Report of the Bureau of Mines, Volume 8The Bureau, 1899 |
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Page 32
... cross - section of 8 by 10 feet . This shaft was being opened up , and put into condition for operations dur- ing the winter . A pump and hoisting plant Hoisting up to were about to be installed . this time had been done by derrick and ...
... cross - section of 8 by 10 feet . This shaft was being opened up , and put into condition for operations dur- ing the winter . A pump and hoisting plant Hoisting up to were about to be installed . this time had been done by derrick and ...
Page 33
... cross- section , and 98 feet deep , sloping 75 ° to the south . It was timbered by a collar with timbers laid " skin to skin " to a depth of 9 feet 9 inches . Below that the walls were sound enough to stand untimbered . Hoisting was ...
... cross- section , and 98 feet deep , sloping 75 ° to the south . It was timbered by a collar with timbers laid " skin to skin " to a depth of 9 feet 9 inches . Below that the walls were sound enough to stand untimbered . Hoisting was ...
Page 34
... cross - section 8 by 8 feet , and one on a S. E. course 100 feet long , with the same cross - section . Diamond drill holes are car- ried ahead of the workings as the breasts advance . 66 The tenth level stope has been carried up to the ...
... cross - section 8 by 8 feet , and one on a S. E. course 100 feet long , with the same cross - section . Diamond drill holes are car- ried ahead of the workings as the breasts advance . 66 The tenth level stope has been carried up to the ...
Page 35
... cross - head , work- ing in guides , which serves to guide the kibble up into the shaft house . A pit was being sunk about 40 feet s.E. from the shaft house , 25 feet in diameter , and 20 feet deep at the date of inspection . This was ...
... cross - head , work- ing in guides , which serves to guide the kibble up into the shaft house . A pit was being sunk about 40 feet s.E. from the shaft house , 25 feet in diameter , and 20 feet deep at the date of inspection . This was ...
Page 36
... cross - cuts . The cross - cut to the fourth level is on a curve , general direction w . of N. , length 23 feet . The fourth level opens out directly as a large stope , 51 feet long , 43 feet wide , and 60 feet high . The stope is ...
... cross - cuts . The cross - cut to the fourth level is on a curve , general direction w . of N. , length 23 feet . The fourth level opens out directly as a large stope , 51 feet long , 43 feet wide , and 60 feet high . The stope is ...
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Common terms and phrases
15 feet 30 feet Abitibi anorthosite assay band Batchawana beaches belt boulders Bruce Mines camp carbon-monoxide cent clay Company concession conglomerate consists containing copper corundum country rock creek cross-cut crosses crystals deposits depth diabase dikes distance drill east eruptive feet deep feet in width feet wide felsite felspar gneiss grained granite green schist Gros Cap hill hoisting hornblende Huronian inches iron island Keewatin lake Superior land latter Laurentian length limestone magnetite matte ment metal mica Michipicoton mill mineral Mountain mouth nepheline syenite nickel nickel carbonyl northeast occurs Ontario operations outcrops pebbles plagioclase Pucaswa pump pyrites quartz quartzite rapids Rat Portage region road runs S. S. Marie samples sand scapolite schist second level seen shaft shore side south drift spruce stope strike sunk surface terraces test pits Thessalon timber tion tons township vein
Popular passages
Page 64 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 108 - C. by hydrogen, was treated with pure carbon-monoxide in a glass tube at varying temperatures. In order to keep the poisonous carbon-monoxide out of the atmosphere of the laboratory, the gas escaping from the apparatus was ignited. They found to their surprise that while the tube containing the nickel was cooling, the flame of the escaping gas became luminous and increased in luminosity as the temperature sank below 100° C. Metallic spots were, moreover, deposited on a cold plate of porcelain held...
Page 108 - It is unnecessary to give a history of the metallurgy of nickel, but it may be well to state that Chronstet isolated the metal in the year 1751, and that Bergman confirmed his discovery in 1774. The methods hitherto employed for extracting the metal from its ores are very complicated ; they have involved concentrating the nickel either as a sulphide (matte or regulus), or as arsenide (speise) followed by either " dry " or " wet
Page 107 - ... have hitherto guided it. This process depends on the remarkable property possessed by nickel of forming a volatile compound with carbonic oxide, or, as it is called in modern chemical nomenclature, carbon-monoxide. When this gaseous compound is heated to 180
Page 17 - NE } of NE } of sec. 30. tp. 13, R. 5, W. 4th. This well has a diameter of 10 inch casing, and a depth of 937 feet. It was completed August 30, after striking a good flow of gas, with a pressure of 560 pounds at the end of twentyfour hours. A small flow of gas was struck at 550 feet, and continued down to 660 feet.
Page 216 - This state lias furnished nearly all the corundum of commerce for the United States, but the statistics of the mines and works have never been published. There has been much waste of effort in mining for the gem varieties, encouraged by occasional discoveries, but chiefly by the attractive colors in which the corundum is found. The whole process of mining and milling has had to be learned...
Page 217 - ... per acre. Instead of allowing speculators to take up and hold lands with a view to sell out their interests to miners and capitalists at a large profit, it is proposed that the advantage of acquiring lands upon the lowest terms shall go to the miner and manufacturer direct ; and in the case of parties who will undertake to conduct mining and treating operations on the largest and completest scale, and who can furnish satisfactory assurance that they possess the requisite capital for the proposed...
Page 216 - Perth, who at that time enjoyed some local reputation as a geologist (the mineral wilsonite is named after him), and who is still remembered as a man who paid considerable attention to the natural history of his district. The first place visited by them was the fourth lot on the eighth range of the township of Burgess, upon which Dr. "Wilson, a short time before, had discovered a body of apatite. Near by, on the second lot of the ninth range, was a deposit of copper pyrites in crystalline limestone,...
Page 216 - China, there are numerous occurrences of corundum in crystalline schists; and in almost every case the mineral is of the gem variety. As far as known to the writer, there are no deposits in Asia now exploited for use in the arts, saving the emery of Asia Minor. In the United States corundum is confined almost wholly to the region of the Appalachian Mountains, along a belt that extends from New Jersey to Alabama.
Page 216 - As to the limestone itself, whether occuring as disseminaied crystals through the gneiss or as great interfoliated masses, it is the opinion of Professor Judd that it has been neither organic nor due to direct chemical precipitation in its origin, but has resulted from a metamorphism of the lime-bearing felspars ; while during the process of change from basic felspar to scapolite. and from scapolite to hydrated alluminium silicates, and from these to alluminium oxide, " the slowly liberated oxide...