Caralue Bluff. Annual reports and final report to licence expiry/full surrender, for the period 10/1/1997 to 9/1/2002.
Published: 13 Feb 1902
Created: 11 Nov 2024
Revised: 11 Nov 2024
Author: Mackay, C.R.;Freeman, H.L.;Belperio, A.P.;Clark, H.M.;Hungerford, N.;England, R.N.;Crosato, P.;Rau, B.;Standish, T.R.
Olympic Dam style Cu-Au-U mineralisation associated with Hiltaba age intrusives, and Tennant Creek style Au mineralisation associated with ironstone units in Hutchison Group metasediments, were the targets in the area surrounding the township of...
Olympic Dam style Cu-Au-U mineralisation associated with Hiltaba age intrusives, and Tennant Creek style Au mineralisation associated with ironstone units in Hutchison Group metasediments, were the targets in the area surrounding the township of Kimba. A program of calcrete geochemical sampling conducted over most of the licence at 800 m and 500 m centres delineated 16 low order (>5 ppb) gold anomalies. Infill sampling at 200 m and 100 m centres defined a single robust anomalous area having >9 ppb Au, with a peak value of 36 ppb Au, which has been dubbed the Waddikee prospect. Further infill calcrete sampling at 50 m centres defined targets which were tested by reverse circulation drilling (19 holes, total 1874 m) consisting of short fences of angled holes. Encouraging results included a best intercept of 19 m at 0.3 g/t Au from 100 m depth in hole 99WARC004A. Aeromagnetic data were obtained from a concurrent TEISA survey, with the Caralue Bluff JV in June 1999 flying 1790 line km of infill to 100 m line spacing. Interpretation of the data highlighted six target areas. A trial IP survey at Waddikee during January 2000 showed some promise in defining targets, as did low level Bi assaying of calcrete samples. Further infill calcrete sampling confirmed scattered anomalous values, but failed to define coherent areas. Following a 16-line IP survey of the southern part of the prospect in March 2000, a second reverse circulation drilling programme at Waddikie (18 holes, total 2621 m) tested strike extensions of the known mineralisation, and other targets defined by IP survey/magnetic survey/calcrete samples. This work failed to produce any upgrade to the tenor of the known mineralisation, and no other mineralisation was located.
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