Westar Resources Limited’s (ASX:WSR) geophysical survey identifies significant magnetic trends at Gidgee South Project, with broader mineralisation corridor defined and confirmed by historical geochemistry.
The geophysical survey has highlighted a potential control on mineralisation for the historical workings, as well as laying the foundations for identifying additional targets within a broader mineralisation corridor.
Regolith evaluation drilling, complete with reverse circulation (RC) drill program at Gidgee South is to commence in late first quarter or early second quarter 2021.
Refining targets ahead of drilling
Westar Resources managing director Karl Jupp said the preliminary results of the newly acquired data are exactly what the company is looking for.
”The recently flown geophysical survey has been instrumental in recognising sub-surface geological features and it is very encouraging that several of these magnetic trends align with historical workings.
“Further positive indications are that these magnetic trends appear to strongly influence much of the anomalous geochemical data.
“This is exactly what we want to see to continue developing our mineralisation models and refining our targets ahead of drilling.”
Airborne geophysical survey
A magnetic and radiometric survey across the Gidgee South project was carried out and final magnetic, digital elevation model (DEM), radiometric data and gridded data were supplied in digital format to Southern Geoscience Consultants (SGC).
The high-resolution geophysical images and processing enhancements produced by SGC are now being interpreted and assessed as part of Westar’s target evaluation, ranking and prioritisation process, prior to planning follow up RC drilling.
Preliminary observations indicate north west - south east trending magnetic features, not evident in regional government geophysical datasets, that are parallel to and/or coincident to mapped historical workings.
In addition, historic geochemical data suggest this may form part of a larger mineralisation corridor extending south-east from the historical Birrigrin Mining Centre.
Going forward
Westar’s immediate activities at Gidgee South include:
- A litho-structural interpretation using the recently acquired geophysical datasets, incorporating historical data and Westar’s existing datasets;
- Define, rank and prioritise targets across the project area;
- Drill program design for drilling in late first quarter or early second quarter 2021 over high priority target areas; and
- Developing exploration strategies for untested magnetic targets.