THE COAL-MINES OF OTAGO.
In a report which has just been prepared by Dr Hector, some interesting information is given regarding the coal seams of Otago. The Green w Xsla\id_ Uis-trict is estimated to have an area of eight square miles, containing coal of a workable quality and the Kaitangata coal-field is believed to extend uver 40 sqiiare niil'es. 11. is calculated that by working six Feet only from the centre of the Green IslSfi'd seam, the available yield will be 20,000,000 toils, and this will leave 46,500,000 tons still unworked. There are (5 .coal-mines in operation. The Otagfo colliery has ( b.eeii in work three years, lias a 16ft, seam, 6ft, of which has been worked, and employs nine men. Freeman's colliery has been 18 months in work, has a 16ft, seam, 6ft, of which has been worked ; total output, 5515 tons; 13 men employed. Samson's colliery has been in work threi: years, has a seam of 18ft, thickness, of which 6it, has been worked ; total output, '27,000 tons ; 18 men employed. Walton Park colliery has been in work seven years, bas a scam of 18ft, from 6ft, to Bft, of which has been worked; total output. 71,000 tons; 41 men employed. Saddle Hill colliery, two years in work, IBft, seam, 6 to 7 feet ol which has been worked, total output, 14,000 tons ; 9 men employed. Kaitongata colliery, 27ft, seam, 9 leet worked ; total output, 10,000 tons; 41 men employed. Total men employed in the six mines, 122 ; total output, 127,515 tons. Dr Hector reports that "in the Green Island district it seems probable that an area of about 8 square miles may be reckoned upon in which coal Jof a workable quality will be found, from which, on the present system of working, 6 feet only from tbe centre of the seam would give a yield of about 28,000,000 tons of coal, about 46,500,000 tons being left unworked. . . The average amount of coal won per day per man in the Green Island district h the least of any of the working collieries of New Zealand, and tbe cost of getting the same is higher here than at any other mine. The mines may be considered as very expensively worked, and as the coal is of an inferior quality, they cannot he expected to compete with the more valuable deposits of that mineral in other lccalhies." Of the Kaitangata mine be reports : •' This is the third mine which has been opened in this important coal-field which extends over 40 square mile", and is estimated to contain 100,000,000 tons of coal."
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THE COAL-MINES OF OTAGO., West Coast Times, Issue 2661, 10 October 1877
THE COAL-MINES OF OTAGO. West Coast Times, Issue 2661, 10 October 1877
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