Growth focused Western Australian nickel company St George Mining Limited (ASX: SGQ) today provided an update on results from ongoing field programmes at its flagship high-grade Mt Alexander Project, located in the north-eastern Goldfields.
HIGHLIGHTS:
24/7 diamond drilling of electromagnetic (EM) conductors continues:
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New off-hole electromagnetic (EM) conductors have been identified by downhole EM (DHEM) surveys in MAD195 and MAD196.
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Three strong EM conductors were identified from MAD195 with modelled conductivity of 19,320 Siemens, 22,950 Siemens and 16,850 Siemens, respectively.
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Three strong EM conductors were identified from MAD196 with modelled conductivity of 69,926 Siemens, 27,000 Siemens and 32,235 Siemens, respectively.
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New off-hole EM conductors are located down-dip of previous drill targets, a highly prospective location for the extension of nickel-copper sulphide mineralisation at depth.
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Drilling of MAD199 – targeting the strong 19,320 Siemens conductor at 350m downhole depth – is underway with drilling at 64.2m downhole as of yesterday.
Drilling at West End confirms favourable intrusive host rocks at depth:
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MAD197 was completed in an unexplored area of the West End Prospect to test for the presence of intrusive-style rocks that have the potential to host nickel-copper sulphides.
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Thick 18.7m intrusive unit intersected from 493.9m downhole, confirming the western extension of the intrusive unit of the Cathedral Belt a further 200m to the west.
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DHEM survey of MAD197 scheduled for next week to search for conductive material around the hole that may represent massive nickel-copper sulphides.
Strong magnetic anomalies identified by airborne magnetic survey on e29/972 and e29/1041:
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New airborne magnetic survey has identified a series of strong linear magnetic features on E29/1041 that may represent an intrusive unit similar to that present in the nickel-copper sulphide bearing Cathedrals Belt.
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Discrete magnetic anomaly identified on E29/972 that may represent an intrusive body similar to the intrusive rocks that host nickel-copper sulphides elsewhere in the Mt Alexander project area.
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Drilling of these new targets is being prioritised and will be scheduled once a Programme of Works is approved.
24/7 Drilling of new EM Conductors
MAD199 is currently being drilled to test the new 19,320 Siemens conductor identified from the DHEM survey in MAD195. The diamond drill rig is operating with two crews, allowing for drilling 24/7. Drilling of MAD199 is at 64.2m downhole with the EM plate predicted to be intersected at 350m downhole. The targeted EM plate is modelled north-east from MAD195, within the down-dip extension of the intrusive unit. This is an ideal location for the potential extension of nickel-copper sulphides at depth.
John Prineas, St George Mining’s Executive Chairman, said:
“The science continues to support the potential for further significant mineralisation to be present in the large intrusive mineral system at the Cathedrals Belt.
“The recent petrographic analysis indicated that the nickel-copper sulphides in the Cathedrals Belt are likely to have been associated with a large igneous event and the product of multiple magma pulses – factors that support the potential for a large mineral deposit in the Cathedrals Belt and elsewhere in the wider project area.
It is very pleasing to therefore see the latest downhole EM survey data at Investigators and West End identify larger and more powerful EM plates than previous analysis had recognised.”
