QUEST FOR GOLD.

Gisborne Times, Volume LXXXIV, Issue 12911, 13 July 1936, Page 3

QUEST FOR GOLD.

NEARLY TWO MILKS BELOW SURFACE. 27 MILES OF REEF CUT JN A YEAR. JOHANNESBURG. .Juno 12. Tho statement was made that liming the past year 27 miles of goi-1 reef had been cut was made by Air. .lohn Martin, chairman of Crown Mines, Ltd., at that company's Minna 1 meeting. A lost interesting was Mr. Martin Y statement that this particular mine would, in time, be able to demonstrate what was possible on a largo scale basis in moving at maximum depth's. On tho Robinson Deep—the Rand’..deepest gold mine—development was proceeding at a depth of S.dOO feet vertical. At the City Deep, an adjoining mine, ore was being cut at n depth of 7,300 feet, and the Crown Alines were developing gold reef at 7GUO feet. Aha Martin added ; “What the ultimate limitations oi depth may prove to be cannot ho predicted with any degree of certainly, for in addition to the changing factor of economic feasibility, there are problems of heat, humidity and rock pressures, which conditions, at sonic stage which wo cannot yet determine, will place a limit beyond which it will he impracticable to go.” Ho disclosed that the CroAvn Alines had 32 miles of underground electric raihvay for hauling ore to the shaft. The mine had a record ye ir Avith the highest tonnage milled, and the working revenue Avas tho highest in the history of the company.