PVW Resources Ltd’s (ASX:PVW) auger drilling program has returned results over 1-kilometre of strike at the Kalgoorlie Project in Western Australia, with the maximum value reaching 26 parts per billion gold.
Auger drilling has re-commenced on E27/614 and will return to E27/571 to extend the coverage with the Ultrafine analysis method and test along strike north of the new auger anomaly.
The anomaly is open along strike for over 3 kilometres to the northwest, with historical surface samples defining a low tenor gold anomalous trend.
Results are associated with similar geology to the Gordon-Sirdar gold deposit with polymictic conglomerate and plagioclase/hornblende porphyry mapped at both sites.
This confirms that the method of sampling and analysis are effective exploration techniques for the region.
Peak result of 246ppb gold
A peak result of 246ppb gold and six other samples of greater than 60ppb gold represent an increase in the tenor of anomalous auger samples compared to historical soil samples that show an anomalous trend >12 ppb gold.
Recognition that the low order anomaly in historical data may be a function of the medium sampled and/or the analysis technique used in 1995 suggests the areas previously sampled require further assessment.
The auger anomaly may also be a new trend highlighted over the plagioclase/hornblende intrusive and surrounding volcanics.
Elevated soil sample results from historic samples north of the PVW auger anomaly may indicate the continuation of a new anomalous gold trend.
Prospective geology
Tenement E27/571 straddles the same stratigraphy that hosts the Gordon Sirdar deposit to the southeast and is in the hangingwall to the Palm Gold deposit (Mulgarrie Mining Centre) to the northwest.
Mapping by JA Hallberg demonstrated the continuation of a Plagioclase/Hornblende Porphyry from Gordon Sirdar into E27/571 and this may be an important control on mineralisation.
Polymictic conglomerate/agglomerates are another important lithology at Gordon Sirdar and these also continue into E27/571.
Previous exploration
Historic RAB drilling has tested only a small portion of E27/571, with the deepest hole to 60 metres drilled angled to the southwest on the southwestern edge of the auger anomaly, hence this hole and others in the program have not tested the new anomaly.
Anomalous auger results in the southwest of the grid are controlled by a sheared shale unit, probably a silicified black shale at surface.
The unit is variably pyritic and veined with brecciation and shearing indicating strong deformation – a small shallow RAB program has partially tested this anomaly with no significant results.
Ongoing work
The sampling medium for auger sampling was kept consistent where possible, with preference for carbonate-rich material in the regolith profile between 0.5 metres and 2.5 metres.
Gold and multielement analysis were completed by Labwest, with the Ultrafine method chosen with a 0.5ppb level of detection.
Auger drilling will recommence immediately and continue until program completion.
Drilling is underway on E27/614 and will return to E27/571 to extend the coverage with the Ultrafine analysis method and test along strike north of the new auger anomaly.