Yundamindra Gold Project
The Yundamindra Gold Project is located ~65 kms south east of Leonora and ~65 kms east of the Joint Venture’s Kookynie project. The project lies within close trucking proximity of a number of mills (Figure 1).
The Yundamindra Project consists of nine granted mining leases, and two exploration leases, as well as a number of brownfield and greenfield exploration targets (Figure 2).
The Yundamindra Gold Project had high grade historical production prior to 1970 of 74kt @ 19.3g/t Au for 45,000 ounces with significant alteration and structures (epidote) hosting visible fine gold mineralisation within laminated quartz veins common to the eastern goldfields. Significant historical drill intercepts from the Prospects within the Project include:
- Pennyweight Point – 8m @ 56.36 g/t Au from 44m in PV095
- Landed at Last – 10m @ 9.99 g/t Au from 10m in LW34
- Bonaparte – 12m @ 5.64 g/t Au from 1m in GB35
- Queen May – 2m @ 39.49 g/t Au from 31m in QMN5
- Golden Treasure – 1m @ 48.1 g/t Au from 12m in TDN18.
The Yundamindra Project encompasses zones of gold mineralisation occurring along the margin of a regional scale hornblende-granodiorite batholith which intruded mafic lithologies. The contact is sub-divided into two ‘lines’ of mineralisation, western and eastern which host numerous prospective structures. Yundamindra has only experienced shallow historical drilling which offers Arika Resources significant opportunity to extend the know mineralisation occurrences within the area and for new discoveries.
Western Line
Gold mineralisation on the Western Line is generally associated with laminated quartz veins or mylonitic, pyritic, siliceous material in dilatory faults or shear zones.
Historical drilling has left Arika Resources with a potential shallow gold orebody or system that links 4 prospects together for 2500m of mineralisation along strike from the northern gold prospect Queen of Poland to the Southern gold prospect of Golden Treasure North (Figure 3).
Arika Resources Limited’s maiden drilling programme on the Western Line at Yundamindra returned with multiple impressive gold intersections and high grades. Importantly, mineralised intercepts correlate with historical drill intercepts, providing validation and encouragement for further drilling and potential resource estimation.
Landed at Last Prospect
The Landed at Last prospect is the northern most prospect on the western line of the Yundamindra project, and is located ~65km south east of Leonora and withing close trucking distance of a number of under capacity mills.
The prospect has historically only seen limited shallow drilling but has returned significant historical results, including:
HoleID | Prospect | Total Depth | Significant Intercepts |
LW87 | Landed at Last | 80 | 12m @ 3.46 g/t Au from 62 m |
LW32 | Landed at Last | 51 | 11m @ 5.85 g/t Au from 40 m |
LW34 | Landed at Last | 34 | 10m @ 9.99 g/t Au from 10 m |
LW33 | Landed at Last | 50 | 9m @ 8.56 g/t Au from 36 m |
LW5 | Landed at Last | 49 | 7m @ 5.39 g/t Au from 12 m |
LW71 | Landed at Last | 55 | 7m @ 3.26 g/t Au from 30 m |
LW65 | Landed at Last | 55 | 6m @ 7.54 g/t Au from 42 m |
LW75 | Landed at Last | 62 | 6m @ 5.6 g/t Au from 42 m |
LN93 | Landed at Last | 58 | 6m @ 11.19 g/t Au from 41 m |
Arika Resources’ maiden drilling programme includes 32 RC drillholes into the gold prospect of Landed at Last which confirmed gold mineralisation, with 20 holes returning significant intercepts as well as numerous other smaller gold intervals (Figure 4), including:
- 14m @ 3.13 g/t Au from 28m; incl 8m @ 5.01 g/t Au, 1m @ 12.30 g/t Au, and 1m @ 15.72 g/t Au (YMRC0003).
- 9m @ 4.29 g/t Au from 51m (YMRC0004)
- 12m @ 2.93 g/t Au from 43m; incl 5m @ 4.80 g/t Au (YMRC0023)
- 5m @ 6.40 g/t Au from 80m; incl 3m @ 9.74 g/t Au, and 1m @ 18.26 g/t Au (YMRC0030)
- 18m @1.16 g/t Au from 27m; incl 6m @ 2.08 g/t Au (YMRC00011)
- 10m @ 1.10 g/t Au from 33m; incl 1m @ 3.14 g/t Au from 41m (YMRC0007)
Gold mineralisation at Landed at Last is currently very shallow (<100m below surface) and has a current interpreted total strike length of over 750m with mineralisation open at depth and along strike.
Given the last drilling was undertaken over 10 years ago, Arika Resources has taken a measured approach to commencing exploration activities at Yundamindra. A campaign of confirmation drilling to confirm gold grades and intersections as well as extensional drilling has been undertaken to validate and help improve in the precision of historical data and for viability in respect of any future JORC compliant resource estimations.
Importantly, not only did the Company’s drilling correlate with historical intercepts and high grades, in specific areas the drilling programme extended mineralisation at depth down the dip of the orebody (Figure 5). Four key drillholes of YMRC0005, YMRC0014, YMCR0016 and YMRC0018 have all extended mineralisation at depth beyond the last historical drillhole in that section. These extensions remain less than 100m below surface which could potentially indicate significant gold mineralisation open at depth and two cross sections have been designed to highlight the extension of mineralisation at depth (Figures 5 and 6).
