Yagahong Project

Syn-tectonic (epigenetic) Cu-Au mineralisation

Yagahong is located 35km southeast of Meekatharra and approximately 20km north-east of Quinns. The tenement area comprises 160km2 and contains part of the Gabanintha shear system, a zone that is about 1km in width and hosts at least two zones of copper-gold mineralisation.

In the Yagahong project, Silver Swan has concentrated most of it’s activities at Copper Hills, a prospect that lies within the southeastern portion of the project area and incorporates a number of small historical workings. Only limited historic reverse circulation and diamond drilling has been carried out along this zone of workings.

The company has mapped the geology of Copper Hills in detail and drilled two diamond core holes (08CH001 & 08CH002) across multiple zones of shear-hosted copper-gold mineralisation. The shear zones occur within an ultramafic-mafic layered igneous complex within peridotite and gabbroic host rocks. The style of mineralisation is syn-tectonic and is potentially similar to deposits in the Chibougamau area (Canada) where 14 deposits have produced more than 39.5 million tonnes at an average grade of 1.57% Cu and 1.95 g/t Au. At Copper Hills the two diamond core holes drilled by Silver Swan show multiple intersections including:

Hole No. Copper (Cu) Gold (Au)
08CHD002 4m @ 2.4% 4m @ 1.6g/t
08CHD001 4m @ 1.3%  

The results of the drilling, shown in the Copper Hills South Assay Table (below) confirm the tenor of mineralisation reported in historic drilling and indicate a continuation of mineralisation at depth. A minimum 450m of strike is implied by the drilling with no barren drill holes within this strike length that have been drilled correctly across the shear zones. Mineralisation is from surface and remains open to the north, south and at depth.

Future activities will include reverse circulation drilling over approximately 3kms of strike of shear at Copper Hills to determine continuity, north and south strike and depth extensions. Results of a detailed aeromagnetic survey are awaited; this will assist in mapping structures and key stratigraphic zones.

Additionally, Silver Swan recognises the Copper Hills complex as a significant layered igneous complex. The potential for this intrusion to host nickel and/or titaniumvanadium mineralisation is currently being examined with detailed petrochemical and geophysical studies.

The company will also commence testing of copper and gold anomalies in the northern area of Yagahong where drilling is sparce and RAB drilling is mostly restricted to 20m depth with little or no subsequent RC drilling.

Yagahong Tenement Map

Map of Copper Hills South showing geology and drillhole locations

Map of Copper Hills South showing geology

Map of Copper Hills South showing geology

 

Copper Hills South Assay Table

Hole No.
End of hole depth (m)
East MGA94
North MGA94
Declination (º)
Azimuth (º)
From (m)
To (m)
Interval (m)
Copper (%)
Gold (g/t)
08CHD001
168
668280
7015390
-60
240
120
125
5
1.2
0.42
 
 
 
 
 
 
132
133
1
1.28
0.26
 
 
 
 
 
 
143
144
1
1.04
0.35
08CHD002
220
668260
7015515
-60
240
82
86
4
0.7
0.4
 
 
 
 
 
 
90.6
92.2
1.6
1.2
0.3
 
 
 
 
 
 
117
121
4
2.4
1.6
 
 
 
 
 
 
178
180
2
1.0
0.3
 
 
 
 
 
 
182
183
1
1.9
0.16
 
 
 
 
 
 
187
188
1
1.5
0.4
Historic Results
CD6
 
668272
7015449
-56
253
71.9
74.2
2.3
2.2
0.7
 
 
 
 
 
 
77.9
80.9
2.9
1.4
0.45
 
 
 
 
 
 
89.9
91.7
1.8
2.4
5.5
 
 
 
 
 
 
147.2
163.7
16.5
0.9
0.2
CD7
 
668221
7015431
90
 
0
1.6
1.5
2.8
no data
 
 
 
 
 
 
19.8
22.8
3
1.8
no data
 
 
 
 
 
 
47.5
57.1
9.6
1.8
no data
CD9
 
668278
7015579
-45
255
135.3
140.8
5.5
1.0
no data
 
 
 
 
 
 
163.4
171.8
8.4
0.9
no data
CD16
 
668357
7015226
-45
255
59.7
60.3
0.6
4.0
no data
 
 
 
 
 
117
118.5
1.5
1.8
no data
 
 
 
 
 
 
120.4
121
0.6
2.3
no data
 
 
 
 
 
 
138.7
140.8
2.1
0.6
no data
CD17B
 
668220
7015680
-45
255
117.7
124.4
6.7
1.0
no data
CD18
 
668306
7015334
-50
256
68.9
73.8
4.9
1.7
no data
CHRC14
 
668247
7015429
-60
245
30
32
2
1.17
no data
 
 
 
 
 
 
34
40
6
2.5
no data
   

clarity