Gold Fields of Nova Scotia, Tema 20Government Printing Bureau, 1912 - 331 páginas |
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Términos y frases comunes
10-stamp mill 20 feet anticline apex arsenopyrite auriferous auriferous veins axis beds boulders brook carried continued cove cross vein cross-cut crushed deposits depth Devonian dip north dipping east discovery distance dome drift eastern exposed extending Faribault fault feet deep feet north feet south fold foot level foot shaft Gays River Geol Geology gneiss gold district Gold Mining Company gold-bearing series Goldenville formation granite Guysborough Guysborough county Halifax county Halifax formation Hill Isaac Harbour lake levels were driven lode Lunenburg county main shaft Messrs mineral Moose River Mount Uniacke north limb Nova Scotia operations ounces of gold pay-shoots Plough lead plunge production prospecting Province pyrite quartz quartz veins quartzite reopened reported rich rocks running scheelite schists shaft was sunk Sheet Sheet Harbour south limb southwest stoping strata surface syncline Tangier tons Touquoy tributers vertical shaft Waverley yield zone
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Página 4 - The attempts frequently made to enhance the value of the stock by declaring dividends, sometimes paid out of capital, but often by means of a process commonly known as " picking the eyes out of the mine...
Página 96 - ... different districts, and at one time or another there have been literally hundreds of producing mines. The usual method of working has been to sink incline shafts on the dip of the lead and follow the ore by means of levels ; but some mines have been opened up with vertical shafts. In a few cases mining has been carried to depths of 1000 ft.
Página xv - Scotia — -the most easterly Province of Canada — occupy that half of the Province lying along the Atlantic coast and extending the full length of the peninsula. The rocks consist of an immense thickness of quartzites' and slates folded in long east and west anticlines, and intruded by granite. The ore deposits are in the form of veins which are found aggregated on the domes of the plunging anticlines. Gold was discovered about fifty years ago, and since that time the district has received much...
Página 38 - The closing years of the eighteenth century, and the first two decades of the nineteenth, were marked by other signs of literary advance.
Página 268 - There was some excitement in the latter part of 1897 and the early part of 1898...
Página 261 - ... 5.) The ore minerals are found ;n lenses and veins in the " grey " schist in much the same manner as they occur in the deposits already described ; but at Galena they are also found deposited in sheet-like masses along the thrust plane at the contact of the " blue," and " grey " schists. They are also found occupying rents of a somewhat lenticular shape which cut through the planes of foliation and which appear to have been formed at the time the thrusting took place. The " blue " schist contains...
Página 289 - Biological Series. New species of shells collected by Mr. John Macoun at Barkley sound, Vancouver island, British Columbia — by William H. Dall and Paul Bartsch.
Página 298 - The Mineralogy of Nova Scotia, a Report to the Provincial Government,
Página 177 - ... whin. The fissility results chiefly from a rearrangement of the kaolin, so that it lies in the cleavage bands rather than in those of stratification. It is aided, but probably not formed, by secondary minerals. Those rocks which in the hand specimen appear most schistose, even the fine knotted schists mentioned above, have only a slightly larger amount of secondary material, the schistosity being due to a microscopical wavy cleavage that seems to be crenulated without much regard to the knots...
Página 259 - ... admit of a doubt ; therefore all the gold removed from the rocks must lie somewhere in the direction in which the glacier moved ; and this direction can be ascertained, for any particular locality, by observing the direction of the polished grooves and scratches on the surface of the rock in place." " In nearly all deposits of glacial drift, or boulder clay, on the south coast, more or less gold is found; but its economical value is much lessened by its dissemination through tenacious clay, too...