MDZ Location

  MDZ Plan View

MDZ Isometric View

  MDZ North Limb

   MDZ Main Limb

  MDZ Projection

THE MAIN DISCOVERY ZONE (“MDZ”)

We now have a good understanding of mineralization on the MDZ down to 450m, where we have drilled with some intensity, and our probes to 950m below surface show continuing strong mineralization. A total of 96 holes, totalling 34,014m, including sidetracks, have been drilled in the MDZ area since commencement of the project.

The concentration of gold in the MDZ is largely stratabound in quartz-sericite schist in which pervasive gold values in a thick envelope are associated with disseminated arsenopyrite, commonly with realgar, orpiment (all of which are sulphides of arsenic), stibnite and pyrite, some molybdenite and abundant quartz veinlets. There is a barren silica flood zone to the immediate north and east of this envelope that appears to define one wall of the mineralized body. Within the envelope of gold values five higher grade shoots have been identified, but the higher grade gold mineralization is not entirely constrained by either the original lithology, nor by the overprinted metamorphic fabric and facies.

The gold in the MDZ follows a complex structure of a distorted open 'Z' fold which tightens with depth. The upper bar of the 'Z' is called the North limb: the diagonal and lower bar comprise the Main limb. To the immediate west of this 'Z' are three lesser bodies, two concentric with the Main limb (Main Hangingwall #1 and #2), and a third (Axial) that bisects the acute angle between the North and Main limbs. The North Limb and the Axial limb dip at steep angles (>75º) to the northwest and west. The Main Limb and its parallels dip, for the most part, vertically, or at very steep angles (>80º) to the west, locally reversing to the east. The entire fold system plunges very steeply north.

Now that the structure is better understood, several gaps in the drilling pattern have been identified. Many of these merely require some infill holes. Other drilling gaps suggest more extensive targets. Near surface, drilling has followed the North limb some 200m west of the axis of the fold, while at depth, the North limb has only been targeted for some 70m west of the fold axis. The strike remains open in this direction, with some geophysical indications that the stratigraphy continues, with minor fault disruptions. To the east of the MDZ, the nearest offset drillhole is some 500m away. The eastern tail of the Main limb of the MDZ has never been followed up by drilling, where there are several aeromagnetic targets in what appears to be the same stratigraphic horizon. All 5 of the constituent bodies of the MDZ are open to depth.