Supplement to: Zhang, Z G; Du, Y S; Wu, C H; Fang, N Q; Yang, S X; Liu, J; Song, C B (2012): Growth of a polymetallic nodule from the northwestern continental margin of the South China Sea and its response to changes in the paleoceanographical environment of the Late Cenozoic. Science China Earth Sciences, 56(3), 453-463, https://doi.org/10.1007/s11430-012-4535-8