Natural iron fertilization by the Eyjafjallajökull volcanic eruption.

Achterberg, E.P.; Mark Moore, C.; Henson, S.A.; Steigenberger, S.; Stohl, A.; Eckhardt, S.; Avendano, L.C.; Cassidy, M.; Hembury, D.; Klar, J.K.; Lucas, M.I.; Macey, A.I.; Marsay, C.M.; Ryan-Keogh, T.J.