St George Mining (ASX:SGQ) reports it has intersected a ‘very’ wide interval of pegmatite in the first drillhole to test the ‘Manta’ seismic reflector at the company’s Mt Alexander Project in Western Australia.
The company reports hole MAD213 was drilled to test the source of the reflector. MAD213 intersected several intervals of coarsely crystalline pegmatite, including a continuous 120.8m thick interval of pegmatite from 631.2m to 752m downhole.
Additionally, the thickness of the main pegmatite intersected in MAD213, the interpreted flat geometry of the associated seismic reflector, and the potential for the pegmatite intrusions to intersect or underlie the adjacent greenstone sequence at shallower depth, supports a ‘compelling’ case for further drill testing.
The company reports several steep dipping, cross-cutting pegmatites were identified in the outcrop along a 15km corridor at the Mt Alexander greenstone belt. These pegmatites include lithium mineralised pegmatites at the Jailbreak Lithium Prospect, 9km south of Manta.

St George Mining Executive Chairman John Prineas says: “This is an exciting development in our lithium exploration at Mt Alexander. The early results from MAD213 are very encouraging with a large intersection of pegmatite that may be associated with significant structural activity.”
The pegmatite intervals from MAD213 are currently being sampled for assaying to determine if there is any anomalous mineral or geochemical composition.
“The early results from MAD213 are very encouraging with a large intersection of pegmatite…”
Further drilling at Manta is planned to test the pegmatites in April to test the potential for mineral zonation of the pegmatites, which is in the area of the interpreted granite/greenstone contact. This is where the seismic reflected is modelled to continue towards surface.
St George Mining is a mining exploration company focused on its flagship Mt Alexander Project in Western Australia, which ‘boasts’ Australia’s latest nickel-copper sulphide discovery. The company’s portfolio consists of the Mt Alexander, Paterson, and Broadview projects located in Western Australia.
Images: St George Mining Ltd



