MINING NEWS.

Auckland Star, Volume LXVII, Issue 184, 5 August 1936, Page 13

MINING NEWS.

MARTHA COMPANY.

REPORT OF OPERATIONS.

SUPERINTENDENT'S REPORT

A brief telegraphed summary of operations at the Martha mine for tlie four week's ended June 0 has already appeared in the "Star." The extended report of the superintendent, Mr. 11. W. Hopkins, has now become available and follows: — Martha Area. No. 14 Level.—lOrlward Lode, Trout Block: Truck sampling of the excess ore drawn during llie period averaged —-I/O per ton. Martha Lode, Gin ISlock : Ore breaking has been carried to l'Z'-iit above tlie level. The ore drawn during the period assayed 2-/7 pel' ton. No. 13 Level.—Martha Lode, Cow F>lock : Ore breaking was in progress at 106 ft above the level; the ore drawn during tlie period averaged 23/2 per ton.

No. 3 2 Level.—Royal Lode, Reptile ISlock : Sloping was in progress at lOiil't above the level: the broken ore drawn during the period averaged IG/S per ton. Martha l.ode. Webb East Block : Ore breakins is at 38ft above tlie level. Owing to the value falling, the stope has been shortened for a length of 38ft measuring from flie east end. A width of oft on tlie south side will also bo left for the same reason. The broken ore drawn during tlie period averaged 1-1/ per ton. Edward Lode, south from Eel Crosscut: At 731 ft. a crosscut was commenced from tlie east wall with the following results:—o-51't, quartz and country mixed, 1/2 per ton; S-Oft, quartz containing Ift of galena and zinc blende, assay value 4/8 per ton ; 0-13 ft, quartz and country mixed, 1/0 per ton. The remainder of the crosscut was in country. Snapper rise, was commenced at 720 ft and is up 37Jft. Assay value at 27ft is 1/3 tier ton, over 3ft of quartz with country on both sides.

No. 11 revel. —Martha Lode, east of No. 2 sliaft 8.10. Crosscut : The old face here was resumed and driven a short distance. The quartz; was very hard and the value low. Further work is stopped. Dreadnought Lode, S. Branch. Bomb Block : Ore breaking was in operation at 102 ft uhove the level. The broken ore drawn during the period averaged 1!)/S per ton.

No. 10 (40ft) J.t'vo],—Km pi l'c Lode. North Section : A shrinkage block is being prepared extending from 47ft to Ssft east of Evesham rise. The level lnis been widened to 7ft.

No. 10 Level.—Martha Lode, Bnllson Block: Ore breaking is now at 32ft above the 0711 Intermediate level; the broken ore drawn during the period averaged 18/8 per ton. Britannia Block: Ore breaking is lii operation at lOi't above- the intermediate level.

No. 9 Level.—Welcome Lode, Richardson rise at 130 ft west of No. 2 shaft, N.W. crosscut, was put up sSft. At 50ft np a crosscut was commenced north from the south wall, exposing 30ft of quartz of low value. The crosscut is being continued. Martha Loile: Ore breaking in Foal BloeU lias been carried to 65ft above the level, rlie broken ore drawn during the period averaged liG/ per ton.

No. S Level.—Edward Lode, Roach West Crosscut : The crosscut has been continued to lo9Jft, Several small veins were intersected, the larger ones being at 94ft, where there Is 2ft of quartz assaying S/i per (on, anil at 113 ft, 2Jft assaying 2/3 per ton The crosscut is being continued. Koyal iootwall Gangway, cast of No. 5 shaft, new S.E. crosscut: This was aduV'r'' U 7 : ift country, making a total of . 4oit. Welcome Lode: Hichardson winze was commenced in country in the south wali of lode, as the old level had collapsed, lhe winze will be inclined north as soon as practicable to get into toucli with the lode. A depth of 10ft has been reached.

'>~oro ' Level.—North-west crosscut at -ouit west of I'ayne crosscut was extended , 11. making a total of 324 ft. At 240 ft the crosscut passed through a reef formation lift wide, the first 21't being quartz assaying 0/0 IH . P ton> fh( , inin „ iilli U ln^x^l,re Quartz and country of little or no value. From 2GI)Ct to 1277 ft .VUI? 0 } VU „-™ cciato,:l material, from 7 JV ~ 1 s,)^t white country, mid from this point to the face is grey andesite with brown joints. The crosscut is being continued.

