Drilling Delivers High Grade Gold Results at Aucu Gold Deposit
Perth, Oct 10, 2016 AEST (ABN Newswire) - White Cliff Minerals Ltd (
ASX:WCN) ("White Cliff" or the "Company") is pleased to report additional visible gold intersections from recent drill holes at Quartz Zone within the Aucu Gold project.
Highlights:
Quartz Zone at Aucu delivers high grade gold and copper results, laboratory assays include:
- 4 metres at 12 g/t gold including 1 metre at 41.3 g/t gold from 49 metres.
- 9 metres at 8.3 g/t gold from 98 metres including;
-- 1 metre at 21.6 g/t gold and;
-- 1 metre at 24.0 g/t gold
- 7 metres at 5.1% copper within 34 metres at 1.36% copper from 71 metres
Drill hole ERC16-33 drilled under ERC16-31 and ERC16-32 has intersected substantial gold and copper mineralisation both within the quartz reef and in a second parallel quartz reef and alteration halo (Figure 1, refer to link below). Assay results include 1 metre at 41.3 g/t gold within 4 metres at 12 g/t gold.
Managing Director Todd Hibberd commented that "The assay results reflect the identification of native gold in both outcrop and in drilling samples. The quartz reef appears the host high grade gold mineralisation surrounded by an alteration halo containing substantial copper. Quartz outcrops containing native gold occur in every road cutting completed at the Quartz Zone to date."
The balance of assay results from drill hole ERC16-32 have intersected visible gold and substantial mineralisation including 10 metres at 2 g/t gold from 35-44 metres. This intersection carried on from the 3 metres at 14.3 g/t gold reported on 26th September (ASX announcement 260916).The overall intersection is 12 metres at 5.1 g/t gold including 2 metres at 26.2 g/t gold.
The Quartz Zone
The Quartz Zone occurs at the eastern end of the Eastern Gold Zone adjacent to the main porphyry intrusion. High grade gold mineralisation is largely confined to the quartz reef which ranges from 1-3 metres wide and can be traced at surface over 210 metres length. Visible gold has been panned from the quartz reef in five road cuttings covering 150 metres length (Figures 1 & 2, refer to link below). The quartz reef extends north-west and interpreted to be the same reef encountered in drill hole UGZ15-35 which intersected 8 metres at 55 g/t gold (Figure 1).
Drilling has confirmed that the quartz reef is sub-vertical and has an orientation of 320 degrees and interpretation of magnetic data suggests that it has a total length of 450-510 metres. The quartz reef is offset by a major fault at the northwest end and by a porphyry intrusion at the southeast end (Figure 1). Further drilling is required to establish the location of extensions to the reef.
The Quartz Zone is characterised by a central 1-3 metre wide quartz reef with open textures (voids, quartz crystals, holes) and intense sericite-carbonate+/- manganese alteration containing abundant free gold surrounded by a broad alteration zone containing malachite (copper oxide), goethite and limonite (after pyrite and chalcopyrite).
The Company is continuing to drill the Quartz Zone on sections 30-50 metres apart down to 100 metres vertical depth. Three of the four planned sections have been completed. Due to the success of the drilling to date and the amount of visible gold being recovered at surface the Company has planned additional drilling to test the mineralisation further along strike in both directions. Mineralised intervals greater than 0.5 g/t gold from the Quartz Zone and associated structures has been tabulated in Table 1 (refer to link below).
The Company will endeavour to complete as much drilling as possible before autumn snow and rain makes drilling too difficult to continue.
Drilling Update
As of the date of this release a total of 3,615 metres have been completed in this year's drill program consisting of 16 diamond holes and 13 RC holes as detailed in Table 2. The Company is awaiting assay results for ERC16-28, 29 and 30, ERC16-34, 35, 36, 37, 38, 39 and 40.
The Reverse Circulation rig is currently drilling ERC16-24 to ERC16-26 at the top of the Quartz Zone while further roads are bull dozed at the bottom of the hill. The Company expects to complete another 1000-1500 metres of drilling in 2016. Further assay and drilling information will be released as it become available.
Aucu Gold Deposit Summary
As previously reported (ASX releases 24 Mar 15 and 02 Apr 15), the Company announced a maiden inferred resource for the Aucu gold deposit above a cut-off grade of 1 g/t gold of 1.15 Million tonnes grading 4.2 g/t gold for 156,000 ounces of contained gold.
In 2015, drilling identified exceptional gold mineralisation to the east of the Upper Gold Zone (UGZ) over a strike length of at least 500 metres (ASX releases 11 Nov 15, 1 Dec 15 and 7 Dec 15). Results included:
- 8 metres at 55.2 g/t gold from 66 metres including 1 metre at 89.9 g/t gold
- 4 metres at 59.9 g/t gold from 66 metres including 1 metre at 189 g/t gold
- 2 metres at 43.5 g/t gold from 86 metres
- 1 metre at 103.4 g/t gold from 74 metres
- 3 metres at 41.4 g/t gold including 1 metre at 71 g/t gold
- 4 metres at 23.8 g/t gold from 85 metres
- 2 metres at 22 g/t gold from 102 metres
- 1 metre at 58 g/t gold
The average grade of the gold intersections from the 2015 drill program across the UGZ - East was 45 g/t gold from several lodes. In addition:
- Mineralisation outcrops at surface
- Mineralisation remains open in both directions and at depth
- Overall metallurgical recovery of all mineralised zones is 99%
- Gravity recoverable gold averages 88.6% (gold that reports to the gravity concentrate)
To view tables and figures, please visit:
http://abnnewswire.net/lnk/782QKHU9
Contact
Todd Hibberd
Managing Director
T: +61-8-9321-2233
E: info@wcminerals.com.au
www.wcminerals.com.au
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