Iltani Resources (ASX:ILT) has reported assay results for its Union Jack and Boonmoo drill programs, part of its regional exploration program at the Herberton Project in Northern Queensland.
Drilling at Union Jack has confirmed the presence of sulphide-rich mineralisation in all holes, which Managing Director Donald Garner says validates the company’s systematic exploration within the Boonmoo Sag Caldera.
The results indicated elevated sulphide mineralisation, including silver, copper, lead, and zinc, an area with no surface expression of mineralisation at depth.
“We have lined the drillholes for a downhole electromagnetic survey [DHEM], so that will be the next step in better understanding the size of the system at Union Jack, so we can plan the next phase of drilling,” Garner says.
“We now know the Union Jack system hosts sulphide-rich mineralisation — we just have to work our way through the system to find the economic grades.”
Three reverse circulation (RC) drill holes were completed for 666m, testing the versatile time domain electromagnetic (VTEM) plates as well as the historical workings at Union Jack.
Two VTEM targets were lined with PVC pipe for follow-up DHEM surveys later this year.
Historical core at Isabel
Over at the Isabel deposit, Iltani has conducted a review of the historical diamond core, confirming ‘exceptional high grades’ and massive sulphide mineralisation hosted in quartzites.
Drill hole DMI-06 has reported intersections of 4.27m @ 168 grams per tonne silver (Ag), 654g/t indium (In), 0.5% tin (Sn), 1.1% copper (Cu), 1.6% lead (Pb), and 30.6% zinc (Zn) from 67.67m; and 5.18m @ 100g/t Ag, 363g/t In, 0.4% Sn, 0.9% Cu, 0.4% Pb, and 20.4% Zn from 74.52m downhole.
Diamond drilling at both Isabel and Isabel Extended is expected to commence within a week, with 10 holes planned for 1,800m at Isabel and one diamond hole planned for 200m at Isabel Extended.
Drilling at Isabelle will comprise three 50m-spaced traverses, targeting mineralisation defined in the historic intercepts. While historic drilling tested to 90m below surface, Iltani will now test to 150m below surface.
Iltani says it also continues to drill at Orient, currently focusing on the 103rd drill hole out of the planned 110-hole program. Drilling is expected to be completed within the next two weeks.
Iltani Resources is an Australian explorer advancing a portfolio of base metal, precious metal, and critical mineral assets.
Write to Amy Rotman at Mining.com.au
Main image: Iltani Resources
