Mr. Wayne Taylor reports
HERON RESOURCES: WOODLAWN DRILLING UPDATE: 27.7 M AT 23.4% ZNEQ FROM 401 M DEPTH
Heron Resources Ltd. has provided a summary of recent results from the phase 2 resource definition drilling program at its wholly owned Woodlawn project, located 250 kilometres southwest of Sydney, New South Wales, Australia.
Phase 2 drilling
The objective of the phase 2 drilling is to delineate sufficient measured and indicated resources which can be converted into an initial underground mineral reserve within the feasibility study sufficient to secure commercial bank debt project financing, and allow the project to proceed to mine construction. The phase 2 drilling program (comprising approximately 19,000 metres of diamond drilling) at Woodlawn is now 80 per cent completed, with 15,000 metres drilled, reflecting on-time and on-budget progress. In undertaking this program, the company has focused on minimizing project start-up time and capital costs by targeting relatively shallow-depth positions within the numerous lens. In addition, shallow mineralized positions that have the potential to provide ready-access production in the early phase of the planned underground operations are also being tested.
Kate lens -- recent assays:
- An assay of 27.7 metres of 23.4 per cent zinc equivalent from 401 m (6.9 per cent zinc, 3.9 per cent copper, 1.5 per cent lead, 1.0 gram per tonne gold and 75 g/t silver): WNDD0046;
- An assay of 3.9 m of 26.9 per cent ZnEq from 408 m (8.5 per cent Cu, 0.1 g/t Au and 8.9 g/t Ag): WNDD0053;
- An assay of 6.4 m of 9.0 per cent ZnEq from 419 m (2.8 per cent Cu, 0.1 g/t Au and 3.7 g/t Ag): WNDD0053.
The result in WNDD0046 confirms the width and high-grade tenor of the central upper part of the Kate lens, where the phase 2 drilling has identified a consistent thickening of the lens within a channel-like structure. This consistent thickening of the lens over about 120 metres of strike will have a positive impact on the overall tonnages estimated for the Kate lens and provide a thick zone for future mining.
The result in WNDD0053 is highly encouraging and better than anticipated from the initial logging of the hole, which was positioned to test for the limits of the lens in this direction; however, it instead intercepted a copper-rich northern extension to the Kate lens, which is likely to indicate further tonnages in this direction. Downhole electromagnetic (DHEM) surveying of this hole supports the idea that the lens plunges to the north between W060 and WNDD0034, and this position is being assessed for future drilling.
G lens -- recent assays:
- An assay of 4.7 m of 30.4 per cent ZnEq from 40 m (3.9 per cent Zn, 5.5 per cent Cu, 2.3 per cent Pb, 1.6 g/t Au and 203 g/t Ag): WNDD0057;
- An assay of 4.7 m of 22.4 per cent ZnEq from 52 m (6.1 per cent Zn, 2.3 per cent Cu, 4.0 per cent Pb, 1.4 g/t Au and 153 g/t Ag): WNDD0058.
These two results come from the same section of the G lens and confirm the shallow and high-grade tenor of mineralization here, targeted for the early part of the life of the mine. The mineralization is not oxidized, but has experienced some weathering and will undergo metallurgical testwork to optimize process plant recoveries. The lens in this position has a strike length of about 30 m and extends down plunge for about 70 m.
Kate extension target
A further review of the DHEM models for the previously reported Kate extension position has reinforced the view that a significant conductor exists with dimensions in the order of 150 m long and 200 m deep, but with thickness not defined. The conductance of the modelled plate at between 12 to 35 Siemans is lower than that for the Kate lens (50 to 80 S), and the conductive body is offset into the stratigraphic footwall by about 60 m relative to the Kate lens. This lower conductance suggests the possibility of lower copper content, which typically correlates with zinc-rich mineralization in the district. A program of up to three holes, utilizing drill hole wedging, is currently being designed to intersect the modelled plate and provide first-pass indication of the tenor of the mineralization.
Forward program
The company continues to make excellent progress with the phase 2 drilling program, and future work will focus on:
- Kate lens: a further infill hole targeting the southern copper zone;
- E, G and H lens: a number of shallow holes to covert areas to indicated mineral resource status;
- Kate extension target: finalization of drill plans to initially test this new high-priority target.
