MINING NEWS.

Auckland Star, Volume LX, Issue 215, 11 September 1929, Page 4

MINING NEWS.

BROKEN HILL. Addressing members of the Millions Club, Mr. C. J. Emery, president of the Broken Hill Mine Managers' Association, said that in 1910 the ore reserve forecasted by the experts at Broken Hill totalled only 13,085,000 tons. Since then more than 23,000,000 tons had been mined, and ore reserves to-day were at least equal to, and probably greater than, the figures given in 1910. Australia produced one-tenth of! the world's output of lead and was there-! fore the third largest producer. One of i Broken Hill's most serious competitors was j the Sullivan Mine (8.C.), where 1,665,580! tons of ore were mined last year, being j 500,000 tons greater output than the combined output of all the Broken Hill mines. Up to the end of 1928 ore worth £149,381,319 had been extracted at Broken Hill. I

MINE MANAGERS' REPORTS

Alburnia. —The drive north on the main Orlando lode from the crosscut at the winze has been extended sft, a total of 190 ft. The reef here still averages' 3ft wide, and is a strong, heavily mineralised body, carrying blende, antimony and silica. Colours of gold are still seen in the ore. The country rock on both walls is of a splendid class for making gold. The No. 2 winze on the hanglngwall branch of the Orlando lode under No. 2 rise has been sunk 3ft, , a total of 10ft. The reef here still averages 3ft 6in wide, and is a strong body of stone, carrying nice bright mineral blende and silica. Colours of gold are also seen In the ore at the Whau level. The reef that was in stringers last week is coming together, anc in the face the reef is loin wide and is improving.' The prospects here are encouraging, as the reef is improving as we get away from the break at the crosscut. Occidental Una.—During the week we have been engaged in placing timbers in position in the leading stope south-west of the shaft. The reef in this stope will average about 4ft in thickness, composed of veins of quartz averaging from lft down to 2in in width, and interlaced with country rock. The quartz looks kindly, and carries excellent mineral indications for gold being seen at any time. Ohinemuri,—At No. 4 level the drive south on the Camoola lode is 306 ft from No. 1 winze, and 230 ft north of the random of the main crosscut at No. 3 level. The Julia reef should be intersected in four weeks. The drive on the Silver Queen reef has been resumed upon a vein of high-grade hessite ore. It is anticipated that crushing will be commenced the week after next. Waiomo Sulphide. — During the period ended the 7th inst. the following works were in progress:—No. 3 level: No. 2 rise was extended 28ft and connected with No. 2 level in 150 ft. A stoping block is available north and south of this rise. No. 2 level: Ihis level has been reconditioned from its entrance to No. 2 rise. No. 1 winze has been retimbered and the stopes ( at the intermediate level 45ft above the No. 2 level are accessible. High grade milling ore is exposed here. The equipment of the new suction gas plant and air compressor ias been completed, and 3300 ft of piping ranging from 6in to 4in have connected this plant with the mine. The north drive on the' main reef will be resumed 10th inst, and stoping at No. 3 level and at the Intermediate level will be commenced during the ensuing week. The aerial tramway connection between the mine and mill will be commenced' immediately. At the mill the work of installing the oil flotation plant is in hand, and upon the completion of the aerial tramway, in six weeks, milling will be commenced.