A new ~100m, +3g/t gold intersection highlights the potential scale of De Grey’s Hemi discovery
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Special Report: Drilling at Hemi continues to hit “some of the best discovery intersections” De Grey has seen – including 93m grading 3.3 grams per tonne (g/t), just 39m from surface.
This huge intersection at the Brolga Zone (Section B) includes a 21m zone grading 4.7g/t gold.
Results above 5g/t gold are generally considered to be high-grade.
Notably, the new drilling has expanded the target sulphide zone to more than 200m wide with potential for more than 320m of strike.
Over in the Aquila Zone (Section A), drilling has defined a northeast trend more than 750m long, up to 50m wide, and 180m deep. Mineralisation remains open at depth.
Significant results at Aquila include 4m at 6.5g/t gold within a broader intersection of 11m at 3g/t gold from 193m and 9m at 7.4g/t gold within a 38m interval grading 3.4g/t gold from 55m.
The company currently has a reverse circulation rig and a diamond rig on site following up and extending mineralisation along strike and at depth.
Additionally, aircore drilling is ongoing to assist with defining mineralised trends for later follow-up.
“Early drilling at Hemi has produced some of the best discovery intersections that I have seen. Drilling to date, shows exceptionally wide, continuous and good grade gold mineralisation,” De Grey exploration manager Phil Tornatora said.
“Geological indications suggest that Hemi may be more of an intrusion related style of gold system rather than the more typical orogenic shear hosted style deposits of the Pilbara and other WA goldfields.”
Hemi was discovered in mid-December 2019 under a shallow ‘blanket’ of transported cover.
Since then, drilling has provided compelling support for the company’s theory that its rapidly growing — but grossly underexplored — 1.7-million-ounce Mallina project hosts numerous large deposits.
>> Now watch: 90 Seconds With… Andy Beckwith, De Grey Mining