De Grey Mining’s Eagle deposit has delivered promising drilling results, bolstering the potential for underground mining at the Hemi gold project in the Pilbara region of Western Australia.
An infill diamond drill program comprising 13 drillholes targeted a small area of the Eagle deposit located beneath the Hemi pit.
Highlights from drilling included 78.1m at 7.9 grams per tonne (g/t) gold from 457m in HEDD347, 23.9m at 5.1g/t gold from 425.1m in HEDD346 and 11.2m at 3g/t gold from 340.8m in HEDD344, including 4m at 7.6g/t gold.
The new results extend the Eagle mineralisation by over 100m down plunge, with mineralisation still open down plunge and along strike.
De Grey has been drilling at the Eagle deposit for several years as part of its broader exploration efforts at the Hemi gold project, but since the initial discovery, the company has conducted extensive drilling campaigns to delineate the deposit and expand its resource potential.
“Eagle continues to return outstanding intersections,” De Grey Mining general manager exploration Phil Tornatora said. “Mineralisation has now been defined for over 1km down plunge at Eagle, and it is exciting to see that it is still open.
“This program supports the ongoing studies into the potential for underground mining and demonstrates the upside that still exists at Hemi.”
The drill results reinforce the underground mining opportunity described in the Hemi underground conceptual study and highlights potential enhancements to Hemi’s production metrics.
De Grey will look to integrate these drill results into an updated mineral resource estimate (MRE), which is expected to capture the additional mineralisation and further define the geometry of the deposit.
The company will also focus on advancing underground mining studies to evaluate the feasibility of deeper mining scenarios.
Ongoing exploration drilling is planned to test the extensions of mineralisation, particularly down plunge and along strike, where the Eagle deposit remains open, potentially unlocking further upside for the Hemi gold project.
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