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Definition of manganese nodule in English: manganese nodulenoun A small concretion consisting of manganese and iron oxides, occurring in large numbers in ocean-floor sediment. Example sentencesExamples - It was on this leg of the voyage that they encountered the largest field of manganese nodules they had yet chanced across.
- Crusts of iron-manganese oxides and manganese nodules occur, particularly in red clays.
- But as Challenger approached the West Indies the crew encountered a phenomenon that dwarfed in importance even the discovery of manganese nodules.
- The manganese nodules in Table 1 were those collected from the sea-bed of off-shore California.
- A co-occurrence of these two species is known from only one locality, where they were collected from manganese nodules immediately above the Grimmeri Bed.
Definition of manganese nodule in US English: manganese nodulenoun A small concretion consisting of manganese and iron oxides, occurring in large numbers in ocean-floor sediment. Example sentencesExamples - The manganese nodules in Table 1 were those collected from the sea-bed of off-shore California.
- Crusts of iron-manganese oxides and manganese nodules occur, particularly in red clays.
- A co-occurrence of these two species is known from only one locality, where they were collected from manganese nodules immediately above the Grimmeri Bed.
- It was on this leg of the voyage that they encountered the largest field of manganese nodules they had yet chanced across.
- But as Challenger approached the West Indies the crew encountered a phenomenon that dwarfed in importance even the discovery of manganese nodules.
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