Carnaby Resources Limited announced new confirmatory assay results and further extension drill hole intersections (pXRF) from the Greater Duchess Copper Gold Project in Mt Isa, Queensland. Carnaby continues to expand the Mount Hope Central discovery with two drill rigs currently on site and drilling step out extensions to the deposit on a nominal 80m x 50m spacing. The Company plans to drill out the deposit at depth prior to completion of an initial Mineral Resource Estimate for the Mount Hope Central prospect. This will be included in the Greater Duchess Copper Gold Project maiden Mineral Resource Estimate which is targeted to be completed by the end of June 2023.
The drilling at Mount Hope Central is part of a 40,000m drilling program to be completed during calendar year 2023, which will also target other exceptional potential discovery and resource growth areas at Mount Hope North, Lady Fanny, Burke & Wills, Razorback, St Andrews and Wagon Wheel Prospects. MHDD080 has intersected a 63m downhole zone (estimated to be ~21m True Width) (Figure 4) of copper mineralisation which is a 120m extension step out of the chalcopyrite-pyrite- chalcocite transitional zone which has now been traced over approximately 350m down plunge and remains open at depth. The drill hole intersected strong chalcopyrite-pyrite mineralisation with secondary chalcocite hosted within a vuggy quartz-carbonate breccia lode (Figure 3). As per previous intersections in the high grade transitional zone, secondary processes appear to have formed the vuggy nature of the core throughout wide intervals of mineralisation causing some core loss and poor recovery in certain sections. pXRF readings for MHDD080 are presented in full in Appendix 2 and summarised as; MHDD080 63m @ 1.8% Cu from 330m Including 43m @ 2.5% Cu from 337m. The result in MHDD080 highlights that the high grade chalcopyrite-chalcocite transitional zone is continuing with strength at depth. The ultimate depth of the transition zone is unknown and will only be determined with ongoing drilling. Of note is that this transitional zone does appear to be coincident with a primary chalcopyrite-pyrite zone as opposed to lateral extensions of the NE and NW lode which appear to be predominantly chalcopyrite-pyrrhotite dominant. Also of note is that the strength of the grade into the fresh rock chalcopyrite zones recently intersected in MHDD083 and MHDD077 is clear evidence that the Mount Hope Central orebody has excellent grade and width down dip continuity. Assay results have been received for the RC pre-collar section of the large step out hole MHDD077, which intersected a very strong zone of copper mineralisation over a 63m down hole interval (estimated true width 21m) to the bottom of the RC. The grade of the mineralised interval has increased by 31% from previously reported pXRF readings Results are pending from the remaining diamond core section of the hole. MHDD077 is a very significant step out drill result which has completely opened up the southwest extension and strike potential of the Mount Hope Central discovery (Figure 1 & 2). Further step out drilling is in progress and additional results are anticipated shortly. MHDD077 63m @ 1.7% Cu, 0.2g/t Au from 204m Including 29m @ 3.2% Cu, 0.4g/t Au from 204m. MHDD076 & MHRC082: Assay results have been received for the shallow RC holes drilled up dip from MHDD077 as shown in Figure 5. The grade of the mineralised intervals has increased by approximately 40% from previously reported pXRF readings. MHRC082 intersected a 25m downhole zone (estimated true width ~16m) of strong copper sulphide mineralisation. MHRC076 intersected a 20m downhole zone (estimated true width ~12m) of strong copper sulphide mineralisation. MHDD076 & MHRC082 show great continuity of the quartz lode mineralisation which remains open to the southwest. As shown in plan view in Figure 2, no drilling has yet been completed southwest of these two drill holes. Previous drill hole MHRC009 which intersected 12m @ 1.9% Cu (see ASX release 13 October 2022) is off trend of the NE lode and it is yet to be determined whether the NE lode continues to the southwest past MHRC076 and 82 or is directly linked to the result in MHRC009. Further step out drilling is in progress and additional results are anticipated shortly. Assay results from the RC holes MHRC076 and MHRC082 are presented in full in Table 1 of Appendix 2 and summarised as; MHRC082 25m @ 1.9% Cu, 0.2g/t Au from 65m Including 17m @ 2.4% Cu, 0.2g/t Au from 66m MHRC076 20m @ 1.6% Cu, 0.1g/t Au from 79m Including 15m @ 2.0% Cu, 0.2g/t Au from 82m. MHRC008: Single metre re-split results from previously reported 5m composite results (see ASX release 28 September 2022) have been received from MHRC008 (Figure 2). The results have confirmed two very significant and shallow zones of copper gold mineralisation as summarised below. MHRC008 was drilled at the confluence of the NE and NW lodes (Figure 2) and further infill drilling is required in this area before the true widths can be confidently estimated; MHRC008 39m @ 1.5% Cu, 0.2g/t Au from 60m Including 26m @ 2.1% Cu, 0.2g/t Au from 67m And 26m @ 2.1% Cu, 0.3g/t Au from 110m Including 8m @ 5.3% Cu, 0.6g/t Au from 115m.