No field work was performed on EL 3904 Yarramba during the period August 2009 to August 2011. During Year 5 of EL 3904 ending on 26/8/2012, the following activities occurred: - Fugro Airborne Surveys were contracted by Uranium One to complete...
No field work was performed on EL 3904 Yarramba during the period August 2009 to August 2011. During Year 5 of EL 3904 ending on 26/8/2012, the following activities occurred: - Fugro Airborne Surveys were contracted by Uranium One to complete an airborne EM (TEMPEST) and magnetic survey in early October 2011, which covered the entire EL 3904 tenement area plus the northern portion of EL 3936, for a total of 1243 line km. The survey was designed to infill and complement data from the 2002 AEM survey flown for Southern Cross Resources and other regional AEM data from the Geoscience Australia 2010 Frome TEMPEST survey. The east -west flight line spacing varied depending on the availability of historical data - typically the spacing was 1 km, but it was narrowed to 500 m in places where re-flying of some earlier 2002 lines was undertaken, and to 250 m over the central portion of the Yarramba Palaeochannel. The new AEM data further defined the Yarramba Palaeochannel boundaries, whilst also identifying areas of high basement conductivity. The latter observations stirred fresh interest in base metal prospectivity within the Honeymoon Project area, prompting a subsequent review of historical data and a GIS desktop study which generated four targets based on geological, gravity, magnetic and AEM information, none of which had previously been tested. A PACE Initiative discovery drilling proposal was submitted to DMITRE seeking subsidy funds to assist with drilling these basement polymetallic targets [this application did not succeed]. - a total of 52 vertical open rotary mud drillholes for 5673 m were completed within EL 3904 as part of a regional sedimentary uranium drilling programme, while a further 26 holes were completed on the neighbouring EL 3936 South Eagle. The subject Yarramba drillholes were spread across several prospects including Callahan’s, Jason’s, Yarramba and East Kalkaroo Extension, the work being performed in two phases between December 2011 and May 2012 [Note: only lithology, wireline geophysical and composite well logs were submitted to DSD - no interpretation of the drilling results was provided in licence final report]. During Year 1 of renewed EL 5140, planning for the 2013 field season included doing more open hole rotary mud drilling at Yarramba, Yarramba South, Jason’s, East Kalkaroo Extension and Cummins Dam. Unfortunately, due to rapidly ensuing difficult economic conditions, the proposed field work was put on hold temporarily. Instead, an office-based comprehensive prospectivity analysis project was begun, covering the entire Honeymoon Project area (ELs 5140 and 5215, and parts of ML 6109 outside of the Honeymoon mine wellfield area). The aim here was to identify prospects that might have the best potential to provide a medium to longer-term supply of uranium, so that they could be prioritised and efficiently targeted during the next three years of exploration work. A database of uranium mineralisation intercept grade/thickness measurements was compiled for the study, using digital information compiled from 1204 modern and historical drillholes. 23 prospects were identified wherein at least one drillhole contained sedimentary uranium mineralisation exceeding 0.1% eU3O8. Once defined, each of these prospects was scrutinised against eleven critical parameters and assigned a ranking score. Encouragingly, 12 out of the 23 prospects scored a priority of high or better. It was decided that the prospectivity analysis had identified significant potential for expanding upon the current inventory of uranium reserves.
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