1. Manganese nodules are expected to exist in the Southern Ocean.2. Land supplies turned out to be more plentiful and accessible than the manganese nodules . 3. It also is reported from deep sea manganese nodules . 4. He was an expert in the field of the creation of marine Manganese nodule concretions. 5. Attempts to find economically viable methods of harvesting manganese nodules were abandoned in the 1970s. 6. These resources, also called manganese nodules , contain varying amounts of manganese, cobalt, copper and nickel. 7. The cover story used was that the salvage vessel was engaged in commercial manganese nodule mining. 8. This was profoundly due to a dispute over mineral resources, particularly manganese nodules in the deep-oceans. 9. This is especially true of manganese nodules . 10. Evidence of manganese nodules have been noted in the new bypass cutting recently constructed near the village.
