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Background & Geology The Raglan Ni-Cu-PGE District is located in the Cape Smith Fold Belt – an east-west trending belt approximately 325 km long in the Ungava Peninsula of Northern Quebec. The Cape Smith Belt is part of the Trans-Hudson Orogen, an ancient orogenic belt some 1.8 – 2.2 billion years old that can be correlated with other Proterozoic rocks to the east in the Labrador Trough, and to the west in the Thompson Nickel Belt, Manitoba. Mineralization in the Cape Smith Belt occurs as bodies of Ni-Cu-PGE sulphide in two discrete trends. In the Northern Raglan Trend, sulphide mineralization is hosted by peridotitic sills which occur at the base of upper (younger) Chukotat Group. The Southern Trend consists of sulphide mineralization in peridotite-pyroxenite sills and intrusive bodies that are hosted by the lower (older) Povungnituk Group. Xstrata’s Raglan Mine is hosted in the Chukotat Group and consists of a series of many high-grade deposits that can be likened to a “string of pearls” distributed along a 55 km section of the belt. The operations include open pits, underground mines, a concentrator, power plant, accommodation and administration buildings, which are linked by all-weather roads to an airstrip at Donaldson and to the concentrate, storage and ship-loading facilities at Deception Bay. The ore is crushed, ground and treated to produce a nickel-copper concentrate with cobalt, gold and PGE by-products. Milling capacity is 3,000 tonnes per day.Nickel and copper are the primary metals but significant quantities of cobalt, palladium and platinum are also produced, adding to the overall profitability. Current reserves and resources stand at 25MT @ 3% nickel, 1% copper, plus Co, Pd & Pt. Mine exploration for further ore bodies has been highly successful for Xstrata with the mine replacing ore mined by the equivalent in new discoveries every year since operations began.
Goldbrook Land Assemblage Chart - Claim Assembly of Key Explorers
BELANGER AND NUVILIK During 2004, Goldbrook completed an exploration program which included geological mapping and prospecting, ground magnetic and electromagnetic surveys, 8133 metres of diamond drilling, and approximately 11,000 line km of airborne magnetic/electromagnetic surveys.
The "Belanger Trend" consists of a series of ultramafic-mafic intrusions that have been traced, discontinuoulsy, in an east-northeast trend direction, across the Belanger property for approximately 18 kilometres. The Belanger Trend of ultramafic-mafic intrusive rocks is interpreted to be part of the regional "Southern Trend" of ultramafic-mafic intrusive rocks in the Raglan District. It appears that the Belanger Trend may be continuous with ultramafic rocks to the east, on the adjacent Golden Valley / Little Mountain joint venture, which hosts Ni-Cu-PGE sulphide mineralization currently being evaluated. During the 2004 drilling program on the Belanger Trend, Goldbrook focused on two specific sections of what is known as the Getty Intrusion – namely the Getty Zone and the Sylvie Zone. The Getty Zone is comprised of disseminated to semi-massive and massive Ni-Cu-PGE sulphide mineralization hosted by pyroxenite. It is exposed on surface over a strike length of approximately 325 metres with a width from 15 to 50 metres. A total of 15 holes were drilled to test the Getty Zone during the 2004 exploration program. Drill hole BEL04-21 intersected 49.35 meters of sulphide mineralization, of which 15.90 meters are massive sulphide intervals which have a weighted average of 3.27% Ni, 0.99% Cu, 0.14% Co and 5.90 g/t PGE (Pt+Pd) (Table 1). The entire 49.35 meter intersection averages 1.35% Ni, 0.61% Cu, 0.06% Co and 2.88 g/t PGE. TABLE 1. Summary of Mineralization in Drill Hole BEL04-21
Note: The true thickness of the massive sulphide intersections are not known at this time. Diamond drill hole BEL04-21 is one of 15 holes that have tested the Getty Zone. Twelve of the 15 holes have intersected significant sulphide mineralization including disseminated to net textured sulphide, semi-massive and massive sulphide. Three of the 15 holes were drilled below the mineralized zone. The holes have been drilled across a strike length of 150 metres along the Getty Zone and have traced the mineralization to a vertical depth of 50 metres and indicate that the mineralized pyroxenite occupies a trough-like depression in the footwall rocks of the ultramafic intrusion. Mineralization is open along strike, to the east and west, and the plunge of the mineralized zone is presently unknown. Mineralized intercepts from the Getty Zone are summarized in Table 2. TABLE 2. Summary of diamond drill hole mineralized intervals in the Getty Zone
Note: BEL04-11, BEL04-13 and BEL04-20 were drilled below the mineralized zone. The Sylvie Zone is located approximately 1.3 kilometers east of the Getty Zone and is hosted by the same ultramafic-mafic intrusive body (the “Getty Intrusion”) as the Getty Zone.
Notes: In 2005, under the Joint Venture agreement with Anglo American, Anglo completed a systematic exploration program on both the Nuvilik and Belanger properties consisting of geological mapping and prospecting, geochemistry (including 3,885 soil samples), 505 line kilometers of geophysical surveys, and 2,700m of diamond drilling for 18 holes. Highlights of the 2005 drill program were as follows;
2005 Drill Hole Locations
Notes and Abbreviation: Distances (from and to) are down hole distances Length is intersection length True widths are not known at the current stage of exploration Grades are length weighted average grades g/t is gram per tonne NSA is "No Significant Assays" * indicates hole was previously released New showings of magmatic sulphides discovered in 2005 along the Belanger trend and elsewhere on both the Belanger and Nuvilik properties will be evaluated in 2006, in addition to geophysical anomalies derived from gound and borehole surveys. WAKEHAM AND UNGAVA PROPERTIES The Ungava and Wakeham properties located in the central and eastern part of the Raglan District are the subject of a $4 million systematic exploration program in 2006 by Goldbrook. The Wakeham property consists of a strategic land position along the potential eastern extension of the Raglan Horizon in the Chukotat Group rock units that host Xstrata’s Raglan Mine. One previously unrecognized zone of sulphide mineralization in peridotites and pyroxenites over an area approximately 10 x 10 km area, called the Nancy showing, was discovered in outcrop at the eastern end of the Wakeham property. Numerous additional targets exist over the landholdings including areas of mineralized boulders discovered by prospecting that require follow-up. The Ungava property covers the Povungnituk Group rocks in the South Raglan trend over potential eastern and south eastern extensions of known ultramafic assemblages that host known nickel-copper-platinum group element (“PGE”) deposits Numerous targets were defined by compilation of public and proprietary data over the extent of the property holdings and will be investigated during the field program. Goldbrook are using a multi-disciplinary approach to their exploration including helicopter-borne and ground electromagnetic and magnetic surveys to detect potential nickel-bearing rocks, geochemistry, geological mapping, prospecting and 3000m of diamond drilling. Fieldwork commenced in early July and is being led by Dr. Bill Stone, VP Exploration for Goldbrook.
Jamie Lavigne, P.Geo., former Vice President Exploration for Goldbrook, and Qualified Person as defined by National Instrument 43-101 was responsible for the technical information contained on this page | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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