Conservation of Coal in Canada With Notes On the Principal Coal Mines
Conservation of Coal in Canada With Notes On the Principal Coal Mines
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Mine ptimp. Alberta Railway and Irrigation Company This company operates the Gait mines at Lethbridge, and at the present time, mining is being carried on in two mines — -No. 3 and No. 6. No. 6 Mine This mine is situated three miles from Lethbridge. A spur, 3 miles in length, connects the mine with the Canadian Pacific ry. At that point. The coal is lignitic in character, and occurs in a fiat or slightly dipping seam, averaging about 4 ft. 4 in. In thickness. The following is an approximate sec...tion taken in one of the rooms : Draw slate 11 in. Clay ' I " Coal 18 " Clay 2 " Coal 30 " Black-j' ck pavement Method of Mining. — The mine is worked from a perpendicular, four-compartment shaft, 20 ft. X 21 ft. And 400 ft. Deep. The elevation of the shaft-collar is about 2936 ft. Above sea-level. The seam is frequently disturbed by faults, and, at such faults, a little gas is occasionally encountered. The system of mining is pillar-and-room. (See sketch, p. 108). Every 2000 feet, four parallel main entries are driven for the main haulage and ventilation roads.
What to read after Conservation of Coal in Canada With Notes On the Principal Coal Mines?
You can find similar books in the "Read Also" column, or choose other free books by Canada Commission of Conservation Committee On M to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Mine ptimp. Alberta Railway and Irrigation Company This company operates the Gait mines at Lethbridge, and at the present time, mining is being carried on in two mines — -No. 3 and No. 6. No. 6 Mine This mine is situated three miles from Lethbridge. A spur, 3 miles in length, connects the mine with the Canadian Pacific ry. At that point. The coal is lignitic in character, and occurs in a fiat or slightly dipping seam, averaging about 4 ft. 4 in. In thickness. The following is an approximate sec...tion taken in one of the rooms : Draw slate 11 in. Clay ' I " Coal 18 " Clay 2 " Coal 30 " Black-j' ck pavement Method of Mining. — The mine is worked from a perpendicular, four-compartment shaft, 20 ft. X 21 ft. And 400 ft. Deep. The elevation of the shaft-collar is about 2936 ft. Above sea-level. The seam is frequently disturbed by faults, and, at such faults, a little gas is occasionally encountered. The system of mining is pillar-and-room. (See sketch, p. 108). Every 2000 feet, four parallel main entries are driven for the main haulage and ventilation roads.
What to read after Conservation of Coal in Canada With Notes On the Principal Coal Mines?
You can find similar books in the "Read Also" column, or choose other free books by Canada Commission of Conservation Committee On M to read onlineMoreLess
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