Mining Notes
p. 62 · Read in the full issue
Bulolo Gold Dredging, Ltd., reports that the deep drilling, which is continuing satisfactorily, has so far been confined to the upper half of the original Bulolo area, where payable values have been proved to depths varying from 60 to 180 feet.
While perhaps another six months’ drilling will be required to determine the commercial dredging depths, the drilling results to date indicate that the upper half of the Bulolo area will be dredged to a depth of between 60 and 120 feet, and that the recoverable values below the originally contem plated bottom at 22 feet will be between 25 and 40 cents per yard (gold calculated at 35 dollars per ounce), dependent in a measure on the dredging depth finally decided upon.
After the above testing is complete, drilling will be continued on the lower half of the original Bulolo area, and on an extensive contiguous area to the West. It is anticipated that the 4000 h.p.
Baiune hydro electric plant will be completed in November.
Samarai Gold Development.
With additional new compressor plant recently installed the mine manager states that rapid pro gress will now be made with development work.
New Guinea Prospectors, N.L.
New Guinea Prospectors, N.L., advises that a message from the company’s Samarai representative states that a dredging area of 940 acres has been pegged out and secured for the company in the Milne Bay goldfield area. Mr. R. J. Winters will leave by next steamer to examine and report on the areas secured.
Day Dawn (N.G.) Crushings.
Day Dawn (New Guinea), Ltd., reports that the records of crushings for the months of April, May, and June disclose that the aggregate crushed was 4572 tons for 2590 oz bullion, or ll.Sdwt bul lion per ton. The yield of fine gold per ton is approximately 14240 z. which should realise about £12,000.
Bulolo Dredge Production
Production of the Nos. 1,2, and 3 dredges of the Bulolo Gold Dredging Ltd. for July compares with that of the previous periods as follows: — May. June. July.
Nos. 1,2, and 3 dredges— Cubic yards .. .. 707,000 688,700 634,900 Bullion, oz 11,249 14,106 15,653 Gold fine, oz. .. 7,548 9,602 10,691 Aust. currency* .. £64,158 £81,617 £90,873 Per cubic yard .. /21.78 /28.44 Working profit .. £43,996 £60,579 £69,368 * At £A8/10/- per fine ounce.
No. 4 dredge is now complete, and should be digging to capacity on bedrock on the Bulowat area by the end of August. While the initial recoveries from No. 3 dredge on the Bulowat area were, for various reasons, below expectations, the yield from this dredge for the last few months has been fully up to the drilling.
Guinea Gold’S New Areas In
Papua.
Guinea Gold N.L. advises that Messrs. F. W.
R. Godden and H. E. Horne, mining engineers, lent from the technical staff of Placer Develop ment, Ltd., at Bulolo, have completed their ar rangements for the preliminary testing of the areas on the Lakekamu River Papua, which were secured in April for Guinea Gold No-Liability by Mr Nason-Jones. Full equipment has been taken to the field, and the testing work is to be carried out as rapidly as local conditions will permit.