2004 Report for Tamerlane on Great Slave Reef Lead-Zinc Deposits
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REPORT ON THE GREAT SLAVE REEF LEAD-ZINC DEPOSITS PINE POINT, N.W.T. FOR TAMERLANE VENTURES INC. 10TH FLOOR, 595 HOWE ST. Vancouver, V6C 2T5 By G. H. Giroux, P.Eng., MASc. Giroux Consultants Ltd. Ian McCartney, P.Eng. November 2001 Amended December 18, 2001 Amended May 13, 2004 TABLE OF CONTENTS Page 1.0 SUMMARY AND CONCLUSIONS 1 2.0 INTRODUCTION 2 2.1 Disclaimer 2 3.0 PROPERTY INFORMATION 3 3.1 Location and Access 3 3.2 Topography, Vegetation and Climate 3 3.3 Infrastructure 5 4.0 CLAIM INFORMATION 6 5.0 HISTORY 9 5.1 Chronological History of Pine Point 9 5.2 Exploration Phase 11 5.21 Cominco 11 5.22 Westmin-Dupont Project 13 5.23 Exploration Techniques 15 5.3 Mining 17 5.31 Open Pit Mining 17 5.32 Underground Mining 18 5.4 Processing 20 6.0 GEOLOGY 21 6.1 Regional Geology 21 6.2 Stratigraphy 22 6.3 Structure and Tectonsim 27 6.4 Alteration (Dolomitization) 28 6.5 Karstification 28 6.6 Mineralization 30 7.0 EXPLORATION POTENTIAL 31 7.1 Exploration 31 7.2 Mining and Processing 33 7.3 2002-2003 Work Program 34 7.4 Environmental Considerations 34 8.0 RECOMMENDATIONS 35 9.0 COST ESTIMATE 35 10.0 BIBLIOGRAPHY 37 11.0 CERTIFICATES 38 FIGURES Page 1 Location Map 4 2 Claim Map 8 3 Location and geological setting of Great Slave Lake area illustrating the Relationships between basement faults and the trend of the Pine Point barrier Complex 12 4 Multi-method geophysical profile, Section 375’W, Pyramid No. One ore body 16 5 Middle Devonian regional Facies 22 6 Summary of Stratigraphic Nomenclature 24 7 Subcrop Geology map of the Pine Point Area 25 8 Geologic cross section along line X-X' 26 9 Pine Point Lithofacies development through time 27 10 Examples of 4 Karst types 29 11 Past Mining and Remaining Deposits 32 TABLES Table 1: Claim information 7 Table 2: Pine Point District Production and Reserves from 1964 to 1983 Compiled from Pine Point Mines Limited Annual Reports 1964-1983 14 Table 3: Pine Point Mines Ltd. Deposits that have been Mined 18 1 1.0 SUMMARY AND CONCLUSIONS · This report is written for Tamerlane Ventures Inc. and outlines the exploration potential of the Pine Point Project, south of Great Slave Lake in the Northwest Territories. The project consists of 175 square kilometers of ground once held by Pine Point Limited, a subsidiary of Cominco Ltd. and ground to the west once held by the Westmin-Dupont joint venture. · The project is located about 800 km north of Edmonton, on the south shore of Great Slave Lake. Access is by 825 km of paved highway north from Edmonton to Hay River and then 90 km of paved highway to the old Pine Point town site. Access to many of the deposits within the project area is via gravel haul roads. · The Pine Point Project consists of 38 mineral claims, owned 100% by Ross Burns subject to a partnership agreement with Margaret Kent, covering 17,435 hectares plus another 8 claims covering 4,786 hectares staked by Pint Point Mines Inc. Tamerlane can earn a 60% interest in the property by paying $150,000 and issuing 1,200,000 shares of Tamerlane to the Kent Burns Group and completing a 3 phased cumulative $1.25 million exploration program by December 31, 2006. If this first option is exercised Tamerlane can acquire the remaining 40% interest in the project, subject to a 3% NSR royalty by paying $Cdn 1 million to the Kent Burns Group. · A fur trader first discovered lead-zinc mineralization on the property in 1898. Cominco Ltd. successfully mined the deposits through the subsidiary company Pine Point Mines Ltd. from 1965 to 1986. A total of 64 million tonnes averaging 3.1 % lead and 7.0 % zinc was produced from 50 different ore bodies. · Exploration at Pine Point was hampered by the westerly dip of the host dolomite reef under glacial overburden and swamps. The flat terrain and numerous deep swamps dictates that all drilling and geophysical exploration be conducted during the winter months. The most successful exploration technique was induced polarization geophysics. · Lead-zinc sulphide mineralization at Pine Point is hosted by Middle Devonian Givetian sediments, which have been subdivided into 5 main Formational groups. Most deposits have been identified within the Pine Point and Sulphur Point formations that make up the Barrier Complex. The main control on mineralization is the formation of karsts along structurally controlled mineralized trends. · The exploration potential at Pine Point lies in 34 identified mineralized lead-zinc deposits that were not mined by previous owners and large portions of the Barrier Complex that were under explored. The deposits were left undeveloped due to a combination of haul distance from the existing Pine Point mill, uneconomic