Section IV., 1884. [ 159 ] Trans. Roy. Soc. Canada. 



VII. — Om Some Deposits of Titanlferous Iron Ore in the Counties of Halihurton and 

 Hastings. Ontario. — By E. J. Chapman, Ph.D., LL. D. 



(Read May 23, 1884.) 



Numerous deposits of irou ore, chiefly the magnetic oxide, occur throughout the Coun- 

 ties of Victoria, Halihurton, Peterborough and Hastings, in Ontario. These deposits are, 

 for the greater part, if not wholly, in the form of irregular massess, or " stocks," mostly of 

 large dimensions, associated with dark-green pyroxenic or hornblendic rock-matter, in 

 gneissoid strata of Laurentian age. The iron ore, therefore, of this district occurs under 

 conditions closely similar to those of the great irou region of Areudal, in Norway, both 

 as regards its chemical nature and conditions of occurrence, and its association with horn- 

 blendic or pyroxenic matter, — the latter appearing in many cases partly to surround or en- 

 close the iron ore, as in the so-called " Skolars " or " Stockscheiders " (/. e., sheathed stocks) 

 of Swedish and German miners. In Halihurton and adjacent counties, these stocks appear 

 to lie, as a rule, in belts or zones of country extending in a general westerly and easterly 

 direction.' A belt of this kind, forming a comparatively high and broken range of consid- 

 erable breadth, lies on each side of the stream known as Burnt River, in the townships of 

 Snowdon, Glamorgan, Monmouth and Cardiff, and extends into Hastings County in the 

 townships of Faraday and Dungannon. 



In the range immediately south of Burnt River, the ore is chiefly of coarse-granular 

 texture, while in the more northern range the ore presents a remarkably crystalline and 

 cleavable structure. So striking are these structural peculiarities that one might almost 

 infer the existence of some deeply-seated connection between the separate deposits of each 

 respective range, were it not for the presence of a large amount of titanium in one of the 

 deposits, while in other places the ore is absolutely free from the slightest trace of that 

 metal. In this immediate district the titaniferous ore occurs in the more southern of these 

 two ranges; but, as far as my observations go, at one spot only, known as the "Pine Lake 

 location." This is on lot .35 of the fourth concession of Glamorgan, about half a mile 

 south of Burnt RiA^er, and a couple of miles, or rather less, south of the Monk road. The 

 mineral at this spot forms an enormous deposit of black magnetic ore, of granular texture, 

 rising abruptly in an immense ledge, or succession of ledges, to a height of from eighty to 

 one hundred feet above the general level of the ground. It is exposed in an easterly and 

 westerly direction, over a length of at least 1,800 feet, with an average width of about 140 

 feet. Actual measurements vary from seventy feet in some places to 198 in others. Variations 



of this kind are found to occur more or less in all stock-formed deposits, owing to the ir- 



« 



' Those known to the. writer, from personal insjjection, occur chiefly ae follows : — In Snowdon : lot 33, conces- 

 sion 3 ; lots 2G, 27, con. 4. In Glamorgan : lot 34, con. 2 ; lot 3.5, con. 4 ; lots 30, 31, con. 13 ; lot 27, con. 15. In Mon- 

 mouth ; lots 6, 7, con. 1 ; lot 6, con. 4 ; lot 5, con. 5 ; lots 7, 8, con. 6 ; lot 30, con. 13. In Herschel ; lot 32, con. 1. 

 In Faraday, near Bancroft village. In Dungannon : Lot 29, con. 13. 



