Nielsen, S., Gannoun, A., Marnham, C., Burton, K., Halliday, A., & Hein, J. (2011). New age for ferromanganese crust 109D-C and implications for isotopic records of lead, neodymium, hafnium, and thallium in the Pliocene Indian Ocean. Paleoceanography, 26(2), https://doi.org/10.1029/2010pa002003