Search

Shortly thereafter, in the wake of the "plate tectonics revolution" and working with Alan White, Ross noted the striking similarity between the average composition of the continental crust and andesite - one of the most diagnostic igneous rock types formed in subduction zones (Taylor & White, 1965). Stuart Ross Taylor, always known by his middle name Ross, was born in Ashburton, New Zealand, on November 26, 1925, and died peacefully in Canberra, Australia, on May 23, 2021, at the age of 95, surrounded by his wonderful and loving family. Brian was Goldschmidt's last student in Oslo (but finished his own Ph.D. in Stockholm due to the invasion of Norway) and Ross was always proud of the direct academic lineage to Goldschmidt (as are Ross's students and their students). In 2006, he led the famous Taylor Clan (Ross - Father; Larry - Son; Jeff - Holy Ghost) in an important paper: I The Moon: A Taylor perspective i (informally called Taylor-cubed). [Extracted from the article]

We report combined oxygen isotope and mineral-scale trace element analyses of amoeboid olivine aggregates ( AOA) and chondrules in ungrouped carbonaceous chondrite, Northwest Africa 5958. The trace element geochemistry of olivine in AOA, for the first time measured by LA- ICP- MS, is consistent with a condensation origin, although the shallow slope of its rare earth element ( REE) pattern is yet to be physically explained. Ferromagnesian silicates in type I chondrules resemble those in other carbonaceous chondrites both geochemically and isotopically, and we find a correlation between 16O enrichment and many incompatible elements in olivine. The variation in incompatible element concentrations may relate to varying amounts of olivine crystallization during a subisothermal stage of chondrule-forming events, the duration of which may be anticorrelated with the local solid/gas ratio if this was the determinant of oxygen isotopic ratios as proposed recently. While aqueous alteration has depleted many chondrule mesostases in REE, some chondrules show recognizable subdued group II-like patterns supporting the idea that the immediate precursors of chondrules were nebular condensates. [ABSTRACT FROM AUTHOR]