A Record of the Mines of South AustraliaE. Spiller, government printer, 1887 - 89 Seiten |
Häufige Begriffe und Wortgruppen
Adelaide assay atacamite auriferous Austin Australian BAROSSA bismuth Blinman brown iron Burra calcareous calcite cent chalcopyrite claims clayslate consists contains copper pyrites country rock Creek crushed deep depth diggings distance drive ECHUNGA fathoms ferruginous galena gold was found GOLDFIELD gossan granite green carbonate grey oxide gully GUMERACHA hill hundred of Onkaparinga iron pyrites ironstone Kapunda leaders limestone lode lode runs main shaft malachite micaceous miles east miles N.E. miles north miles south mineral Mining Company Moonta Mount mundic native copper neighbourhood north and south nuggets outcrop oxide of copper patches payable Port Augusta prospects quantity quartz quartz reef quartzite raised records obtainable red oxide reef rich sandstone schist shaft was sunk shafts were sunk silver silver-lead sinking situated slate South Australia specimens stains stone strike surface thick tons traversed TUNGKILLO tunnel Ulrich underlay shaft Wallaroo mines water level Waukaringa WHEAL width WOODSIDE yielded Yudnamutana
Beliebte Passagen
Seite 25 - There are five main lodes on the property, and from each of these various spurs and minor, lodes branch out, and are connected with the main lode by occasional cross veins. Including these there are twenty-seven lodes. Their direclion is north-westerly, and their underlay varies from 3ft.
Seite 17 - ... the ores (malachite and carbonate) being deposited with the greatest irregularity. The blue carbonate often occurred in round nodules, with crystals of the greatest regularity projecting from the surface. The malachite was found in the form of stalactite. in slabs incrusting fissures and irregularly-shaped masses, which had been deposited in cavities of the rocks.
Seite 26 - The peculiarity of this cupriferous district was disclosed by the removal of these ores and "the sinking of the shafts, and was that although the lodes continued regular, no further ore was met with ; and, as a rule, no stain of copper was seen until the depth of 5 to 10 fathoms (:W to 6O feet) was reached, when rich oxides and malleable copper deposits were struck, and after that black and grey sulphides.
Seite 17 - Far a number of years, however, the mine has been suffered to remain unworked, chiefly because the deposits originally worked were found to be depleted. For many years the average yield was from 10,000 to 13,000 tons of ore, yielding from 22 to 23 per cent, of copper. For the period of thirty years during which the mine was worked the output of ore amounted to 234,648 tons, equal to 51,622 tons of copper, valued at .£4,749,224.
Seite 86 - The amount of arsenic varies from 0 to 10 per cent. One variety from Spain included 10 per cent. of platinum, and another from Hohenstein some gold ; another from Tuscany 2-7 per cent, of mercury. These varieties give off, before the blowpipe, fumes of arsenic and...
Seite 17 - In the deeper levels regular lodes are met with, running north and south, containing very rich ore of malachite, red oxide, and grey sulphuret of copper ; but above the 30 fathom level there is no appearance of lodes, the ore (malachite and carbonate) being deposited with the greatest irregularity.
Seite 22 - ... difficulties, and the Report stated that ' The working of the Kanmantoo mine does not proceed satisfactorily, the principal lessee having, through other speculations, been obliged to suspend his payments.' In 1863 Mr. JB Austin wrote a short account of the mining, in which he said that ' the Company had raised about 4,000 tons of ore and opened a large extent of ground.
Seite 60 - On the day following a party of from fifty to sixty horsemen, headed by Mr. BT Finniss (Colonial Secretary), Mr. Chapman, Mr. Hampton, and a number of police troopers visited the place. Mr. W. Chapman was told to wash out some dirt in the presence of Mr. Finniss, and in order to render fraud more difficult of accomplishment he was made to take off his coat, and roll up his shirtsleeves.
Seite 85 - ... this. amount. Still when abundant, as it appears to be in the Mississippi valley, it is a valuable ore. It is easy of reduction by means of limestone as a flux. Dioptase is another silicate of copper, occurring in rhombohedral crystals and hexagonal prisms. R: R=126° 17'.
Seite 60 - ... place. Mr. Chapman was ordered to wash out some gold in the presence of the Secretary, and in order to guard against fraud, he was told to take off his coat and roll up his shirtsleeves. Mr. Chapman gathered up a dish of dirt and began to wash. Slowly the dirt was poured off, but not a speck of gold was to be seen. The crowd became angry and impatient ; they vowed that the whole thing was a swindle, and expressed a very strong desire to hang the prospector upon the limb of a neighbouring gum-tree....