Provenance and distribution of zinc in terrestrial planets.

ABSTRACT: The nucleosynthetic Zn isotope compositions of planetary materials shed light on the sources of Zn and other similarly volatile elements during terrestrial planet formation. Previous results for Earth revealed that it acquired its Zn inventory primarily from primitive, undifferentiated bodies originating from both the inner and outer Solar System. To further investigate this, we obtained new nucleosynthetic Zn isotope data for six Martian meteorites and five Lunar samples. Our Martian data are consistent with previous findings which show that, despite being more volatile-rich than Earth, Mars's Zn was derived almost entirely from inner Solar System sources. We incorporated these results into a comprehensive mixing model, including eight additional isotope systems and major element abundanc

SUBMITTER: Martins R 

PROVIDER: S-EPMC12627581 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature