West Wits Mining Limited’s (ASX:WWI) recent SkyTEM Heliborne Electromagnetic (HEM) survey has identified five target areas at its 100%-owned Cecelia Project in the Paterson Province of Western Australia.
The HEM survey delivered 1,205 line-kilometres across the entire 225 square kilometres tenement area at 200-metre spacing.
Five primary areas of potential bedrock anomalism were identified, resulting in 36 kilometres of infill survey lines to provide localised 100-metre spacing.
Cecelia project is around 70 kilometres to the east of Rio Tinto Limited’s (ASX:RIO) WINU project, and previous HEM surveys have proved successful in sourcing discoveries in the Paterson Province.
West Wits managing director Jac van Heerden said: “We are pleased to have kicked off fieldwork in this highly prospective region of WA, which hosts Rio Tinto’s WINU and Greatland Gold’s Havieron discoveries and has seen renewed interest from many explorers.
“SkyTEM’s completion of the HEM survey over the entire Mt Cecelia tenement will provide our geological team with important data to focus on drill target generation, having already identified areas of interest from the lithostructural desktop study.
“We look forward to receiving the results from the geophysics analysis and modelling of the data which is expected in late Q4, 2020.”
The HEM survey follows West Wits local exploration team’s initial reconnaissance trip in July which determined access and supply stations for future exploration and provided observations of the geological outcropping and other features.
The field trip identified large areas of the tenement to be under sand cover, which was a key motivator in commissioning the HEM survey.
SkyTEM is a leading player in the delivery of airborne electromagnetic (AEM), magnetic and DTM data used in the determination of the value of mineral exploration, hydrological or geotechnical projects.
Flying 30-50 metres above the ground level, SkyTEM completed the helicopter-borne electromagnetic survey covering the entire 225 square kilometres of tenement area, flying 1,205 kilometres survey lines at 200-metre spacing.
Mt Cecelia (red) location and overview exploration projects on the border of the Paterson Province and East Pilbara region.
Geoscience consultants engaged
West Wits engaged Southern Geoscience Consultants (SGC), which has worked closely with SkyTEM over the past 20 years, to provide geophysical expertise.
The preliminary data was received by SGC daily to independently assess the data quality/coherence and check for localised potential bedrock anomalism.
This resulted in five areas with potential anomalism being identified and in a further 12 infill survey lines being completed for an extra 36 line kilometres with survey line spacing reduced to 200 metres in these zones.
The infill flying was able to further refine and highlight the central locations for defined anomalies.
Data collected from the surveys will contribute critical information to the project reports and models and will primarily be utilised to:
- Determine the presence and depth of conductive bodies at depth;
- Obtain detailed 3D lithological information, including faulting and folding, where present;
- Provide geophysical input into the geological structural model over the area; and
- Assist in target definition for exploration drilling Additional information that may be obtained from the HEM survey data.
Data processing started
SkyTEM has started final data processing efforts with data deliverables due in late October.
Final interpretation and enhanced processing will be undertaken by SGC and this is expected to be completed in the next quarter.
Identifying high-priority targets and guiding the next stage of exploration will start in April 2021, with the start of the field season in Paterson Province.