Genesis of Ferromanganese Deposits-Diagnostic Criteria for Recent and Old Deposits

  • Kurt Boström
Part of the NATO Conference Series book series (NATOCS, volume 12)


Marine iron manganese deposits show a greater chemical variability than was realized only 10 years ago. As a consequence correct conclusions regarding the genesis of a given deposit frequently require knowledge about several geochemical parameters and preferably about accumulation rates and spatial relations vis-a-vis e.g. spreading centers.

For old deposits the analogous interpretation is considerably more difficult, since evidence may be missing for a nearby spreading center in the past and since elevated accumulation rates may not be detectable. Hence petrographic and geochemical characteristics may be the only ones available for a genetic interpretation. I will here show that a combination of geochemical relations such as Fe/Ti — Al/(A1+Fe+Mn), Fe/Mn, Fe-Mn-(Co+Ni+Cu), U/Th and REE (rare earth element) data may yield conclusive genetic information.


Accumulation Rate Spreading Center Hydrothermal Deposit Manganese Nodule Pelagic Sediment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • Kurt Boström
    • 1
  1. 1.Department of GeologyUniversity of StockholmStockholmSweden

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