THE DRILL SERGEANT: De Grey Mining (ASX: DEG) reported on progress of drilling underway at the Aquila Zone, located within the company’s Hemi gold discovery near Port Hedland in Western Australia.
De Grey Mining described Aquila as a parallel gold-sulphide zone located to the immediate north of the Brolga zone and adjacent to the new Crow zone to the north.
The company currently has RC and diamond core drilling in operation with three rigs operating between Aquila, Brolga and Crow testing for extensions of the gold mineralisation on an 80m by 80m basis.
A second RC rig is anticipated to arrive on site shortly.
The drilling at Aquila comprises step out drilling both along strike and at depth with the deeper drilling aiming to test approximately 80 to 100m below known mineralisation.
Drilling at Aquila extended 80m to the east on section 30,640E, returning results including:
41 metres at 6.8 grams per tonne gold from 181m, including 14m at 10g/t gold from 206m (Hole ended in mineralisation); and
16m at 1.6g/t gold from 144m.
Noteworthy depth extensions were also achieved, including:
69.5m at 1.3g/t gold from 80m; and
30m at 1.7g/t gold from 125m.
Shallow high-grade RC results confirmed previous aircore drilling on section 30,000E:
45m at 8.1g/t gold from 111m, including 16m at 13.2g/t gold from 114m (10gm lower cut); and
49m at 3.4g/t gold from 49m, including 19m at 5.1g/t gold from 50m.
“At Aquila, we still have not reached the limits of mineralisation,” De Grey Mining technical director Andy Beckwith said in the company’s announcement to the Australian Securities exchange.
“Step out drilling shows we are still in strong broad and high-grade mineralisation along the length of the deposit.
“Deeper RC and diamond drilling is planned to target approximately 100 metres below mineralisation as well as further extensions along strike.
“We announced on Friday (5/6/20) that we would be increasing the number of aircore and RC rigs on site.
“This will allow us to expand aircore drilling coverage immediately around Hemi and at the other nearby intrusions including Scooby, Shaggy and Antwerp.
“The additional RC rig will allow us to follow up the positive aircore results that are extending mineralisation and to continue defining known mineralisation.
“Wide spaced aircore drilling is currently advancing to the west of Aquila.
“Aircore holes have intersected encouraging alteration approximately 500 metres to the west of Aquila.
“The alteration appears similar to alteration at Aquila.
“Samples from these aircore holes will this week be dispatched for assaying.”