Understanding melt generation beneath the slow-spreading Kolbeinsey Ridge using 238U, 230Th, and 231Pa excesses

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Elkins, L. J., Sims, K. W. W., Prytulak, J., Elliott, T., Mattielli, N., Blichert-Toft, J., Blusztajn, J., Dunbar, N., Devey, Colin, Mertz, D. F., Schilling, J.-G., Murrell, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2011
• Subjects: Jan Mayen; Kolbeinsey; Kolbeinsey Ridge
• Online Access: https://oceanrep.geomar.de/id/eprint/12392/; https://oceanrep.geomar.de/id/eprint/12392/1/2011_Elkins__etal_GCA.pdf; https://oceanrep.geomar.de/id/eprint/12392/3/Elkins_Suppl.pdf; https://doi.org/10.1016/j.gca.2011.08.020

To examine the petrogenesis and sources of basalts from the Kolbeinsey Ridge, one of the shallowest locations along the global ridge system, we present new measurements of Nd, Sr, Hf, and Pb isotopes and U-series disequilibria on 32 axial basalts. Young Kolbeinsey basalts (full-spreading rate = 1.8...