Secular variation of Nd and Pb-isotopes in ferromanganese crusts from the Atlantic, Indian and Pacific Oceans

• Published in: Earth and Planetary Science Letters
• Main Authors: O’Nions, R.K., Frank, Martin, von Blanckenburg, F., Ling, H.-F.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 1998
• Subjects: Burton; Indian; Pacific; North Atlantic
• Online Access: https://oceanrep.geomar.de/id/eprint/120/; https://oceanrep.geomar.de/id/eprint/120/1/1-s2.0-S0012821X97002070-main.pdf; https://doi.org/10.1016/S0012-821X(97)00207-0

Two ferromanganese crusts from the Indian Ocean and one from the Atlantic Ocean have been analysed for 10Be/9Be, 143Nd/144Nd and 208,207,206Pb/204Pb ratios as a function of depth beneath their growth surfaces. 10Be/9Be ratios provide growth rate estimates for these crusts between 1.55 and 2.82 mm Ma...