Abstract
This is the largest of the iron ore ranges of the Lake Superior area. The ores are, or are derived from, taconite; a cherty iron-rich chemical sediment, possibly of organic origin. Some of the ores are rich enough to be shipped directly, but others are magnetite-bearing tactonite from which a concentrate can be made. The Lake Superior is one of a number of very large Proterozoic iron-rich sedimentary basins.
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Further Reading
Leith, C. K. (1903), The Mesabi Iron-bearing District of Minnesota. U.S. Geol. Surv. Mono. 43, 316pp. [This beautifully produced, if old, volume is still worth a look.]
Marsden, R. W. et. al., (1968), The Mesabi Iron Range, Minnesota, pp. 519–27. In: Ore Deposits of the United Statesy 1933–1967. (Ridge, J. D., ed.), Am. Inst. of. Met. and Pet. Eng., New York, 1968. [Good modern summary with bibliography of all the other relevant literature to that date; the same volume also contains a general paper on the Lake Superior iron ores by R. W. Marsden, as well as papers on the other ranges.]
Morey, G. B. (1973), The Mesabi, Gunflint and Cuyuna Ranges, Minnesota, pp. 193–208. In: Unesco, Genesis of Pre-Cambrian Iron and Manganese Deposits. Proceedings of the Kiev Symposium, August 1970. UNESCO Earth Science Series No. 9, UNESCO, Paris 1973.
Morey, G. B. (1973), The Mesabi Range. In: Geology of Minnesota, A Centenary Volume. Geol. Surv. of Minnesota, pp. 204–17. [These two papers give a modern review of the deposits and their geological setting. Note also that Econ. Geol. 68 (7) is devoted to Pre-Cambrian iron deposits and contains several good review papers.]
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© 1979 Colin J. Dixon
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Dixon, C.J. (1979). The Mesabi Iron Range — U.S.A.. In: Atlas of Economic Mineral Deposits. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6511-2_14
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