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Projects
IOCG Deposits
Development Projects
Exploration Projects
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Significant Resource Identified Our Barsele-Norra project lies in Sweden's rich Skellefteå mineralised belt, where at least 80 gold deposits have been discovered over the years. Originally explored under joint venture, we acquired 100% of Barsele in 2005 and focused our exploration on expanding the resource. Based on the 50 diamond drill holes completed since, combined with results from previous operators, we have defined a significant, NI 43-101 compliant gold resource (using a cut-off grade of 0.7 g/t Au): Indicated - 7,624,627 tonnes @ 1.60 g/t Au, or 393,324 contained oz. Inferred - 9,206,020 tonnes @ 1.51 g/t Au, or 437,041 contained oz. (More details in our March 2006 Technical Report) Resources Increasing With Exploration This resource is growing rapidly as our exploration continues. In fact indicated resources increased 26% from the previous, April 2005 Technical Report estimate, while the Inferred resources increased by 15%. Immediate Goal - 1 Million Ounces of Gold Exploration will continue through 2007. Our geologists plan approximately 8,000m of core drilling. Our immediate goal is to increase the combined resource to over 1 million ounces. We plan to accomplish this goal by:
The property's key target at this time is the Central Zone, which contains Indicated resources of 5.1 million tonnes grading 1.67 g/t Au and 4.1 million tonnes grading 1.62 g/t Au. The Central Zone remains open at depth. Possible Underestimation of Grade Our 2005 drilling showed that significant gold mineralization lies beyond the limits of the Central Zone resource defined by earlier exploration. Geologists also suspected the use of small diameter core in 1986 and 1987 drilling may have underestimated the average gold grade. They also believed we could increase the average grade by drilling with a larger diameter core. Our recent drilling has apparently confirmed this hypothesis, returning a number of intersections substantially greater than the average grade of the previous resource calculation. Our most recent drilling included the following highlights:
Our technical team will begin testing other high priority gold targets, such as the Skirträskbäcken prospect which is a direct continuation of the Au-mineralized trend that hosts Barsele and forms part of the Barsele project area. Northland has been carrying out a campaign of Base of Till (BOT) sampling and review of historical data with the aim of defining additional drill targets. Two target areas have been identified to date and further work in these areas will include:
Exploration History Mineralization at was first discovered at Barsele in the 1980's by Terra Mining. Exploration has been conducted on and off for 25 years by Terra, Minmet and most recently Northland. In the ten-year period from 1985 to 1995, Terra drilled 319 diamond core and RC holes, totalling just over 30km of drilling. Minmet plc, an Irish based mining company, drilled an additional 7 core holes for a total of 1,046m. Northland has drilled at Barsele for much of 2006, and we anticipate drilling into early 2007 as we work toward a revised resource calculation. Geology and Mineralization The Skelleftea district contains some 80 separate massive sulphide deposits and lode gold deposits. The high grade Bolidean high-sulphidation gold deposit is located at the eastern end of the district and produced over 8 million tonnes of ore at an average grade of 15.5g/t Au, 1.4 5 Cu and 0.9% Zn. The cluster of gold deposits known as Barsele/Norra is located at the intersection of the Skellefteå and GoldLine metallogenic trends. The Skellefteå trend is dominated by shallow syngenetic to gold rich base-metal deposits, and the GoldLine trend is dominated by deeper mesothermal, intrusion hosted gold mineralization. There are 2 broad types of mineralisation at the Barsele-Norra project:
Preliminary Metallurgical Testwork We commissioned OMAC Laboratories Ltd., Loughrea, Ireland to carry out preliminary metallurgical testwork Barsele's gold mineralization. Cyanide gold solubility tests were conducted on eleven samples from the Central Zone. The average size of sample used in the test was 913 grams. Samples were ground to 200 mesh, which is a similar grind size to other gold operations in the area. The test (Au7a Accelerated Active Leach with Leach Aid) indicates high recoveries of cyanide soluble gold, yielding an average gold recovery of approximately 92%. Recoveries for individual tests ranged from 84.9% to 99.4% gold recovery.  |
Tapuli
Hannukainen
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