depths for conventional open pit extraction and/or predicted high ground water inflow rates. The problems with long haul distances can be addressed by in pit crushers and concentrators. Under water mining techniques, currently used in South Africa, will be evaluated as a solution to ground water problems. Dense media separation will be evaluated to upgrade feed material from the mining operation prior to conventional 2 milling. A drive-in drive-out camp facility can reduce the high overhead of operating a town site. Finally, the continued weak Canadian dollar will provide added value to base metals sold in US dollars. · The Pine Point area is a very successful mining camp with the Pine Point Mines Limited operation (1965-1986) being among the most profitable in Canadian mining history. The potential exists to not only confirm the unexploited mineralization delineated by previous owners, but also to discover new mineralization within the camp. An exploration program has been recommended to explore the area and investigate modern exploration, mining and milling strategies. The program is spread over 2 years. The initial program in year 1 would complete a geophysical survey over the claim area to test modern geophysical techniques in locating and identifying Pine Point style mineralization at an estimated cost of $300,000. Phase 2 would confirm through drilling reported lead-zinc deposits and begin mining and metallurgical studies. The Phase 2 program is estimated to cost $270,000. 2.0 INTRODUCTION This report was written at the request of Tamerlane Ventures Inc. (“Tamerlane ”) to describe the mineral and exploration potential of the Pine Point Project on Great Slave Lake, Northwest Territories. Tamerlane can acquire, through an option agreement with Kent Burns Group, approximately 175 square kilometers of ground once held by Pine Point Mines Limited, a subsidiary of Cominco Ltd. and ground contiguous to the west of the Pine Point Property which was once held by the joint venture of Westmin Resources and Dupont. The writers base this report on a study of the literature and personal experience within the area. Gary Giroux completed a lithogeochemical study and a number of resource estimates for deposits within the Westmin-Dupont joint venture, in the early eighties. Ian McCartney held the position of exploration geologist for Cominco – Pine Point Mines and was based at Pine Point for three years (1985-87). Mr. McCartney oversaw a team responsible for major exploration and ore delineation drilling programs throughout the Pine Point Mines Property and achieved a discovery record at Pine Point. He also researched applicable rock geochemical techniques and presented a paper on the Rock Geochemistry of the N-81 deposit at the Geoscience Forum in Yellowknife in 1986. On May 9, 2004 Mr. McCartney visited the site. At that time the drill core storage area, access routes, current infrastructure, and the restored town site and mill site as well as several old pit areas were examined and documented with digital photos and video clips. The locations of all photos and observations were recorded as GPS waypoints. These photos and records of their locations are available at the Kent Burns Group office. 2.1 Disclaimer Any reference to resources or reserves within this report are based on historical documents. Without examination of the data the authors have no way of knowing if the procedures used would conform to the C.I.M.M. guidelines for National Instrument 43-101. It is not the intent of this report to imply that resources or reserves exist. This report is intended to suggest that significant drill indicated lead-zinc mineralized deposits were identified by past owners who considered them uneconomic at that time. The purpose of this report is to 3 outline an exploration program to collect and validate all available data, drill test known mineralization and determine if further work is warranted. 3.0 PROPERTY INFORMATION 3.1 Location and Access The Pine Point Project Area is located on the south side of Great Slave Lake, in the Mackenzie Mining Division of the Northwest Territories, and some 800 km north of Edmonton. The claims cover the geological feature known as the Great Slave Reef (or the Pine Point Barrier Reef) within NTS blocks 85 B-10, 11, 14, 15 and 16 (see Figure 1). The claim area is situated about 10 km south of the lake and about 60 m above lake level. Between Longitude - 114o and 115o 15’ West Latitude - 61o 0’ and 61o 45’ North The claims may be accessed by 90 km of paved road from Hay River, which lies due west of the claim group. This road runs longitudinally along the length of the current claim group. Hay River, in turn can be reached by 825 km of paved road north from Edmonton, Alberta.