UDZ Location

UDZ Schematic Plan

UDZ Tranparent Plan

   UDZ North Limb

  UDZ Central Zone

   UDZ South Limb

  UDZ Schematic

THE UPPER DUCK ZONE (“UDZ”)

The UDZ, 1,200m to the southwest of the MDZ, is an entirely separate and different feature. The primary locating feature was originally a robust silicate-sulphide facies banded iron formation, that is garnetiferous, rich in magnetite, and commonly shows minute specks of visible gold in pyrite-pyrrhotite-arsenopyrite bands. The zone strikes roughly 050º, dipping steeply (65º) to the northwest in mafic to intermediate volcanics. To the east, it is disrupted by intrusion of a porphyry stock and eventually cut off by gabbro. To the west, the feature is interrupted by faulting. The gold mineralization is constrained by neither lithology nor stratigraphy, with some higher values occurring in feldspar porphyry, in close proximity to iron formation, generally associated with the same characteristic arsenopyrite. Some interference by intrusive porphyritic felsic dykes complicates what is otherwise a relatively simple body which has returned good and fairly consistent gold values.

At least three sub-parallel tabular bodies in close proximity comprise the UDZ. These appear to be fold repetitions of the same iron formation, doubling back on itself in a tight 'Z'. The sharp differences in thickness of the iron formation between adjacent holes and some additional repetition, corroborated by a rare exposure uncovered close to the Upper Duck subcrop, showing repeated 'Z' style folding on the meso- to micro- scale, reinforce this interpretation.

There are several gaps in the evaluation drilling pattern on the UDZ, most particularly in the shallower areas, where good drill locations are restricted by lake and swamp conditions. These are good targets for infill drilling. Strike potential is limited by dyke intrusives to the east and by faulting to the west, but the deposit is open at depth. The next intersections of encouraging values occur in West Duck 77, some 300m west of the faulted cutoff.