No. G T.ovol.—Martha T.oiTe, North "•ranch : The drive east of Giddens crosscut was continued to llTAft. The vein averaged about Ift in width of very good quality ore. Giddens rise has connected to Giddens winze.

No. 5 Level.—-Martha Lode, North Rranch at 140 ft in SOOft west crosscut : Cornes rise was commenced at 15ft west and put up 70ft. The width of the lode is about lift of good grade.

No. 4 Level.—Martha Lode. North Branch, vein at 181 ft in Gordon N. crosscut: The stoping of Worth Block has been commenced. Martha Lode, North Branch, North loop at 220 ft in Gordon N. crosscut, Dili toll Bloclt: The level has been widened for a total length of 103 ft and partly heightened for stoping timbers. No. 2 Level.—Edward Lode. Cod Block . Ore breaking was completed at S3 ft up. the reef giving out in blue slidy ground. Drive south on tile east part of lode at 100 ft in No. 2 shaft, S.E. crosscut: A distance of 20l't has been driven south in ore of good grade, about 2Jft wide. Bell Keet, west of Hooper crosscut: The west drive was extended 70ft. total 420 ft. The average assay value from 3.10 ft to 420 ft is 'J/0 per ton. The width of the lode is about 3ft. Grand Junction Area. Junction No. S Level.—TEoyal Lode : No. 4 winze at 425 ft west of No." 1 shaft, S.K. crosscut, has been sunk 30ft. The average assay value to 33ft is 57/2 per ton, over an average width of 3ft, the south wall of reef being exposed. Lowrie Block: -!!)(» tons were drawn of an average assay value of 23/4 per ton.

Junction No. 7 Level. —George Lode, intermediate level at 59ft up : The drive west from Ward rise was continued to 03 J ft. The average assay value from 12ft to 50ft is 30/7 per toil. The width of quartz is about sft. The east drive was advanced to 20ft, a sample taken at llift over a width of 3ft, the south wall being seen, showed ore of good grade. Lode, Wells South Block : Truck sampling of the broken ore drawn, 441 tons, aver aged 25/ per ton. Empire Lode, intermediate level at 03ft up : The east drive from No. IS pass was continued to 71ft, where work was stopped, the value having fallen. A shrinkage block, to be known as No. IS pass block, is now in course of preparation, and the level has been widened from 72ft west to lift east of No. IS pass.

Junction No. C Levels—Royal Lode, No. 10 I'ass Block : 310 tons were drawn from western part of the block, assaying l</9 per ton. lioyal Lode, South I'art, intermediate level at 51ft up from Gibbons rise : Cutting down the floor of level was continued and stoping timbers are being placed in position; 15S tons were obtained from this work, assaying 18/9 per ton. Intermediate level at 21ft up Dye rise: Ore breaking is now in progress in Dye block at 23ft above the level, and 97 tons were obtained, assaying 20/ per ton. a i' l ' Co. s No. 9 Level. —Ko.val Lode, ,• Tass Block : The arch under Junction o level was shot out for a further length of 12ft, and some of the boulders in jNo. 1 pass block broken up.

MINE MANAGERS' REPORTS. Maerewlienua GolclfieHls Development — The secretary reports the following -progress for July: One wash-up, No. 30 took place on July !), which produced approximately lOoz 12dwt of gold, estimated at fiU 1«/. Approximate production expenditure, foO. The severe frosts diminished the water supply, so that most of the time was devoted to tunnel work and the necessary preparations for installing gold-saving devices at Golden Gully. The tunnel, which was reopened early in July, required a considerable amount of additional excavating work, so as to assure its safety from blockages in the future. Work on this job is still in progress. A considerable a.mount of snow lias fallen, and as soon as the thaw sets in an ample water supply can be anticipated, which will permit gold production in Duffers Gully and Golden Gully simultaneously. The extension money (£121) for the month of August in j connection with the option t<j London has | been received. ,