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].

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Citation: Tolstikhin I. N. (2018), The late Earth's accretion: Processes and materials, Russ. J. Earth Sci., 18, ES1003, doi:10.2205/2018ES000614.

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