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, Lynne J, Sims, K.W.W., Prytulak, J., Elliot, T., Mattielli, N., Blichert-Toft, J., Blusztajn, J., Dunbar, N., Devey, C., Mertz, D. F., Schilling, J. G., Murrell, M.
• Format: Text
• Language: unknown
• Published: Scholarship, Research, and Creative Work at Bryn Mawr College 2011
• Subjects: Earth Sciences; Jan Mayen; Kolbeinsey; Kolbeinsey Ridge
• Online Access: https://repository.brynmawr.edu/geo_pubs/2; https://doi.org/10.1016/j.gca.2011.08.020; https://repository.brynmawr.edu/context/geo_pubs/article/1003/viewcontent/Elkins_75.21.6300.pdf

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...