Stuart Ross Taylor (1925-2021)
Stuart Ross Taylor, Leonard Medalist (1998) and former president of the Meteoritical Society (1989-1990) passed away at his home in Canberra, Australia, this month. Ross was a geochemist who made seminal contributions to our understanding of the origin and evolution of Earth’s continental crust, and the composition and origin of the Moon, meteorites, tektites, and the solar system. More…
Pellas-Ryder Award for 2021 to Jan L. Hellmann
Jan L. Hellmann, currently a postdoc at the Institut für Planetologie, University of Münster, Germany, is awarded the 2021 Pellas-Ryder Award for his paper titled “Origin of volatile element depletion among carbonaceous chondrites” published in Earth & Planetary Science Letters in 2020. Jan Hellmann was a PhD student at the Institut für Planetologie, University of Münster, working with Thorsten Kleine, when the paper was submitted. He analyzed the isotopic composition of tellurium, a moderately volatile element, in carbonaceous chondrites to find that mass-dependent Te isotope fractionation correlated with matrix mass fraction and nucleosynthetic chromium (Cr-54) isotope compositions. More…