De Grey Mining Limited (ASX: DEG) has announced encouraging drilling update on the Aquila zone and Crow zone at the Hemi Gold Discovery in Western Australia.
The company announced that wide-spaced drilling has extended Aquila mineralisation down to 400 vertical metres and remains open.
High-grade results include 39.0m @ 1.3g/t Au from 389.0m (incl 8m @ 2.8g/t Au from 415.0m); 10.2m @ 2.5g/t Au from 254.0m; 5.0m @ 3.3g/t Au from 407.7m; 6.0m @ 1.7g/t Au from 268.0m; and 2.0m @ 7.1g/t Au from 211.0m.
DEG said that RC drilling at the Crow zone identified a new lode, approximately 100m north of Aquila, and defined mineralisation to over 400m down dip and remains open.
Highlights include 6m @ 2g/t Au from 41m; 16m @ 1.5g/t Au from 72m and 23m @ 2.8g/t Au from 95m (incl 3m @ 8.9g/t Au from 104m); 9m @ 3.9g/t Au from 138m in HERC207 (incl 2m @ 14.7g/t Au from 138m); and 3.4m @ 4.1g/t Au from 420.0m and 6.0m @ 1.9g/t Au from 445.0m.
The company reported that additional Crow mineralisation requiring further definition drilling includes 10m @ 2g/t Au from 125m.
Mallina gold project
De Grey’s Mallina Gold Project is located approx. 60km south of Port Hedland in the Mallina Province of Western Australia.
The project hosts numerous large deposits, of which significant gold deposits include Withnell, Mallina, and Toweranna, and other prospects that include Hemi, Antwerp, and Scooby.
Hemi is a discovery under 30m of transported cover, with two zones of strong, broad sulphide rich alteration with high grade gold mineralisation partially defined in the Aquila and Brolga zones. De Grey had recently defined a third gold in bedrock zone called Crow zone. Crow is a northeast-trending gold in bedrock anomaly.
Drilling at Hemi discovery
The company had recently commenced drilling at the Aquila and Crow Zones at the Hemi Gold Discovery.
At Aquila zone, the company had commenced a program of deeper extensional diamond drilling testing 200-400 metres below surface along an initial 800m of the 1.6km strike.
At Crow zone, DEG had commenced RC drilling targeting new mineralisation to the north of Aquila and throughout the large Crow intrusion.
De Grey reported that the results provide extensions at depth to the Aquila zone and also shows newly defined mineralisation at Crow zone in proximity to Aquila.
Aquila mineralisation extends to 400 vertical metres
DEG announced that the program of deeper extensional diamond drilling testing 200-400 metres below surface along an initial 800m of the 1.6km strike at Aquila has returned positive results.
The company reported that four holes have been completed and assayed, while the results of a further eight holes are pending.
De Grey reported that the outcomes from the first four holes completed holes extended the known mineralisation to 400vm with and mineralisation remaining open at depth and along strike.
Significant new drilling results include 39.0m @ 1.3g/t Au from 389.0m in HERC104D (incl 8m @ 2.8g/t Au from 415.0m); 10.2m @ 2.5g/t Au from 254.0m in HERC111D, 5.0m @ 3.3g/t Au from 407.7m in HERC105D; 6.0m @ 1.7g/t Au from 268.0m in HERC110D; and 2.0m @ 7.1g/t Au from 211.0m in HERC100D.
The company announced that the RC drilling targeting near surface mineralisation is underway in the west of Aquila.
New lode identified at Crow
De Grey reported that the RC drilling at Crow has targeted new mineralisation to the north of Aquila and throughout the large Crow intrusion.
The company announced that the first pass RC drilling on 160m sections and 80m collar spacing was completed over approximately 600m of strike. DEG said that infill RC sections to 80m spacing are nearing completion and several of the Aquila diamond holes have been extended to test the Crow intrusion at depth.
De Grey said that the results of the initial 160m spaced phase drilling at Crow have been received along with a portion of 80m infill sections.
DEG reported that encouraging new zones of mineralisation have been defined and further results are pending from shallow RC drilling and the diamond core extensions.
Significant results include 6m @ 2.1g/t Au from 180m in HERC080; 4.3m @ 2.7g/t Au from 129.2m in HERC081D and 2.4m @ 6.4g/t Au from 163.5m; 19m @ 0.9g/t Au from 185m in HERC088; 3.4m @ 4.1g/t Au from 420.0m in HERC111D and 6.0m @ 1.9g/t Au from 445.0m; 13m @ 1.1g/t Au from 50m in HERC123; 10m @ 2g/t Au from 125m in HERC135; 6m @ 2.0g/t Au from 41m in HERC202, 16m @ 1.5g/t Au from 72m and 23m @ 2.8g/t Au from 95m (incl 3m @ 8.9g/t Au from 104m); and 9m @ 3.9g/t Au from 138m in HERC207 (incl 2m @ 14.7g/t Au from 138m).
De Grey reported that follow up aircore drilling will be undertaken to test for strike extensions to mineralisation. The company also announced that programs of follow up RC and diamond drilling aimed at extending resources at depth and laterally are underway.
De Grey Managing Director, Glenn Jardine said: “Hemi is continuing to build through our drilling, this time with Aquila depth extensions confirmed and a new adjacent lode at Crow which is very encouraging.
Drilling has now extended mineralisation at Aquila to at least 400 vertical metres in the early stage of wide spaced drilling. Aquila stretches for at least 1.6km along strike and remains open in all directions.
A new mineralised lode has also been identified at Crow in proximity to Aquila. This new lode is already known to extend 400m down dip and has the potential to continue along strike. Closer-spaced drilling is being planned to further define mineralisation.
Aircore and RC drilling continues across Hemi with the aim of extending and defining the mineralised footprint. Aircore drilling is in progress in the greater Hemi area to identify new intrusion targets.”