Supplementary Mining Records; Consisting of Notes on the Iron and Phosphate Deposits of South Australia

Supplementary Mining Records; Consisting of Notes on the Iron and Phosphate Deposits of South Australia

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ...It is recommended that the shaft be carried to water-level, to obtain water for ore-dressing, and to ascertain what change may take place there. A considerable quantity of ore can still be stoped above the 70ft. level, which can be dressed up to marketable value, in which operation water would be of great aid. It was stated that 80 tons to 100 tons of ore, worth from 20 per cent. to 24 per cent., had been sent away. The prospects warrant further development of the mine, and extraction of the ore in sight. (I.M.R., 5-12-99.) WHEAL TURNER. The workings are on a round knob formation, rising abruptly to the height of about 350ft. above the level of the creek. The lode, so far as can be ascertained, can only be seen on the south-western side of the knob, about 50ft. from the top, running for some 50yds. in length; it is mineralised, the prevailing metal being copper, blue and green carbonates; the enclosing rock is chiefly quartzite. The principal workings consist of two tunnels and two shafts, also a water shaft, sunk some distance away. No. 1 tunnel has been driven about 90ft., passing through a lode formation about 20ft. in width, of low-grade copper material, very silicious, and intermixed with intrusive rock, the veins of ore being principally green carbonate. Fifty feet from the hill top, and slightly north of the tunnel, an opening has disclosed a vein of ironstone and malachite, but of very low value. No. 1 shaft, situated about 80yds. in a southerly direction, is an underlie shaft sunk on the lode formation to a depth of over 100ft.; the lode matter is of a sandy friable nature, and contains seams of copper-stained ironstone. No. 2 shaft, about 50yds. further in the same direction, is about 80ft. deep; it could not be examined, but, ..
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Product details

  • Paperback | 64 pages
  • 189 x 246 x 3mm | 132g
  • United States
  • English
  • black & white illustrations
  • 1236780604
  • 9781236780607