Report of the Bureau of Mines, Volume 8The Bureau, 1899 |
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Page 45
... consists of the following Third level , north drift , extended to 110 feet . Fourth level , at a depth of 400 feet ; south drift 22 feet ; north drift 22 feet . All drifts are seven feet high , varying in width from four to 15 feet . A ...
... consists of the following Third level , north drift , extended to 110 feet . Fourth level , at a depth of 400 feet ; south drift 22 feet ; north drift 22 feet . All drifts are seven feet high , varying in width from four to 15 feet . A ...
Page 46
... consists of 36 feet of drifting east Measure- ments . on the second level . Stoping has also progressed in the first ... consist of shaft No. 1 , 46 feet deep , with a cross - cut north 30 feet at a depth of 40 feet , and shaft . No. 2 ...
... consists of 36 feet of drifting east Measure- ments . on the second level . Stoping has also progressed in the first ... consist of shaft No. 1 , 46 feet deep , with a cross - cut north 30 feet at a depth of 40 feet , and shaft . No. 2 ...
Page 47
... consists of a Blake crusher , 7 " by 10 " jaws , two batteries of 950 lb. stamps , two Challenge ore feeders , four compartment Browne's hydraulic sizer , three Frue vanners , six - foot belts , one Con- way automatic cut - off engine ...
... consists of a Blake crusher , 7 " by 10 " jaws , two batteries of 950 lb. stamps , two Challenge ore feeders , four compartment Browne's hydraulic sizer , three Frue vanners , six - foot belts , one Con- way automatic cut - off engine ...
Page 51
... consists of running a drift from the shaft to the ore body , and into the same ; raising to , or sinking from , the level above for ventilation and from this winze drifting south along the vein at a dis- tance of 15 or 18 feet below the ...
... consists of running a drift from the shaft to the ore body , and into the same ; raising to , or sinking from , the level above for ventilation and from this winze drifting south along the vein at a dis- tance of 15 or 18 feet below the ...
Page 54
... consists of a five by eight inch duplex hoist , 1,300 lb. steel bucket and a g - in . crucible steel cable running ... consist of roomy and neatly con- structed buildings situated on Chien d'Or island , about a half mile from the crib ...
... consists of a five by eight inch duplex hoist , 1,300 lb. steel bucket and a g - in . crucible steel cable running ... consist of roomy and neatly con- structed buildings situated on Chien d'Or island , about a half mile from the crib ...
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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 concession conglomerate consists containing copper corundum country rock creek cross-cut crosses crystals deposits depth diabase dikes distance drill east eight eruptive feet deep feet in width felsite felspar foot gneiss 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 Mining Company 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 sand scapolite schist second level shaft shore side south drift spruce stope strike sunk surface terraces test pits Thessalon timber tion tons township vein wall
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...