[astro-ph.EP] Ivuna-type (CI) carbonaceous chondrites have long served as proxies for the bulk Solar System composition due to their close agreement with solar photospheric abundances and enrichment in volatile elements […]
![Comparison of the averages of the Bennu aggregate samples (OREX-800033-0, OREX-800117-0, OREX-800107-0) from four different laboratories. Concentrations are double-normalized to Mg and the literature average values for CI chondrites (Lodders et al., 2025a). The uncertainties shown are ±1 SD. Elements that deviate by more than 20% from the CI average are labeled. Four extreme outliers from individual analyses have been excluded (see Table 7) and are not shown in this figure. - -[astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/11/Best-Bulk-Bennu.png?resize=1200%2C719&ssl=1)
[astro-ph.EP] Ivuna-type (CI) carbonaceous chondrites have long served as proxies for the bulk Solar System composition due to their close agreement with solar photospheric abundances and enrichment in volatile elements […]