Abstract
This is one of the best examples of an oolitic, sedimentary iron deposit (sometimes called ‘minette’), a type which occurs in marine sediments from late Pre-Cambrian to mid-Tertiary. This example is one of a group that occur round the edge of a large basin complex in north-west Europe, filled with sediments of Permian to Recent age, the deposits being largely Mid or Lower Jurassic. In other parts of the world, notably southern Russia, a very similar type of deposit occurs, but contains manganese rather than iron.
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Further Reading
Hallam, A. (1975), Jurassic Environments. Cambridge University Press, Cambridge, 269pp. [A very good, up-to-date essay on the subject with a lot to say on the problems of ironstones — sets the subject in its local, regional and global perspective.]
Hollingworth, S. E. and Taylor, J. H. (1951), The Northampton Sand Ironstone — Stratigraphy, Structure and Reserves. Mem. Geol. Surv. Great Britain, London, H.M.S.O. 211pp. [The principal work on the district and a comprehensive one.]
Taylor, J. H. (1949), Petrology of the Northampton Sand Formation. Mem. Geol. Surv. Great Britain, London, H.M.S.O. IIIpp. [Very detailed account of the ores themselves.]
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© 1979 Colin J. Dixon
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Dixon, C.J. (1979). The Iron Deposits of the Northampton District — U.K.. In: Atlas of Economic Mineral Deposits. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6511-2_13
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DOI: https://doi.org/10.1007/978-94-011-6511-2_13
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-011-6513-6
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