The Minerals And Geology of Central Canada Comprising the Provinces of Ontario

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The Minerals And Geology of Central Canada Comprising the Provinces of Ontario
E J Edward John Chapman
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; in the average bog ores it equals about 45 or sometimes 50 per cent. ; and in the ochres, it varies from about 10 to 40 per cent. The average amount of water is about 15 per cent, or from 10 to 20 per cent. Brown and Bog Iron Ores are often smelted, and the Iron Ochres are valuable as a paint material. The varieties of this mineral hitherto found in Canada, comprise the more earthy varieties, Bog Iron Ore and Yellow Ochre. These belong 'to comparatively modern deposits, and, in places, indeed..., they are now under process of formation. The iron is taken up by water percolating through ferruginous strata, and is held in solution for a OF CENTRAL CANADA PART II. 87 time as bicarbonate or in combination with organic acids ; arid after- wards, by absorption of oxygen, it becomes converted into insoluble sesquioxide, and is thus deposited in a hydrated condition, mixed more or less with earthy and other impurities. In the Province of Ontario, Bog Iron Ore occurs in small quanti- ties in almost every Township, but some of the more important de- posits lie in the townships of Charlotteville, Middletown and Wind- ham, in Norfolk County, on Lake Erie ; also in Camden Township in Kent, West Qwillimbury in Simcoe, Bastard in Leeds, March and Fitzroy, and also Yaudreuil, on the Ottawa, and elsewhere.

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