The geology of the Coromandel subdivision, Hauraki, Auckland . gh the relatively large undeveloped areas in the proved zone of mineralisation cannot be toostrongly recommended. It is a matter for surprise that in an area which has yielded bullion to the value of over £400,000the deepest workings have attained no greater depth than some 400 ft. below the present caps of theveins ; this notwithstanding that bonanza ore comparable with that obtained from the surface-levelshas been mined from a depth of nearly 300 ft. Quite irrespective of the results which may attendfurther mine-development in th
The geology of the Coromandel subdivision, Hauraki, Auckland . gh the relatively large undeveloped areas in the proved zone of mineralisation cannot be toostrongly recommended. It is a matter for surprise that in an area which has yielded bullion to the value of over £400,000the deepest workings have attained no greater depth than some 400 ft. below the present caps of theveins ; this notwithstanding that bonanza ore comparable with that obtained from the surface-levelshas been mined from a depth of nearly 300 ft. Quite irrespective of the results which may attendfurther mine-development in the upper propylitic zone, the sinking of the Hauraki shaft in the hopeof intersecting another ore-bearing horizon is certainly a legitimate prospecting proposition. Thereis every likelihood that the andesites of these and the neighbouring mining claims will extend toconsiderable depths, judging by the conditions obtaining in the Kapanga Mine, which is nearer theoutcrops of the basement sedimentaries. o afoifoj i rsAtuJtJjj X><? KDl/ou ^VTy. o m — ^1 3 - a x w 115 The Welcome Find Claim and Hauraki Freehold. The Welcome Find Claim and the Hauraki Freehold, which are together held by the HaurakiFreehold Company (Limited), lie to the northward of the two claims just described. Map, page108, shows the relative positions of these mines ; map, page 112, on an enlarged scale, the WelcomeFind Claim (area, 8 acres 1 rood 8 poles) and its principal veins. The principal access to the underground workings is afforded by two openings—the WelcomeFind and the Hauraki North shafts. Equipment on the former shaft comprises a small Cornish pumpand a pair of winding-cages, operated by steam-power; that on the latter shaft, a pair of winding-engines operated by a rather meagre water-power. The greater part of the gold-output of these claims is referable to the early days of the field. Since1895 the vsdue of the gold and silver won amounts to £8,898. The greatest depth to whi
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