Tyranna reports further consistent gold grades, strengthening Greenewood Prospect with Phase II drill program completed
Highlights
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Consistent gold results strengthens geological model
-
Multiple gold bearing zones
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Strike extended beyond 600m and remains open
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Two diamond holes 16GWDD001 & GWDD002 drilled to gather structural information.
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Best Intersections include :
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16GWRC063: 14m @ 3.02/t gold from 34m
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16GWRC043: 2m @ 2.83 g/t gold from 81m
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16GWRC043: 4m @ 2.96 g/t gold from 100m
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16GWRC058: 4m @ 4.1 g/t gold from 72m
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16GWRC073: 8m @ 3.35 g/t gold from 55m
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16GWRC081: 1m @ 8.8 g/t gold from 83m
The Directors of Tyranna Resources Limited (ASX: TYX, or The Company), as manager of the Western Gawler Craton Joint Venture which includes WPG Resources Ltd (ASX: WPG) and Coombedown Resources Pty Ltd are pleased to announce the final batch of assay results from reverse circulation (RC) holes and diamond drilling (DH) completed at the Greenewood Gold Prospect, which is located approximately 37 km from the Challenger Gold Mine and part of the larger Jumbuck Gold Project in the Northern Gawler Block of South Australia.
Planned drilling intersected multiple gold bearing zones with similar results to the phase 1 and phase 2 programs. The high grade section of the system is known as Greenewood Central. Phase 2 drilling comprised of a combination of infill, down-dip and diamond drilling used to improve the understanding of this section of the geological structure. The drilling program included grid spacing to at least 50m spacing and has now been completed within the central section with some sections completed down to 25m line spacing. Two diamond holes were also drilled to gather structural
information as well as to aid in visualisation of ore zones. Tyranna Directors pleasingly note that Hole 16GWRC073, which was drilled 100m north to the last mineralised line of drilling, has now increased the strike length to greater than 600 metres.
Phase I and Phase II result highlights
In May 2016, Tyranna drill tested a single intersection of 5m @ 2.14 g/t from an historical RAB reconnaissance hole drilled in 2003, approximately 800 metres to the North East of the main body of the Mainwood prospect gold mineralization. Three inclined RC holes were drilled in order to test this "outlier" result. All three holes returned significant gold intersections (up to 2m @7.94 g/t gold) at shallow depths, beneath a distinct sulphide "marker" horizon, refer ASX announcement on 1 June 2016.
Highly significant in terms of ongoing exploration in the region is that all the "Greenewood" gold intersections occur beneath a surface where no calcrete has been developed and, therefore, NO geochemical signature exists as a guide to drilling. It is believed that this is the first instance of sub surface gold being discovered without the assistance of calcrete anomalism in this part of the Gawler Block.
The Tyranna technical team will now assess all results from phase 1 and 2 drilling at the Greenewood prospect to better understand the structure and the gold distribution with the aim of targeting the primary source of gold mineralisation.
Tyranna is in the process of planning activities for 2017, which will include approximately 15,000 to 20,000 metres of drilling. Drilling is planned to commence mid-March 2017 at the Typhoon and Monsoon prospects which to date have shown that the mineralisation is closer to the surface than the northern prospects.
Significant drill results by Tyranna during the 2016 calendar year include: o 16GWRC003: 1m @ 20.55 g/t gold from 47m
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16GWRC011: 3m @ 8.26 g/t gold from 26m
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16GWRC012: 1m @ 12.3 g/t gold from 56m o 16GWRC015: 2m @ 5.22 g/t gold from 39m o 16GWRC026: 1m @ 8.6 g/t gold from 77m
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16GWRC038: 14m @ 5.79 g/t gold from 35m o 16GWRC040: 1m @ 23.4 g/t gold from 27m
Figure 2: Greenewood 3D Model Long Section
Table 1: Significant Intersections > 1.0g/t Au
|
Hole ID
|
Northing
|
Easting
|
DIP
|
AZM
|
EOH
|
Depth From (m)
|
Depth To (m)
|
Intercept Width (m)
|
Au g/t
|
|
16GWRC042
|
6721687
|
377532
|
-60
|
135
|
90
|
50
|
53
|
3
|
1.73
|
|
16GWRC043
|
6721703
|
377512
|
-60
|
135
|
120
|
81
|
83
|
2
|
2.83
|
|
16GWRC043
|
"
|
"
|
100
|
104
|
4
|
2.96
|
|
Including
|
"
|
"
|
100
|
101
|
1
|
5.34
|
|
16GWRC056
|
6721689
|
377444
|
-60
|
135
|
162
|
136
|
137
|
1
|
1.67
|
|
16GWRC057
|
6721709
|
377579
|
-60
|
135
|
90
|
49
|
52
|
3
|
3.05
|
|
16GWRC058
|
6721727
|
377561
|
-60
|
135
|
120
|
72
|
76
|
4
|
4.1
|
|
Including
|
"
|
"
|
74
|
75
|
1
|
8.2
|
|
16GWRC060
|
6721238
|
377051
|
-60
|
135
|
60
|
44
|
45
|
1
|
3.07
|
|
16GWRC063
|
6721603
|
377416
|
-60
|
135
|
63
|
23
|
25
|
2
|
2.53
|
|
16GWRC063
|
"
|
"
|
34
|
48
|
14
|
3.02
|
|
Including
|
"
|
"
|
40
|
44
|
4
|
5.37
|
|
16GWRC063
|
"
|
"
|
51
|
53
|
2
|
1.03
|
|
16GWRC073
|
6721761
|
377669
|
-60
|
135
|
72
|
39
|
41
|
2
|
1.78
|
|
16GWRC073
|
"
|
"
|
55
|
63
|
8
|
3.35
|
|
Including
|
"
|
"
|
57
|
59
|
2
|
6.1
|
|
Including
|
"
|
"
|
60
|
61
|
1
|
6.0
|
|
16GWRC081
|
6721550
|
377306
|
-60
|
135
|
102
|
83
|
84
|
1
|
8.8
|
|
16GWDH01
|
6721660
|
377471
|
-60
|
135
|
150.3
|
69.5
|
70.8
|
1.3
|
4.2
|
|
16GWDH01
|
101
|
102
|
1.0
|
1.58
|
|
16GWDH02
|
6721620
|
377399
|
-60
|
135
|
131.9
|
86.0
|
86.95
|
0.95
|
5.19
|