VTEM (Versatile Time Domain Electromagnetics) Survey
The VTEM survey system operates on the same principal as a metal detector and has the ability to detect massive to semi-massive sulphide mineralisation from near surface to depths of up to 300m. Following receipt of the preliminary VTEM results (as announced on 29 June 2015), the identified VTEM target areas were modelled. Modelling targets were chosen based on their proximity to existing VMS mineralisation, geology, geochemistry, structure and geophysical signatures. The VTEM modelling process generates a 3D model of the conductive body identified from the VTEM survey to enable its prospectivity to be accessed.
Modelling of seven high priority VTEM target areas was completed to generate potential drill targets for follow up work. Priority targets have now been field checked to confirm that the anomalies were not as a result of cultural features and will now be followed up with further geological mapping, geochemistry, ground geophysical surveys to prioritise the targets for drill testing. Drilling is expected to commence towards the end of September 2015.
Initial assessment of the priority targets has identified a series of significant conductive anomalies around the existing VMS deposits at Lasail, Aarja, Bayda and new cluster of high priority anomalies around the Zuha project area. Modelling has identified a series of targets with the tops of the anomalies between 20-100m from surface, up to 350m strike length and some extending at too least 200m down dip from the top of the anomaly. Detailed modelling of the Lasail anomaly suggests that the conductive anomaly could reach as far as 500m down dip and initial analysis suggest the conductive anomaly has a strong relationship to the VMS copper mineralisation identified and partly mined in the early 1990’s.
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