Pierre-Henri Blard, Marie Protin, Jean-Louis Tison, François Fripiat, Dorthe Dahl-Jensen, Jørgen Peder Steffensen, William C. Mahaney, Paul R. Bierman, Andrew J. Christ, Lee B. Corbett, et al.
We present new data from the debris-rich basal ice layers of the NEEM ice core (NW Greenland). Using mineralogical observations, SEM imagery, geochemical data from silicates (meteoric 10Be, εNd, 87Sr/86Sr) and organic material (C/N, δ13C), we characterize the source material, succession of previous glaciations and deglaciations and the paleoecological conditions during ice-free episodes. Meteoric 10Be data and grain features indicate that the ...