Morphology of Mn nodule samples from the Southwestern Pacific Ocean (Expedition MANGANESE 76, R/V Tangaroa)

Mn nodule shapes which can be described as spheroidal, ellipsoidal or polynucleate predominate in the Southwestern Pacific Ocean. The morphology, size, weight and number of nodules from each station of the MANGANESE 76, R/V Tangaroa expedition are summarized in Appendix I.