To: George J. Tromp who wrote (1271 ) 10/5/1998 8:21:00 PM From: bill Read Replies (1) | Respond to of 2251
Snap Lake preliminary reports Winspear Resources Ltd WSP Shares issued 32,806,333 Oct 5 close $1.43 Mon 5 Oct 98 News Release Mr. Randy Turner reports The company has received preliminary results of the scoping study conducted by MRDA Canada, a division of H.A. Simons Ltd. on the northwest kimberlite dyke at Snap Lake, Camsell property, NWT. The Camsell Lake property is operated by Winspear on behalf of a joint venture in which Winspear's interest is approximately 67 per cent. The northwest kimberlite dyke subcrops on a peninsula on the northwest shore of Snap Lake. The strike length of the northwest dyke as established by drilling is approximately 850m. This kimberlite dyke dips gently eastwards under the peninsula and extends below Snap Lake where it has been intersected a distance of 1.8km east of the sub-crop in drill core along one section established by widely spaced holes. The northwest dyke remains open in both directions along strike and is also open down dip. The scoping study is based on 13 drill holes intersections obtained in 1997 and an additional 65 holes (4,025m) that have been drilled this season on the peninsula that is underlain by the northwest dyke. The area drilled measures approximately 850m along strike and between 200 - 400m wide. In this limited area, 46 holes were drilled this season on a regular pattern on approximately 70m centres. The remaining 19 holes were drilled this season on a regular pattern on approximately 70m centres. The remaining 19 holes were drilled within this grid on approximately 20m centres in an area proposed for the next stage of bulk sampling. These closely spaced holes are designed to provide information on local variations in the kimberlite. With the exception of those holes drilled to define the up-dip edge of the dyke, all holes intersected kimberlite approximately as expected. Over significant areas, the kimberlite has a relatively constant thickness and, as presently interpreted, shows only broad warps in overall attitude. Hypabyssal kimberlite as previously encountered in both drill holes and bulk sample material comprises the bulk of kimberlite in drill core intersections. The main dyke averages about 2.6m estimated true thickness but it locally splits into two dykes separated by up to 2m of country rock. In other restricted areas, drill holes encountered kimberlite breccia in which the breccia components comprise material similar to the immediately adjacent host rocks. These intersections of kimberlite breccia tend to be thicker than those of hypabyssal material and range from approximately 1.3 to 9.4m estimated true thickness. In the area of close-spaced drilling, four holes intersected breccia while two other widely separated holes also intersected this material. MRDI has prepared a geological solid model of the northwest dyke using drill data provided by Winspear. From this model, MRDI estimates that 1,348,000 tonnes of northwest dyke kimberlite underlie the northwest peninsula area of Snap Lake. This tonnage estimate is presently being examined by MRDI using conditional simulation techniques that will permit error margins to be placed on this estimate using thickness variations from hole to hole. This information will also help define drill hole spacing in future drill programs on that portion of the dyke that extends under Snap Lake. MRDI has also proposed that the northwest dyke kimberlite as presently under stood can be satisfactorily mined using a combination of open pit and underground techniques. MRDI concludes that a small open pit that conforms to existing NWT mining regulations could be considered on the northwest peninsula from which approximately 670,000 tonnes of kimberlite could be mined. They also conclude that by employing standard underground mining practices, 100 per cent extraction of mineable reserves could be achieved, except for safety crown pillars, on that portion of the northwest dyke that extends under Snap Lake. MRDI has applied its extensive knowledge of mining costs in northern climates to a hypothetical range of ore values and estimated tonnages for the northwest dyke to help evaluate for the joint venture the possible economics of mining this structure. Two models, both of which assume an ore value of $400 (Canadian), are reported below. The first model considers possible economics of only an open-pit mine established on the peninsula in accordance with existing mining regulations. The second model incorporates the first and also assumes that the northwest dyke continues under Snap Lake in a similar manner as has been documented by drilling on the peninsula. The area considered to supply the additional kimberlite required by the second model measures 1,000m along strike and 500m down-dip from the eastern edge of the open pit. Model 1: Assumes Open Pit only (processing rate = 1,000 tonnes per day) Assumed Tonnage of Kimberlite Mined: 667,000 tonnes Mine Life 25 months Assumed Ore Value * $400/tonne (Canadian) Assumed Diluted $380.95/tonne Ore Value (Canadian) Assumed Capital Costs $61.0-million (Canadian) Assumed Total $49.2-million Operating costs (Canadian) Total Cash Flow $99.5-million After Tax (Current (Canadian) NWT Tax Structure) Discounted Cash Flow Rate of Return (After Tax) 54.3% Model 2: Assumes Combined Open Pit and Underground Operation (Processing Rate = 1,000 tonnes per day) Assumed Tonnage of Kimberlite Mined: 3,500,000 tonnes Mine Life 10 years Assumed Ore Value * $400/tonne (Canadian) Assumed Diluted $380.95/tonne Ore Value (Canadian) Assumed Total Capital $103.8-million Costs (Canadian) Assumed Total $305.0-million Operating Costs (Canadian) Over Mine Life Total Cash Flow $572.4-million (Current NWT Tax (Canadian) Structure) Discounted Cash Flow Rate of Return (After Tax) 55.6% * Diamonds recovered from a 200 tonne bulk sample taken from the northwest kimberlite dyke previously have been reported as being valued at the equivalent of $343/tonne (U.S.) (approximately $500 (Canadian). For both alternatives outlined above, positive cash flow is achieved within the first 12 months of operation. Alternatives outlined above are based on assumed ore values and tonnage available to be mined. Considerable work must yet be done on the northwest dyke to verify ore values and to establish mineable reserves. However, based on results to date, potential project economics are robust. Studies to date have identified no insurmountable technical issues. Work is presently in progress to outline the next work program on the northwest dyke that is anticipated to include additional bulk sampling and diamond drilling. The purpose of additional work programs will be to advance the northwest dyke project towards a pre-feasibility level. (c) Copyright 1998 Canjex Publishing Ltd. canada-stockwatch.com