Abstract
THE Canadian Department of Mines has just issued the second (final) volume of a report upon iron-ore occurrences in Canada by Messrs. E. Lindeman and L. L. Bolton. The first volume contains an account of the principal operating mines that may be considered active producers of iron-ore, and the second volume gives brief descriptions of a very large number of occurrences, some of which have been worked in the past, but are not now contributing to the output, whilst others have not been attacked. A considerable number of more detailed memoirs, such as those on the iron-ore deposits of Nova Scoria, on the Wabana iron-ore of Newfoundland, etc., have already been published by the Department of Mines, but the present wTork is particularly useful, as it not only summarises these, but also describes a very large number of occurrences about which no information has hitherto been available. A very useful feature, too, is the very complete series of references to any previously published descriptions of the mines or occurrences. Another, to which attention may with advantage be directed, is the large number of magnetometric maps that accompany the present report. It is pointed out in the introduction that particular attention has been devoted to these magnetometric methods, which have hitherto been but rarely employed outside Scandinavia, where they originated, because. it is desired to impress the value of this method of working upon Canadian mining engineers, since definite information can thus be obtained as to the size, shape, and distribution of deposits of magnetite, while magnetometry provides a permanent record that will serve as a guide in the further exploration or development of these deposits.
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Iron-Ore Occurrences in Canada . Nature 101, 495 (1918). https://doi.org/10.1038/101495b0
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DOI: https://doi.org/10.1038/101495b0