Ni isotopes provide a glimpse of Earth’s pre-late-veneer mantle
Yong Xu,
Kristoffer Szilas,
Lingyu Zhang
et al.
Abstract:Moderately siderophile (e.g., Ni) and highly siderophile elements (HSEs) in the bulk silicate Earth (BSE) are believed to be partly or near-completely delivered by late accretion after the depletion caused by metallic core formation. However, the extent and rate of remixing of late-accreted materials that equilibrated with Earth’s pre-late-veneer mantle have long been debated. Observing evidence of this siderophile element-depleted pre-late-veneer mantle would provide powerful confirmation of this model of ear… Show more
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