De Grey Mining Limited (ASX: DEG) has completed a new round of drilling at the Diucon and Eagle areas within the Hemi gold discovery in Western Australia, with results demonstrating the potential to rapidly and cost-effectively add to the project’s gold endowment.
The company said that the mineralisation in the southern lode of Diucon was extended to the west under sediments, while consistent mineralisation was intersected within a broad mineralised zone over the current strike of 600m at Eagle.
Significant new drilling results at Diucon included 14m @ 2.6g/t Au from 258 metres and 12m @ 1.3g/t Au from 294 metres; and 11m @ 7.7 g/t Au from 142 metres.
Important results from definition drilling at Eagle included 65m @ 1.2g/t Au from 42 metres; and 4m @ 3.7g/t Au from 84 metres and 9m @ 2.3g/t Au from 141 metres.
DEG said that the extensional drilling to the north and west to Antwerp is in progress.
Diucon and Eagle zones
Diucon and Eagle zones within the Hemi gold discovery in Western Australia are located immediately to the west of Crow and present a potential geological link between the Crow intrusion to Antwerp. The gold mineralisation at Diucon and Eagle shows similar alteration and sulphide development as seen at the adjacent deposits of Aquila, Brolga, Crow, and Falcon.
Both zones remain open and provide substantial potential to rapidly and cost effectively increase the gold endowment of Hemi with continued drilling.
Drilling at Diucon and Eagle
The company had conducted definition drilling at Diucon and Eagle on an 80m line spacing. The company had also recently commenced RC drilling at both zones at 160m line spacing and 80m hole spacing to test for strike extensions.
High-grade drill results
The company reported that encouraging results were reported from the drilling at Diucon and Eagle zones.
The company said that the definition drilling identified high grade near surface mineralisation extending further to the south of previously intersected mineralisation at Diucon. DEG said that the mineralisation at Diucon currently extends for approximately 900m along strike and remains open to the west and at depth.
DEG said that mineralisation plunging to the west was intersected beneath sediments in HERC851D on section 28720E including 14m @ 2.6g/t Au from 258 metres and 12m @ 1.3g/t Au from 294 metres. Mineralisation extends to the bottom of this RC pre-collar at 306m. The company said that a diamond tail was completed to 600m depth, showing visual indications of mineralisation extending below the pre-collar. Assay results are awaited.
Strong mineralisation was also intersected on section 28960E which included 50m @ 3.0g/t Au from 155 metres in HERC490 (including 5m @ 12g/t Au from 163 metres and 7m @ 6.0g/t Au from 197 metres); 53m @ 2.4 g.t Au from 43 metres in HERC900 (including 5m @ 14.2g/t Au from 67 metres); and 11m @ 7.7 g/t Au from 142 metres (including 3m @ 27g/t Au from 147 metres) and 6m @ 1.5g/t Au from 158 metres in HERC491D.
The company said that the RC precollar of HERC491D also ended in mineralisation and a diamond tail has been completed to 360m depth, with assay results awaited. Up to four subparallel lodes have now been defined at Diucon.
The company said that the mineralisation at Eagle currently extends for approximately 600m along strike and remains open to the west, north, and at depth.
Definition drilling results in the west of Eagle on section 28240E included 65m @ 1.2g/t Au from 42 metres in HERC807 (including 5m @ 4.3g/t Au from 42 metres and 4m @ 5.1g/t Au from 96 metres); 16m @ 1.0g/t Au from 120 metres and 33m @ 1.0 g/t Au from 155 metres in HERC808; and 4m @ 3.7g/t Au from 84 metres and 9m @ 2.3g/t Au from 141 metres in HERC809.
Other significant results included 4m @ 11.8g/t Au from 176 metres (including 2m @ 21.6g/t Au from 176 metres) in HERC811 and 9m @ 1.2g/t Au from 201 metres in HERC853.
The company said that follow-up aircore drilling will be undertaken to test for strike extensions to mineralisation. DEG said that the programs of follow-up RC and diamond drilling aimed at extending resources at depth and laterally are underway.
“These latest results confirm the presence of a large mineralised system at Diucon and Eagle”
De Grey Managing Director, Glenn Jardine, said: “These latest results confirm the presence of a large mineralised system at Diucon and Eagle. Both zones remain open to the west toward Antwerp with Eagle open to the north.
Extensional RC drilling to the west is currently being conducted on 160m spaced sections and 80m spaced collars on section. Mineralisation remains open at depth in both zones. Diamond drilling is targeting potential extensions beneath mineralisation previously intersected in RC drilling. RC drilling is also being conducted in places at 80m line spacing to confirm continuity of mineralisation within the existing footprint.”
Image Source: De Grey Mining Limited