Mount Bundy Joint Venture 1990 Field Season Report

Abstract

During the 1990 field season, work was concentrated on the Quest 29 tenements (MLN's 337 to 339 and 369 to 373) in which a number of prospects have been identified by Geopeko and by Carpentaria. The only other areas to be explored by Carpentaria in 1990 were Quest 44, where a costeaning program was completed without encouraging results, and Quest 30, where soil and rock sampling, ground magnetics and re-sampling of old costeans were carried out. Lead, gold and arsenic anomalies were delineated at Quest 30, which may justify drilling in 1991. In the Quest 29 tenements, two prospects were drilled in the northern solitary lease (MLN 337). One was the BHS prospect, where ten RC percussion holes were drilled for a total of 480 metres. The target here was gold in groups of quartz veins found in the 1989 costean work. The results of the drilling do not justify further work. The other prospect in MLN 337 is the Bob Smith Reef, where silver, lead and zinc mineralisation was round in a silicified and fractured zone in metasiltstones. Sixteen RC holes totalling 1232 metres were drilled here. Although some good intersections were obtained the mineralisation does not have sufficient size or grade to be or great interest, although its down-dip extent is unknown. In the main group of Quest 29 tenements, the gold mineralisation partially explored last year was the main focus or Carpentaria's 1990 work. Thirty-five RC holes were drilled at this prospect for a total or 1,634 metres. Another five holes totalling 410 metres were drilled in the 'Saddle' area, a gold-soil anomaly about 1.5 km to the northwest. The Quest 29 gold prospect has given some quite encouraging results, and much more drilling is needed to fully outline the resource. The gold mineralisation is largely hosted in quartz-sulphide veins in a metadolerite, and generally near to its eastern contact with a metasiltstone of the Koolpin Formation. Drilling has so far shown the gold to be occurring along a strike length of over 250 metres, and open at both ends and down-dip to the southwest. Diamond coring is now required to define the style and orientation or the mineralisation before further step-out drill rig is done. In August 1990, Carpentaria commissioned an aeromagnetic survey over the southern half or the Mount Bundy pluton and the adjacent areas, which are mostly held by Carpentaria. This survey was centred about the Quest 29 and Quest 30 areas, and the data is currently being interpreted. Ground magnetics surveys were conducted at five separate areas at Quest 29, Quest 30 and at Bob Smith Reef.