Jeremy J. Bellucci

TL;DR: In this paper, the authors used a fractional crystallization model to estimate the initial ages of the most siderophile elements (HSE) in the IVB system, including Re, Os, Ir, Ru, Pt, Rh, Pd and Au.

TL;DR: Concomitant high-precision U–Pb ages and Hf-isotope compositions of ancient zircons from the NWA 7034 Martian meteorite suggest that Mars must have formed its primordial crust extremely swiftly, less than 20 million years after the formation of the Solar System.

TL;DR: Age and compositional data for the newly discovered, paired and differentiated meteorites Graves Nunatak and GRA 06128 and 06129 are reported, bearing witness to incomplete differentiation of their parent asteroid and to previously unrecognized diversity of early-formed materials in the Solar System.

TL;DR: In this article, the authors showed that the monzonitic clasts in NWA 7533 are a product of a differentiation history that includes residence in a reservoir that formed prior to 4428 Ga with a μ-value ( 238 U/ 204 Pb) of at least 134 ± 17 ( 2 σ ) and a κ -value ( 232 Th/ 238 U) of ∼43 This μ -value is more than three times higher than any other documented Martian reservoir.

TL;DR: In this paper, the U-Pb systems of apatite and merrillite grains within four separate Apollo 14 impact melt breccia samples were analyzed by secondary ion mass spectrometry.