IRON ORE GEOLOGY

The magmatic forge

Time capsules of fluid, trapped within the oxide minerals from two iron ore deposits reveal an important role for sediment-derived carbonate–sulfate-rich melts in the concentration of iron, a crucial element for humanity’s development.

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Fig. 1: The Kiirunavaara iron ore mine, northern Sweden.

Esaias Baitel / Getty Images

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Correspondence to James M. Brenan.

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Brenan, J.M. The magmatic forge. Nat. Geosci. 13, 716–717 (2020). https://doi.org/10.1038/s41561-020-0644-8

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