Since acquisition in 2007 of the Dubenski Property, Houston completed the following exploration work:
· Updated NI 43-101 mineral resource estimate was received. Gold ounces in the Indicated Category increased by 84%. A 10,730m drill program was recommended by P&E Consultants and B.J. McKay Ltd.
· Completed a Phase IV 4,900 m diamond drilling program on the Dubenski property. From December 2009 to March 2010 the drill program expanded the Dubenski mineralized zone from 365m to a length of 425m. It also confirmed that the Shaft and Central Zones are in fact one mineralized gold zone, renamed the Dubenski Gold Zone (DBGZ). The DGBZ is open to depth, and the east towards the Peninsula Zone.
· The most significant diamond drill hole of the Phase IV program was DB10-70 encountering 19m of 9.99g/t gold, including 3.10m of 57.28g/t.
· Gold mineralization was defined to a maximum depth of 130m. 64 of 95 drill holes from the Phase I, II, III, and IV drill programs encountered grades of 3.50 g/t Au or higher.
During Fiscal 2011 HLM completed the following exploration work on the Dubenski Property:
The recent drilling of Phases IV and V indicate that the previously outlined zones, Shaft Zone, East Zone and Central Zone etc are part of a larger continuous zone of alteration and mineralization that stretches from 22+30 E to 26+00E. This nomenclature has been maintained to facilitate digital modeling as each zone required a different capping value.
The known Dubenski gold deposit(s) along the DGZ are hosted by felsic to intermediate volcaniclastic rocks (tuffs, ashes and agglomerates), lesser amounts of intermediate volcanics and minor amounts of interbedded cherty sediments. Historically the deposit is comprised of three distinct gold zones which are concordant and parallel to the local volcanic stratigraphy. From west to east the shaft, central and peninsula zones made up the historical Dubenski Gold Zone. The third zone, the Peninsula Zone, lies east of the Central Zone under Flint Lake and would require drilling from the ice in winter or a barge in summer. Future plans by HLM on the Dubenski Property is to conduct downhole geophysical surveys with these deeper holes. Additional to exploration efforts at depth lies the necessity to increase the resource on the Dubenski Gold Zone via infill drilling and possible strike length extension to the east in the medium term.
B.J. McKay Ltd. has stated that “overall, the gold mineralized structure, referred to as the DMZ, dips vertical to steeply south, parallel to stratigraphy striking 105° to 110°, rather than the shearing direction which strikes 85° to 90°, dipping steeply north. Gold mineralization is concentrated within multiple pinch and swell zones / lenses or shoots of quartz-sericite schist (felsic to intermediate tuffs) in association with silicification and elevated pyrite mineralization. Not all silicified zones carry gold, and although gold is always associated with pyrite, the reverse is not always true. Typical accessory minerals to gold are black chlorite, quartz (± quartz and quartz-carbonate veins), sericite and occasionally trace amounts of fuchsite and chalcopyrite.”
Dubenski Mineral Resource Mineral Resource and Mineral reserve estimates
The most current mineral resource estimate in compliance with NI 43-101 and CIM standards was done on the Dubenski Property on the West Cedartree Project. The resource estimate was undertaken by Eugene Puritch, P.Eng. and Antoine Yassa, P.Geo. of P&E, Brampton, Ontario. The effective date of the resource estimate was October 31, 2009 and does not include any drilling phases done subsequent this date.
Table 3: Dubenski Gold Zone Resource Estimate Utilization Optimized Pit Shell
|
INDICATED |
INFERRED |
|||||
|
Cut-Off Au g/t |
Tonnes |
Au g/mt |
Au oz. |
Tonnes |
Au g/mt |
Au oz. |
|
Pit 0.65 g/t |
524,000 |
3.55 |
59,800 |
12,000 |
1.96 |
800 |
|
UG 2.5 g/t |
27,000 |
3.26 |
2,900 |
10,000 |
3.32 |
1,000 |
|
TOTAL |
551,000 |
3.53 |
62,700 |
22,000 |
2.57 |
1,800 |
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