DETAILS OF MASSIVE SULPHIDE INTERCEPTS AND REPORTED GRADES FROM PHASE 2 DRILL CAMPAIGN
Hole No. From (m) To (m) Downhole width (m) True width (m) ZnEq (%) Zn (%) Cu (%) Pb (%) Au (g/t) Ag (g/t)
WNDD0023* 166.8 170 3.2 2.6 5.3 0.1 1.7 0 0.1 5.9
WNDD0024* 30 33 3 2.4 37.6 8.5 3.5 5.2 6.3 160.6
WNDD0025* 151.3 153.8 2.5 2.0 11.7 1.9 1.2 0.2 3.4 16.5
WNDD0026* 108.7 110.4 1.7 1.0 39.8 3.5 6.8 4.9 3.9 213
WNDD0027* 103.8 104.6 0.75 0.6 51.4 5.6 8.1 6.8 3.6 398
WNDD0029* 324.3 329.1 4.8 4.0 11 7.6 0.4 0.9 0.7 37.4
WNDD0029* 340 347.15 7.1 6.0 40.6 16.9 0.9 11.3 3.5 254.1
WNDD0031* 383.2 403.7 20.5 16.4 18.4 8.1 2.4 2.9 0.8 68
WNDD0032* 405.2 417.3 12.1 9.7 12.2 4.7 2.2 0.8 0.8 22.2
WNDD0033* 316.7 319.3 2.6 2.1 7.4 1.2 0.7 1.4 0.8 76.5
WNDD0033* 326 346.7 20.7 16.6 25.8 14.1 1 4.7 1.4 120.4
WNDD0033* 351.1 360 8.9 7.1 18.9 5.8 1.9 2.6 2.7 90.1
WNDD0035* 389.7 413 23.3 18.6 6.8 0.3 1.9 0 0.5 6.3
WNDD0037* 347.5 383 35.5 28.4 11.2 5.1 0.8 1.3 0.9 61.7
WNDD0038* 376.3 396.0 19.8 15.8 9.9 0.7 2.6 0.2 0.7 8.0
WNDD0039* 351.3 356.8 5.4 4.3 27.7 15.1 1.5 6 1 70.3
WNDD0042* 77.6 83.2 5.7 4.6 12.3 5.9 0.2 3.9 0.4 73.3
WNDD0044* 116.8 117.8 1.1 0.9 52.2 24 4.3 12.9 1.5 97.2
WNDD0045* 94.6 97.2 2.6 2.1 7.4 3.6 0.1 2.4 0.2 49.6
WNDD0046 400.6 428.3 27.7 22.16 23.4 6.9 3.9 1.5 1 74.6
WNDD0050* 103.1 108.4 5.3 4.2 10.1 1.4 1.6 0.9 1.3 62.7
WNDD0053 408.0 411.9 3.9 3.12 26.9 0 8.5 0 0.1 8.9
WNDD0053 419.3 425.7 6.4 5.12 9.0 0 2.8 0 0.1 3.7
WNDD0054 83.6 90.4 6.8 5.44 4.1 1.8 0.1 1.1 0.4 29.2
WNDD0054 106.0 112.8 6.8 5.44 4.5 2.8 0.5 0.1 0 0.7
WNDD0057 40.4 45.1 4.7 3.76 30.4 3.9 5.5 2.3 1.6 203
WNDD0058 52.4 57.1 4.7 3.76 22.4 6.1 2.3 4 1.4 153.3
Notes: True width is an estimate of the actual thickness of the intercept based on
interpreted lens orientation (approximately 80 per cent to 90 per cent of downhole
width, with 80 per cent used in this table as a general guide).
Grades are weighted-average grades, weighted by length of samples intervals downhole,
nominally one metre.
No weighting was applied for differences in specific gravity, which is most cases are
relatively low.
* Previously reported results.
Compliance statement (Joint Ore Reserves Committee 2012 and NI 43-101)
The technical information in this news release relating to the exploration results at the Woodlawn project is based on information compiled by David von Perger, who is a member of the Australian Institute of Mining and Metallurgy (chartered professional -- geology). Mr. von Perger is a full-time employee of Heron Resources and has sufficient experience, which is relevant to the style of mineralization and type of deposit under consideration and to the activity which he is undertaking, to qualify as a competent person as defined in the 2012 edition of the Australasian code for reporting of exploration results and qualified person as this term is defined in Canadian National Instrument 43-101. Mr. von Perger has reviewed this press release and consents to the inclusion in this news release of the information in the form and context in which it appears.
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