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![]() Mambrui: Rutile, Ilmenite and Zircon Summary
Two drilling programs were carried out at Mambrui between 1996 and 1997, comprising 100 reverse circulation drill holes and 13 deep holes (up to 100 m). In 2005, Snowden Mining Industry Consultants ("Snowden"), at the request of Tiomin, carried out a resource estimate for the project. Snowden reported an indicated resource of 301.4 Mt averaging 5.1% THM and an inferred resource of 129.3 Mt. averaging 4.8% THM. Exploration History Subsequent to evaluating a number of surface samples from this prospect, a drilling campaign was initiated in August 1996. As a result, two high-grade zones were delineated and a significant number of drill holes ended in mineralization. A total of 100 holes were completed using a reverse circulation drill rig. In order to get a better definition of the base of the deposit, a deep drilling campaign of 13 holes was undertaken during the first quarter of 1997. Geology The area is mainly composed of unconsolidated to semi-consolidated rocks of Tertiary to Quaternary time. The Mambrui deposit is located in the Magarini sands of Pliocene age forming bright red sandhills behind the coast. The heavy minerals contained in this formation are periodically washed out during periods of heavy rain and forms blacks streaks along the roads. Mineral Resources Snowden carried out a new resource estimate for the Mambrui mineral sands project in 2005. The mineral resource estimate has been carried out for THM, ilmenite/hematite fraction, non-magnetic fraction and the valuable heavy minerals: ilmenite, rutile and zircon. Snowden has reviewed the estimate in line with the NI 43-101 requirements in order to apply a resource classification. The Table below provides the classified mineral resource figures for Mambrui. Note that the contained mineral tonnes reported for each grade field are based on the % of the total tonnes (including slimes). For example, the indicated THM tonnes reported are 5.08% of the total 301.4 Mt. Mambrui Classified Mineral Resource Estimate
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