive nuclides and production of xenon isotopes in natural gas. Nature 235:150–152Google Scholar
- Melosh HJ (1990) Giant impacts and the thermal state of the early Earth. In: Newsom H, Jones J (eds) Origin of the Earth. Oxford University Press, Oxford, pp 69–83Google Scholar
- Pepin RO, Phinney D (1976) The formation interval of the Earth. Abstr Lunar Planet Sci Conf 7:682–684Google Scholar
- Schlichting HE, Mukhopadhyay S (2017) Atmospheric impact losses. Space Sci Rev (in review)Google Scholar
- Van Keken PE, Hacker BR, Syracuse EM, Abers GA (2011) Subduction factory: 4. Depth-dependent flux of H2O from subducting slabs worldwide. J Geophys Res Solid Earth 116:B01401. doi: 10.1029/2010jb007922
- Zahnle KJ (2015) Xenon fractionation and Archean hydrogen escape. 46th Lunar and planetary science conference, The Woodlands, p 1549, 16–20 March 2015Google Scholar