U enrichment and Th/U fractionation in Archean boninites: Implications for paleo-ocean oxygenation and U cycling at juvenile subduction zones
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2017.10.009
Abstract: Abstract Phanerozoic boninites record enrichments of U over Th, giving Th/U: 0.5–1.6, relative to intraoceanic island arc tholeiites (IAT) where Th/U averages 2.6. Uranium enrichment is attributed to incorporation of shallow, oxidized fluids, U-rich but… read more here.
Keywords: archean boninites; oxygenation; phanerozoic boninites; volcanic sequences ... See more keywords