Deep-Sea Manganese Nodule

Manganese nodules form in various settings, including the deep abyssal plains of the Pacific Ocean.

They are rick sources of metals (e.g., Co, REE).  They are therefore of interest because they act as important sinks for a range of elements in seawater, and they are a potential source of these elements via sea-floor mining.

Despite this interest, little is known about how they form and how they interact with seawater.  Do they grow purely by chemical processes, or is growth controlled by bacteria or other biological moderators? Detailed study of their internal structure can help shed light on these questions.

Professor Andy Saunders Geology

Lisa Barber 1065

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