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Testing the ureilite projectile hypothesis for the El’gygytgyn impact: Determination of siderophile element abundances and Os isotope ratios Vrije Universiteit Brussel
The geochemical nature of the impactites from International Continental Scientific Drilling Project--El'gygytgyn lake drill core 1C is compared with that of impact melt rock fragments collected near the western rim of the structure and literature data. Concentrations of major and trace elements, with special focus on siderophile metals Cr, Co, Ni, and the platinum group elements, and isotope ratios of osmium (Os), were determined to test the ...