MINING NEWS

New Zealand Herald, Volume LXXII, Issue 22131, 10 June 1935, Page 5

MINING NEWS

YIELDS OF COMPANIES Blackwater (Reefton), return for May, with April figures in parentheses: —Crushed, 3712 (3354) tons, yielding 1653 (1424) fine ounces gold; value at 142s (1435) a fine ounce, £11,735 (£10,178); working costs, £6186 (£5430); working profit, £5549 (£4748); development expenditure. £465 (£623); capital expenditure, £223 (£681). •'Mossy Creek (West Coast). —Last week, 48oz* s l7dwt. for 131 hours' work and 12,784yd5. treated. Maori Gully (West Coast) .—Last week, 330z. 9dwt. for 111 hours' dredg-

ing. Worksop Extended (West Coast). — 18oz. 2dwt. for 86 hours' work. The dredge is working under temporary difficulties, dredging room being hampered on the return cut from the gully where the dredge was working recently. The difficulties may prevail for another three or four weeks.

Addison's Flat (West Coast). Last fortnight, 14oz. l<dwt. for 36 shifts.

WAIPORI PROSPECTING [by telegraph OWN correspondent] DUNEDEn, Sunday If the present activities of an English business firm, British Developments, Limited, are successful there is a probability that the Waipori, which was the scene of extensive gold-mining operations many years ago, will, within a year or two, regain at least some of its former glory. Prospecting operations have recently been carried out and as the area is under the control of the Dunedin City Corporation application has been made for prospecting rights. The Electric Power and Lighting Committee will recommend the council on Monday night that the applications should be granted under certain conditions and safeguards. Inquiries disclose that the applications made by the company are in connection with the prospective construction of an alluvial gold dredge to work an area of about 1000 acres. One boring machine has been working on the site for the past six weeks and it is intended to put other machines into operation shortly. The scheme will only be proceeded with if the results of the boring operations are satisfactory.

WHITE'S ELECTRIC DREDGING "White's Electric Gold Dredging Company, Limited (West Coast), has accepted the tender of a Sydney firm for construction of its dredge, the price being £15,987. The dredge ■will be electrically operated and will be practically an all-steel structure. It is expected that the dredge will be completed in 10 months.

CAIRNMUIR SLUICING Sluicing has been commenced by the Cairnmuir Sluicing Company, Limited, on a level clay bottom some 50 or 60ft. above the Kawarau River, Otago, and the plant is operating on a fairly stony deposit with a face of some 30ft. An ample supply of water is at present available.

REPORTS OF MANAGERS • Blackwater (Reefton). . Development: No. 10 level south was extended 21jft. in blank. A crosscut is being extended east. No. 12 level north was extended 89Jft., all on reef averaging 17£dwt. in value and 37in. wide. Progress in the Prohibition shaft has been retarded, pending completion of tho erection of new headgear. Mahakipawa (Murchison). —The crosscut west, starting from point 1170 ft. south and 163 ft. west, was driven a further loft. This face is still in schist bottom, the last round of which was much harder than previously. This has been stopped for the time being. The blocking strip from the west side of the south crosscut has been advanced to 16ft. in very good-looking wash, carrying fair values. The bottom is about 12in. above the floor, and is more or loss flat for the ful 1 Bft. The blocking strip from the east side of the south crosscut has been taken out for 7ft. in good-looking wash, carrying fair values. There is a narrow, V-shaped gutter in the face, the lowest point of \yhich is about 3ft. above the floor. I'alse bottom: The heavy rains last week caused a considerable increase in the amount of water, which prevented work for several days. We are not out of the timber yet.

Mataki (Murchison). —Last week the dredge pulled ahead 32ft. in ground the average depth of which was 17ft. The dredge had a good run for the week, but the work was hampered by floods "in the river, where the dredge worked only four shifts, one of these being sj>eiit cleaning up drift .brought down by the flood. There is no change to report in the bank portion of the cut.

Golden Dawn (Owharoa). —Development, No. 3 level: Drive north on No. 1 reef from north end of old stoi>es driven 40ft. The reef here is still very small with no change in the country rock. Bottom intermediate level: Drive south on branch reef westwall driven Bft., averaging 2ft, wide; value £2O 5s 2d a ton. Top intermediate level: Drive north on new reef from crosscut west off No. 1 reef driven oft; 2ft. wide, £2 17s 2d a ton. Stoping.—No. 3 level: No. 3 reef north of winze; 2ft. wide; £2 16s 9d a ton. No. 1 reef north and south of winze; 16in. wide; £2 8s 7d a ton. East wall branch of No. 3 reef south block; 18in. wide; £3 18s 6d a ton. Eastwall branch reef south of crosscut west in Leo Meagher's stopes, 12in. wide; £4 Is Id a ton. Bottom intermediate level: Westwall branch reef. 3ft. wide; £4 os 6d a ton. No. 1 reef south of Grey's old stopes, 3ft wide, £3 13s a ton. No' 3 reef eastwall branch south of Daily's old stopes; 2ft. wide; £3 13s od a ton.