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

• Published in: Geochimica et Cosmochimica Acta
• Main Authors: Elkins, J. L., Sims, K. W. W., Prytulak, J., Mattielli, N., Blichert-Toft, Janne, Blusztajn, J., Dunbar, N., Devey, C., Mertz, D. F., Schilling, J.-G., Murrell, M.
• Other Authors: Woods Hole Oceanographic Institution (WHOI), Department of Geology, Bryn Mawr College, Department of Geology and Geophysics Laramie, University of Wyoming (UW), Department of Atmospheric, Oceanic and Planetary Physics Oxford (AOPP), University of Oxford Oxford, School of Earth Sciences Bristol, University of Bristol Bristol, Département des Sciences de la Terre et de l'Environnement, Université libre de Bruxelles (ULB), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement Lyon (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), New Mexico Institute of Mining and Technology New Mexico Tech (NMT), Leibniz-Institut für Meereswissenschaften (IFM-GEOMAR), Institut für Geowwisenschaften, Johannes Gutenberg - Universität Mainz (JGU), University of Rhode Island, University of Rhode Island (URI), Los Alamos National Laboratory (LANL), NSF : OCE-0422278, OCE-1061037/1060434, INSU : French Institut National des Sciences de l'Univers
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2011
• Subjects: EAST PACIFIC RISE; U-SERIES DISEQUILIBRIA; MID-ATLANTIC RIDGE; NORWEGIAN-GREENLAND SEA; ND-PB ISOTOPE; TH-PA-RA; HETEROGENEOUS ICELAND PLUME; UPWELLING RATES BENEATH; TRACE-ELEMENT EVIDENCE; JUAN-DE-FUCA; [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; [SDE.MCG]Environmental Sciences/Global Changes; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Greenland; Jan Mayen; Kolbeinsey; Kolbeinsey Ridge; Mid-Atlantic Ridge; Pacific; Greenland Sea; Iceland
• Online Access: https://hal-insu.archives-ouvertes.fr/insu-00674633; https://doi.org/10.1016/j.gca.2011.08.020

International audience 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 (ful...