RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 18, ES1003, doi:10.2205/2018ES000614, 2018 Figure 2. Contribution of the s-process isotope $^{100}$Ru, $\displaystyle{\varepsilon^{100}}$Ru, increases with decreasing distance (in astronomical units, AU) from the Sun. More reduced materials like enstatite and ordinary chondrites have less negative $\varepsilon^{100}$Ru compared to more oxidized and volatile-rich materials, such as carbonaceous chondrites formed at greater heliocentric distance. $\displaystyle{\varepsilon^{100}\mathrm{Ru\!\!=\!\!10,000\!\!\times\!\!\{[ (\frac{^{100}Ru}{^{101}Ru})_{MET}/(\frac{^{100}Ru}{^{101}Ru})_{STAND}}]\!-1\!\}}$. Modified after Fischer-Gödde and Kleine [2017]. Copyright 2018 by the Geophysical Center RAS. Generated from LaTeX source by ELXpaper, v.1.5 software package. |