"Rare earth element concentration" · 2 results · Global ETD Search

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Showing 1 to 2 of 2 for “"Rare earth element concentration"”.

Low rare earth element concentration impact glass from the K/T Boundary at Beloc

Fantone, Dennis WMassachusetts Institute of Technology2011

… K/T boundary layer at Beloc that is depleted in rare earth elements (REE) relative to continental crust. It is widely agreed that a large bolide struck the Yucatan Peninsula roughly 65 Ma spreading a worldwide iridium anomaly. However, there is only one case of a piece of the impactor being found …

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Investigating sediment size distributions and size-specific Sm-Nd isotopes as paleoceanographic proxy in the North Atlantic Ocean: reconstructing past deep-sea current speeds since Last Glacial Maximum

Li, YutingUniversity of Cambridge2018

… 30–40 and 40–63 µm) Sm-Nd isotopes and trace element concentrations are measured on 12 cores along the flow-path of Western Boundary Undercurrent and in the central North Atlantic since the Last glacial Maximum (LGM). North Atlantic is a useful place to explore how size-specific sediment …

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