Bonaparte Prospect
The Bonaparte Prospect, is located approximately 1km along strike to the south of the Landed at Last prospect (Figure 2). The Bonaparte Prospect has produced significant historical results, including:
HoleID | Prospect | Azimuth | Total Depth | Significant Intercept |
GB35 | Great Bonaparte | 191.8 | 25 | 12m @ 5.64 g/t Au from 1 m |
GBE8 | Great Bonaparte | 240.1 | 40 | 6m @ 2.03 g/t Au from 21 m |
GBE23 | Great Bonaparte | 240.1 | 25 | 5m @ 5.76 g/t Au from 9 m |
GBE7 | Great Bonaparte | 240.1 | 40 | 5m @ 3.95 g/t Au from 28 m |
GBE11 | Great Bonaparte | 240.1 | 55 | 5m @ 2.59 g/t Au from 33 m |
GB13 | Great Bonaparte | 241.8 | 40 | 4m @ 5.73 g/t Au from 25 m |
GBE29 | Great Bonaparte | 240.1 | 52 | 4m @ 4.42 g/t Au from 36 m |
GBE13 | Great Bonaparte | 240.1 | 60 | 4m @ 2.23 g/t Au from 33 m |
Recent assays for 10 RC drillholes drilled by Arika Resources into the Bonaparte gold prospect confirmed the gold mineralisation from the historic drilling completed almost 40 years ago. Eight out of 10 drillholes returning significant intercepts as well as numerous other smaller gold intervals including:
- 11m @ 2.23 g/t Au from 31m (YMRC0039);
- 8m @ 1.5 g/t Au from 24m (YMRC0041);
- 4m @ 3.12 g/t Au from 12m (YMRC0001);
- 5m @ 1.62 g/t Au from 31m (YMRC0037).
Gold mineralisation at the two separate lodes of Bonaparte is shallow (<100m from surface) and open in all directions along strike and at depth.
The Bonaparte prospect remains open along strike and at depth (Figure 8).
The combined approximate strike length of both gold lodes at Bonaparte is 350m which, when combined with Landed at Last adds up to over 1km of mineralised strike length at just two out of 9 prospects within the Yundamindra Gold Project.
Only two holes were drilled into the western lode of Bonaparte due to constraints related to the proximity of pastoral infrastructure. However, Arika Resources has since gained consent to drill within these areas as well as the Golden Treasure North prospect, located 200m to the south of Bonaparte on the same structure, in future drill campaigns.
RC drilling from the recent campaign has been successful for the confirmation of gold grades and intersections that will provide valuable information to validate and help improve in the precision of historical data and for viability in respect of any future JORC compliant resource estimations. A review of the new drilling against the historical information is a vital next step in advancing the Yundamindra Gold Project.
Eastern Line
Pennyweight Point
Pennyweight Point is a highly complex and interesting orebody very different to other prospects at Yundamindra and requires very targeted drilling programme combined with a new approach to interpretation.
The Pennyweight Point prospect is located in the Eastern Line and has some of the highest grade and thickest intersections out of the known gold prospects in the Yundamindra Gold Project. It has had numerous generations of near surface mining and exploration drilling and remains open along strike and at depth (Figure 10).
The Pennyweight Point prospect has returned some of Yundamindra’s most outstanding shallow high-grade results shown in the below Table:
Hole_ID | Prospect | Intercept Description |
PV095 | Pennyweight Point | 8m @ 56.36 g/t Au from 44 m |
PV055 | Pennyweight Point | 4m @ 26.14 g/t Au from 36 m |
PV105 | Pennyweight Point | 6m @ 13.69 g/t Au from 46 m |
PIV049 | Pennyweight Point | 12m @ 6.27 g/t Au from 16 m |
PV050 | Pennyweight Point | 20m @ 3.05 g/t Au from 50 m |
P008 | Pennyweight Point | 8m @ 7.51 g/t Au from 36 m |
PDDH004 | Pennyweight Point | 2m @ 26.31 g/t Au from 121.1 m |
PV043 | Pennyweight Point | 8m @ 5.34 g/t Au from 48 m |
P055 | Pennyweight Point | 7m @ 5.44 g/t Au from 87 m |
PDDH003 | Pennyweight Point | 4m @ 7.73 g/t Au from 103.3 m |
P013 | Pennyweight Point | 6m @ 4.95 g/t Au from 54 m |
PIV048 | Pennyweight Point | 4m @ 6.94 g/t Au from 60 m |
Pennyweight Point has developed a deeply weathered profile containing fine to coarse nugget gold occurs within and above ferruginous/calcrete duricrust with dispersed, supergene mineralisation present in saprolite to depths of up to 70m. Pennyweight Point is significantly more complex in geometry, style and mineralisation than other prospects of the Yundamindra Gold Project (Figure 2).
Arika Resources plans to take a methodical approach to drilling with a consistent orientation at Pennyweight Point which has historically been drilled from multiple directions. Unlike the gold prospects on the Western Line of the Yundamindra Gold Project, mineralisation at Pennyweight Point has presented at depth with a small number of historical diamond drillholes reaching a depth over 200m below the surface and mineralisation intersected at 125m.
Arika Resources Limited has just completed its maiden drilling program at Pennyweight Point.