Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
nodules  | |
|---|---|
| UF | manganese nodules |
| RT | sedimentation |
| ocean floors | |
| oceanography | |
| metal ores | |
| marine geology | |
| secondary structures | |
| sedimentary structures | |
| manganese composition | |
| concretions | |
| Law of the Sea | |
| ferromanganese composition | |
| MANOP | |
| phosphate composition | |
| SN | As of 1981, restricted to nodules on the ocean floor, nodules within sediments in the ocean, and nodules in lakes. For nodules in non-sedimentary formations, use xenoliths. For nodules within sedimentary formations, such as chert nodules, use concretions. |