The new zone, which was identified in a bulldozer cut while clearing a drill pad, consists of quartz veining within a halo of strongly altered sandstone containing quartz, goethite, sericite and manganese oxides typical of the high grade mineralisation seen elsewhere within the Aucu Gold Deposit. Channel sampling of this zone has identified 3 metres (true width) at 24.8 g/t gold and 4 metres (true width) at 6.5 g/t gold on the two road cuttings. In addition a rock chip sample of the same structure taken at the top of the hill had a grade of 23 g/t gold (Figure 1 and Table 1).
The Eastern Gold Zone now consists of four sub-parallel shear zones all containing significant gold mineralisation that will be tested via drilling over a strike length of 150 metres. Once drilling has confirmed the orientation of the structures, further drilling will be conducted to convert the gold mineralisation into a JORC compliant resource.
As previously noted, the Company has mobilised a second RC rig to site. This rig is expected to commence drilling the Eastern Gold Zone shortly.
Table 1: Assay results from channel sampling
Sample ID Northing Easting Gold g/t CHD17-05a-11 696,994 4,626,168 1.87 CHD17-05b-09 696,966 4,626,135 14.16 CHD17-05b-10 696,965 4,626,135 24.98 CHD17-05b-11 696,964 4,626,134 35.19 CHD17-05?-02 697,114 4,626,379 1.97 CHD17-06-08 696,937 4,626,173 0.79 CHD17-06-21 696,925 4,626,167 3.98 CHD17-06-22 696,924 4,626,167 16.06 CHD17-06-23 696,923 4,626,166 3.88 CHD17-06-24 696,923 4,626,166 1.95 CHD17-06-27 696,920 4,626,165 1.27
Aucu Gold Deposit - Inferred Resource Summary
In April the Company reported an updated inferred resource for the Aucu gold deposit reported in accordance with the JORC Code (2012) (ASX announcement 21 April 2017). The estimate above a cut-off grade of 1 g/t gold is:
1.8 million tonnes grading 5.2 g/t gold, for 302,000 ounces of contained gold.
The new resource represents a 93% increase in contained gold ounces and a 23% increase in average grade over the previous gold resource using the same cut-off grade reported in April 2015.
Importantly the new resource contains a new very high grade zone (Quartz Zone) of 244,000 tonnes at 9.5 g/t gold containing 75,000 ounces of gold, which starts at surface. Surface extensions of the high grade Quartz Zone have been identified and will be drilled in the coming field season.
This latest resource estimate also identified a new inferred copper resource reported in accordance with the JORC Code (2012), above a cut-off grade of 0.25% copper, of 608,000 tonnes at 0.64% copper, containing 3,870 tonnes of copper.
The new gold and copper resources start at surface, have only been drilled to 100 metres vertical depth and remain open along strike and at depth.
The reported gold resource represents less than 5% of mineralised faults identified by rock chip sampling at Aucu to date. Approximately 95% of the mineralised faults identified by rock chip sampling are still to be drilled. The gold bearing mineralised structures extend beyond the current resource estimate area over a length greater than 3,000 metres and occur as multiple lodes (Figure 8 in link below).
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About White Cliff Minerals Ltd
White Cliff Minerals Ltd (ASX:WCN) is a Western Australian based exploration company with the following main projects:
Kyrgyz Aucu Gold Project (90%): The Project contains extensive porphyry related gold and copper mineralisation starting at the surface and extending over several kilometres. Drilling during 2014 has defined a major gold discovery with an initial inferred resource of 1.15Mt at 4.2 g/t containing 156,000 ounces of gold. Additional drilling in 2015 identified extensions of known high grade gold mineralisation with intersections as high as 8 metres at 55 g/t gold. In addition drilling has also defined a significant copper deposit at surface consisting of 10Mt at 0.41% copper containing 40,000 tonnes of copper. Extensive mineralisation occurs around both deposits demonstrating significant potential to increase the existing resources.
The project is located in the Kyrgyz Republic, 350km west-southwest of the capital city of Bishkek and covers 83 square kilometres. The Chanach project is located in the western part of the Tien Shan Belt, a highly mineralised zone that extends for over 2,500 km, from western Uzbekistan, through Tajikistan, Kyrgyz Republic and southern Kazakhstan into western China.
Merolia Gold and Nickel Project (100%): The project consists of 771 square kilometres of the Merolia Greenstone belt and contains extensive ultramafic sequences including the Diorite Hill layered ultramafic complex, the Rotorua ultramafic complex, the Coglia ultramafic complex and a 51 kilometre long zone of extrusive ultramafic lava’s. The intrusive complexes are prospective for nickel-copper sulphide accumulations possibly with platinum group elements, and the extrusive ultramafic rocks are prospective for nickel sulphide and nickel-cobalt accumulations.
The project also contains extensive basalt sequences that are prospective for gold mineralisation including the Ironstone prospect where historical drilling has
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