Stellar Resources Ltd (ASX:SRZ)’s assay results from the second Severn drill hole in this year’s drilling program have confirmed wide zones of high-grade tin mineralisation as part of the Phase 1 drilling program at its flagship Heemskirk Tin Project in Tasmania.
It intersected 20 metres of cumulative tin mineralisation about 100 metres down dip of the Severn inferred resource and 620 metres below surface.
They include the following intercepts:
➢ 6.0 metres at 0.51% tin from 586.0 metres;
➢ 5.0 metres at 1.27% from 601.0 metres; and
➢ 9.0 metres at 0.78% from 629.0 metres.
Results from the hole and the previous hole successfully demonstrate the continuation of the tin system at depth confirming the potential to significantly expand the Severn resource which remains open at depth and along strike.
Severn and Queen Hill are the two largest Heemskirk Project deposits with a combined mineral resource of 5.33 million tonnes at 1.0% tin, of which 40% is indicated and 60% inferred.
Largest of four deposits
Stellar Resources executive director Gary Fietz said: “These wide, high-grade tin intercepts from our second hole this year at Severn are very encouraging and further highlight the potential for the Severn resource to be expanded significantly.
“Severn is already by far the largest of the four deposits comprising the Heemskirk Tin Project and remains open down-dip and along strike."
Phase 1 drilling update
Six holes have been completed and two holes are in progress with a total of 3,283 metres drilled to December 14, 2021.
Geological logging and core cutting of completed holes ZO144 and ZW145 is underway with assay results expected in February.
Further drilling planned
Fietz continued: “We have now commenced a daughter hole (ZS143W), which targets the Severn mineralisation roughly halfway between the base of the Severn resource and the ZS143 intercepts.
“Given the positive results to date at Severn, further drilling is also now being planned at Severn.”
Daughter hole underway
A wedge off hole ZS143, ZS143W is in progress designed to test in-between the Severn inferred resource and the ZS143 intercepts.
Drilling of ZS143W is expected to be completed at the end of January, with assay results expected in early March.
Further Severn drilling
Two further drill holes are being planned at Severn as part of the Phase 1 drilling program.
Planning is also underway for a Phase 2 drilling program to begin at the end of Phase 1.
The phase 2 program at Severn and Queen Hill is expected to include:
➢ Severn resource extension drilling;
➢ Infill drilling of the Severn and Queen Hill inferred resource; and
➢ A deep hole to test the South Severn magnetic and conductivity target.