EXPLORATION & DEVELOPMENT

Nighthawk waits on more assays from Colomac drilling

Results continue to show wide intercepts of Archaean-rock hosted gold

Staff reporter
Colomac Main Sill long section showing 2020 drilling in relation to 2020 resource

Colomac Main Sill long section showing 2020 drilling in relation to 2020 resource

Nighthawk, which has about C$12.5 million in the bank, wants to drill 75,000m or more next year to elevate current Colomac indicated and inferred resources of about 2.1Moz.

This year's circa-23,000m campaign has picked up consistent intersections of the Archaean gold in what Nighthawk has described as fractionated mafic intrusions in the wider mafic volcanic rock stratigraphy, where it sees high-grade zones being controlled by structure and the metal more widely distributed through silica-rich fractions, or along the tops of sills.

Drilling at the southern end of a plus-7km line of strike taking in old workings and its modelled resources "continues to showcase Zone 2.0 and Zone 1.5 as the best mineralized sections of the Colomac Main Sill encountered so far", Byron said this week.

"This area of the sill continues to show strong continuity of mineralization and grade along strike and to depth, where the consistent widening of the quartz diorite host rock to depth, provides an excellent opportunity for continued resource expansion."

Best intercepts from three of the latest holes included true-width hits of 75m (142m) at 2.11gpt from 648m depth in Zone 2.0 and 12m (34.75m) of 2gpt from 239m depth in Zone 3.0.

Mineralisation is said to remain open along strike and at depth in both locations.

Nighthawk has reported results from 13 of 29 holes (16,421m) drilled at Colomac this year. It is also waiting for results from 15 holes (5,508m) drilled at the promising Treasure Island target 11km north of Colomac.

"Fallout from the COVID-19 pandemic has impacted assay turnaround as significant delays have been experienced in sample shipping and processing," Byron said.

"The company is currently working to resolve some of these logistics hurdles and is expected to have additional results ready for release in the near-term."

 

A growing series of reports, each focused on a key discussion point for the mining sector, brought to you by the Mining Journal Intelligence team.

editions

Mining Journal Intelligence World Risk Report 2023 (feat. MineHutte ratings)

A detailed analysis of mining investment risks across...

editions

Mining Journal Intelligence Mining Equities Report 2023

Access an exclusive, inside look on quarterly mining...

editions

Mining Journal Intelligence Global Leadership Report 2023: Social licence

Gain insights into social licence trends and best practices...

editions

Mining Journal Intelligence Project Pipeline Handbook 2023

View our 50 top-ranked mining projects, handpicked...