manganese nodule en · NOUN
Meanings
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A concretion of oxides of manganese and iron found on the seafloor.
1977 The most likely locations for early commercial mining of these seabed resources will be the Pacific Basin where there is a heavy concentration of manganese nodule sites at depths of between 12,500 feet and 17,500 feet. The Times - May 26, 1977 pg 27 col D
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| manganese nodules | Number=Plur | lexicographic |