Great Boulder Resources (ASX:GBR) says it has intersected the highest grade result to date at the company’s Eaglehawk prospect.
The company reports 3m @ 46.70 grams per tonne gold from 139m, including 1m @ 79.50g/t gold from 140m in 25MBRC006.
Managing Director Andrew Paterson says this is another “sensational drilling result” from Eaglehawk.
Aircore drilling is ongoing at Eaglehawk defining the dacite contact to the north and east. About 16 holes remain to be drilled.
A small reverse circulation program is planned immediately south of Ironbark testing a possible plunge orientation. Once this is complete, the company says the rig will return to Side Well South to follow up significant gold mineralisation discovered during first-pass aircore drilling in January and February.
“We’re seeing the results of our improved exploration targeting focused on these very high-grade veins along the and within the dacite contact and this is the highest-grade drilling intersection we’ve seen to date,” Paterson says.
“This result is a new zone of high-grade quartz-sulphide vein mineralisation in an area of Eaglehawk that is not well tested. It’s an immediate target for follow-up in the next round of RC drilling.”
Hole 25MBRC006 is a new high-grade vein within a relatively under-explored area between two clusters of previous drilling, adding what Paterson says is valuable definition and also demonstrating the scope of this deposit to deliver high-grade ounces in areas not previously tested.
Paterson notes Great Boulder is still waiting for the last four reverse circulation holes from this program, after which it expects to see the first batches of aircore assays coming through.
Some 11 reverse circulation holes were drilled at Eaglehawk targeting high-grade gold mineralisation along the contact between dacite and the surrounding andesitic volcaniclastics. Two additional holes were added at the end of the program to follow up high-grade intersections in the first batches of results including 29m @ 4.79g/t gold from 76m, as reported by Mining.com.au.
Seven RC holes were also drilled at Mulga Bill to add definition around recent extensional drilling north of the current mineral resource. Assays have now been received for 16 holes, with the last four sets of results expected shortly.
The company’s flagship Side Well Gold Project near Meekatharra in Western Australia hosts a mineral resource estimate of 668,000 ounces @ 2.8 grams per tonne of gold.
Write to Adam Orlando at Mining.com.au
Images: Great Boulder
