Commander Resources Ltd.
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The Sarah Lake property, one of several Commander nickel properties in Labrador, is 90 km south of INCO's massive Voisey's Bay nickel deposit. Significant nickel-copper mineralization, hosted by black and contaminated gabbros, has been intersected in a number of drill holes, and detailed studies show that enormous volumes of nickel have been segregated from the gabbro melt.

Work to date has failed to locate sufficient concentrations of nickel sulphides to account for this extensive nickel depletion. Drilling has focused on other South Voisey Bay properties leaving a number of very promising drill targets untested on the Commander properties.

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The Sarah Lake Project in South Voisey Bay is a joint venture by Commander and Donner minerals and covers a total of 35.5 km2.

Two holes drilled on Sarah Lake in 2003 encountered semi massive and disseminated sulphides at 500 to 600 metres depth. Down-hole EM surveying of one drill hole detected a strong off hole anomaly below the current drill depth. AMT--EM surveying has outlined a number of other high quality conductors requiring further drill testing on Sarah Lake and other lands held by Commander.

Sally, Sadie and Adlatok1 properties are not part of the South Voisey Bay Joint Venture. Sally and Sadie are 100% owned by Commander. Adlatok 1 is jointly owned by Commander 59.5 %, Donner Minerals 23.4 % and Pallum 17.1 %. Commander is the operator of the project.

Gabbro (Nickel host rock), is present on Sally and Adlatok1, extending potential for discovery of nickel sulphides. No drilling has been completed on these properties. The North Gabbro (shown in dark blue on the map) dips gently eastward beneath gneiss cover rocks on the Sarah Lake property.

About 60 line kilometres of AMT surveying on 1 kilometre spaced lines was completed on the Sally and Adlatok 1 properties. In the central portion of the Sally property, a strong conductor estimated to be one kilometre in diameter was identified. A second strong conductor close to 1500 metres diameter and open to the east was located on the eastern fringe of the Adlatok1 property.

Recent geological mapping on the Sally and Adlatok properties indicates that the properties are underlain by the Sally Gabbro. Mapping revealed significant "contamination" of the gabbro by a high volume of country rock fragments. The contamination enhances the nickel potential on the properties as the close association of nickel sulphides to highly contaminated gabbro is well established at Voisey's Bay.

The conductors on both Sally and Adlatok1 are interpreted to be situated several hundred metres below surface. This infers that the gabbro may be 300-400 metres thick, representing a large mass of material from which significant nickel sulphides could be segregated.


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To date, most significant nickel-copper mineralization at South Voisey's Bay is associated with the Black Olivine Gabbro and its basal Contaminated Black Gabbro. This setting is similar to the Voisey's Bay Ovoid and Eastern Deeps, where nickel-copper mineralization is also situated at the base of a thick contaminated gabbro.

SARAH LAKE PROPERTY

The Discovery Zone on the adjacent property is nickel situated in a basal embayment, which provides a pooling depression containing most of the available nickel-copper mineralization such as the Ovoid and Eastern Deeps at Voisey's Bay. There is ample room in the east and north portions of the Sarah Lake Property to host such a basal embayment.


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Recent drilling in 2003 has shown that such an embayment is developing in the north-central portion of the Sarah Lake Property. This drilling also showed that significant nickel sulphides are developed at the western fringe of the embayment.

A second basal embayment has recently been recognized in the southern portion of the Sarah Lake Property near the western boundary.


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As nickel and copper are derived from the gabbro melt, the volume of gabbro available determines the amount of nickel-copper metal, which may be segregated for ore body formation. The thickness of the gabbro is therefore important in order to increase the volume of gabbro available for ore body development.

When contours of thickness of gabbro are plotted as on this plan, it can be seen that there is significant thickening to the north and east into the Company's Sarah Lake Property. This is consistent with the development of the basinal embayment. The thinnest portion of the gabbro complex appears to be related to a basement high (Paleo Ridge), which may be a geological boundary between different gabbroic units.

The Contaminated Black Gabbro, situated at the base of the Black Gabbro, is closely associated with nickel-copper sulphides, as is evident in the Discovery Zone as well as at Eastern Deeps at Voisey's Bay. When contouring the Contaminated Black Gabbro it can be seen that it also increases significantly in thickness to the east in Central Sarah Lake, mirroring the total gabbro thickness. These thickening trends may follow the developing embayment with significant nickel-copper sulphide mineralization, as is the case at Voisey's Bay.

 


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