wow....my beautiful susbtrate for metals ...also called ocean nodules. FeMn modules as u ask has more fe and Mn........lots of work has been done in India to extract metal fromm it
Francisco... this is a good review:
http://link.springer.com/chapter/10.1007%2F3-540-32144-6_11
saludos!
Ferromanganese nodules are seen on the ocean floor. They are considered as rich mineral deposits on ocean floor, however not yet exploited commercially. Pacific and Indian ocean floors (abyssal plains) are rich in ferromanganese nodules. These are especially rich in areas close to black smokers.
Francisco, I am not a geologist and I have come across what I believe are ferromanganese flat nodules on the river bed in an Irish river.. I am hoping to examine the distribution of these next year. I have heard that bacteria may form these and some might consider these to be stromatolites. I have found these up to 12cm in diameter. I have been unable to find any information on these elsewhere in Ireland. I am particularly interested to learn more about these and I would be interested to know how these form, how old these might be and what the composition is. I can send pictures should you be interested further. Dan Minchin [email protected]
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