MINING NEWS

New Zealand Herald, Volume LXXIV, Issue 22725, 11 May 1937, Page 7

MINING NEWS

YIELDS OF COMPANIES Mataki (Murchison). —19oz. for 118 hours and 7500 yards. Nemona (West Coast). —570z. for 128 hours and 16,800 yards. Worksop Extended (West Coast). — 21 o:?. for 134 hours and 10,000 yards. Okarito (South Westland). —320z. lOdwt. for 129 hours. x TRANSVAAL OUTPUT The total estimated working profit of the gold mines of the Transvaal for February amounted to £2,576,105. Of this £2,567,261 was attributable to the Witwarersrand area and £8844 to outside districts. January figures were £2,728.541 for Witwatersrand and £11.321 for outside districts, making a total of £2,739,862. REPORTS OF MANAGERS Big River (Reefton).—Period ended May 4: Surface-T-Comnienced erecting shelter for trimming: timber. Repairs to surface bin will bo completed in two days. No. '2 level: Retimbering is being carried on in this level. No. 5 intermediate level: Have suspended driving here at present and started opening out a stope above the rise. Went up in a block of stone -Ift liin wide, which, as far as driven on, is opening out wider than in the dfive below. No. 5 level, south drive rise: Advanced 12ft (Sin to 33ft, with good stone in the north end of the rise, and mixed stone and reef track in the south end; 37 tons of stone "were delivered to the surface bins. Alexander (Reefton). —Report for April: No. (> crosscut —Two shifts were employed until April '27, and sinco that date three I shifts a day havo been worked for a footage of SUft. for the period, making '2soft from the surface The country passed through is good reefing country and carries a reef track at '23sft in from the surface. The reef track, when passed through, showed small runs of soft quartz, samples of this being sent for assay. The results are not, yet to hand. The face shows good country, with a small amount of water issuing from the roof. Stoping has been carried on as usual in No. 5 and the intermediate backs. No. 5 backs show no change, with the exception of a shortening of stoping ground on the extreme north end, hut. a corresponding lengthening occurs on the extreme south end of the block. Above the intermediate a crosscut was put out west and the faulted portion of the lode about the middle of the block recovered. The stone is from two to three feet wide and fine gold is visible. Mount Lyell (Tasmania). —For fortnight ended April '2S: Mines—North Mount Lyeli: Tons extracted, 41SIO; JOOft level, excavation pump chamber in progress; 700 ft level, pump chamber completed; 1000 ft level, No. 30 rise to lift through schisty ore. Royal Tharsis: Ore extracted, 307 tons. West Lyell: Tons extracted, '21,373. Prince Lyell: Tons extracted, 1S)!>8. Lyell Tharsis: Tons extracted, 03; Lyell Coinstock: Tons extracted, 3150, No. S level, main crosscut to '2l2ft through chloretic mineralised schist; south drive to 58ft through low-grade ore; No. !> level, main crosscut to 'JTft through- porphyry. Reduction works: Furnace in blast for full period; 7223 tons refinery anodes made for the current year. Concentrator: Mill operated 33(j hours and treated 33,711 tons ore, producing 2012 tons concentrates. Copper refinery: Tank house in operation throughout fortnight, 539 tons cathode copper being produced. Total for current year, 7502 tons.