Differences in elemental abundances between CI chondrites and the solar photosphereOPEN ACCESS
A. G. J. Jurewicz, A. M. Amarsi, D. S. Burnett, N. Grevesse
MAPS, Version of Record online: 22 October 2024
LINK (OPEN ACCESS)
PDF (OPEN ACCESS)
“CI chondrites have been a proxy for the solar system since the mid-20th century. The photospheric and CI chondrite abundances (P and CI, respectively) show a strong correlation. CI as a proxy is also justified by the (i) smoothness of their abundances plotted as a function of odd mass number and (ii) agreement within the error of P as determined spectroscopically. But our statistical assessment of spectroscopic studies and solar wind from the Genesis mission indicates that the small, ~10%–30%, differences (residuals) between CI and P depend on the 50% condensation temperature (Tc50). So, if CI is to be used as a proxy for P, Cosmochemists may want to add a correction to individual elements. Our work is consistent with two published hypotheses: that (i) residuals are linear with Tc50 and (ii) that elements having Tc50 > 1343 K are depleted relative to those with 495 K < Tc50 < 1343 K in CI. We discuss other interpretations which are also feasible. Understanding these small differences of the CI and P for different elements and their variation with Tc50 can help constrain future models of solar system formation and the history of CI chondrites.”
Update (11 November 2025) :
Correction to Differences in Elemental Abundances Between CI Chondrites and the Solar Photosphere
MAPS, Version of Record online: 10 November 2025
“Jurewicz, A. J. G., Amarsi, A. M., Burnett, D. S., Grevesse, N. “Differences in Elemental Abundances between CI Chondrites and the Solar Photosphere.”Meteoritics & Planetary Science, vol. 59, no. 12, 2024, pp. 3193–214, https://doi.org/10.1111/maps.14272.
The .zip file included in the original manuscript was inadvertently omitted from the final published article. The .zip file has been included in the supporting information.
We apologize for this error.”
