Defining the age of the Moon has proven to be an elusive task because it requires reliably
dating lunar samples using radiometric isotopic systems that record fractionation of parent …

The short-lived Hf-W isotope system has a wide range of important applications in
cosmochemistry and geochemistry. The siderophile behavior of W, combined with the …

New tungsten isotope data for modern ocean island basalts (OIB) from Hawaii, Samoa, and
Iceland reveal variable 182W/184W, ranging from that of the ambient upper mantle to ratios …

Abstract The short-lived 182 Hf-182 W isotope system (t 1/2= 9 Ma) left evidence in both
ancient and modern terrestrial rock record of processes that took place during the earliest …

Return of samples from the surface of Mars has been a goal of the international Mars
science community for many years. Affirmation by NASA and ESA of the importance of Mars …

The accretion of volatile-rich material from the outer Solar System represents a crucial
prerequisite for Earth to develop oceans and become a habitable planet,,–. However, the …

How much of Earth's compositional variation dates to processes that occurred during planet
formation remains an unanswered question. High-precision tungsten isotopic data from …

New Os isotope and highly siderophile element (HSE) abundance data, in combination with
lithophile trace element and Sm–Nd, Lu–Hf, and Hf–W isotope data, are reported for …

Overabundances in highly siderophile elements (HSEs) of Earth's mantle can be explained
by conveyance from a singular, immense (D∼ 3000 km)“Late Veneer” impactor of chondritic …

Abstract New Sm‐Nd, Lu‐Hf, Hf‐W, and Re‐Os isotope data, in combination with highly
siderophile element (HSE, including Re, Os, Ir, Ru, Pt, and Pd) and W abundances, are …