(Tables 1, page 354) Chemical composition of ferromanganese crusts from the Galapagos Ridge area - Willard S Moore; Peter R Vogt (PANGAEA, 2017)
In supplement to: Moore, WS; Vogt, PR (1976): Hydrothermal manganese crusts from two sites near the Galapagos spreading axis. Earth and Planetary Science Letters, 29(2), 349-356, https://doi.org/10.1016/0012-821X(76)90139-4