Exploration for diamond and base metals report EL 25085 Bunda

Abstract

In August 2010 exploration for diamonds and base metals was undertaken, this mainly involved reconnaissance sampling of stream, soil and rock. This report details the findings of this activity and examines base metal potential of EL 25085. Assay results for selected samples taken from EL 25085 are the most interesting in respect to the combination of elements and their anomalous values when compared to assay results for EL 25084 and EL 25085. The results indicate anomalous values of barium, iron, cobalt, manganese, lead and vanadium. Since granting of the EL, a review of previous exploration activities in the area was conducted. A consultant geophysicist, Grant Boxer reviewed the geophysical data. This data as well as geological data and stream-sediment sampling data have been processed and assessed. The tenement has been covered by heavy mineral stream and loam sampling. A review was undertaken of the past diamond exploration which indicated that although there were recoveries of microdiamonds in the southern two EL's (25084 and 25085), no source could be identified. No kimberlitic indicator minerals for example chrome diopside and pyrope garnet have been recovered from the tenements in previous sampling. Data from the recent airborne magnetic surveys flown by the Northern Territory Geological Survey (NTGS) over the tenement was processed for targets that may represent kimberlite or lamproite. Seven targets were selected for ground inspection, with ground magnetic surveys recommended for those targets that are unexplained after surface inspection. These targets were recently investigated and systematically sampled. At the northern end of the license traverses along a graben were undertaken.