TNM Drill Down: Top gold assays of the week July 29-Aug 4

Drilling at Musgrave Minerals' Cue project in Western Australia has delivered a new high-grade gold discovery. Credit: Musgrave Minerals

TNM Drill Down, released every Monday, focuses on the top gold assays of the past week. Assays are ranked by gold grade x width, as identified by our sister company Mining Intelligence 

Top gold assays July 29 to Aug 4, as identified by Mining Intelligence.

Australia’s Musgrave Minerals (ASX: MGV) had the top drill hole of the week July 29-Aug. 4 at its flagship Cue project in Western Australia’s Murchison district. Reverse-circulation (RC) hole 22MORC130 delivered 7 metres of 149 grams gold per tonne starting at 143 metres depth for an outstanding width x grade measurement of 1.047.9. The intersection included 1 metre of 1,040 grams gold. 

The hole was one of three drilled outside the current resource boundary at the White Heat-Mosaic deposit along the Break of Day trend at Cue that cut high-grade gold and extended the mineralization 30 metres below previous high-grade drill results. 

The Cue project, about 600 km north of Perth, hosts resources in the Break of Day trend (including White Heat-Mosaic) and the Moyagee Western trend. The Break of Day trend hosts a global resource of 982,000 tonnes grading 10.4 grams gold per tonne for 327,000 oz. contained gold. About 70% of the resource is in the indicated resource category. The Moyagee Western trend hosts 9.8 million inferred tonnes grading 1.7 grams gold for 541,000 oz. contained gold, according to a resource estimate released in May this year. 

Musgrave is conducting a 30,000-metres infill and extension drilling program at Cue, consisting of reverse-circulation, diamond drill and aircore drilling. 

White Heat-Mosaic has only been drill-tested to 170 metres depth. Mineralization, which remains open down-plunge, is characterized by quartz lodes within a high-titanium basalt unit.  

In second place was i-80 Gold (TSX: IAU) with a diamond drill hole from its Granite Creek project in Humboldt, Nev., with hole iGU22-45 returning 33.9 metres of 16 grams gold per tonne (grade x width of 542.40) from 152.6 metres depth. 

The intercept came from the Ogee zone, which is being drilled from underground. I-80 is drilling 30,000 metres from both surface, focused on the South Pacific zone, and from underground, focused on the Ogee, Otto and Adams Peak zones.  

The company is also conducting a 10,000-ton bulk sample from the underground zones. 

The project contains measured and indicated resources of 563,000 tonnes grading 10.45 grams gold per tonne for 189,000 oz. gold in open-pittable resources, plus open pit resources of 20.5 million tonnes grading 1.94 grams gold for 1.3 million oz. 

The Granite Creek property is located at the north end of the Battle Mountain-Eureka Trend, at its intersection with the Getchell gold belt in Nevada. I-80 notes that high-grade, Carlin-style mineralization occurs in a near-identical geological setting as at Nevada Gold Mines’ nearby multi-million-ounce Turquoise Ridge mine. 

And the third richest hole was from Carnavale Resources (ASX: CAV) at its Kookynie project in Western Australia. RC hole MNRC005 cut 11 metres of 44.3 grams gold starting (grade x width of 487.3) from 51 metres depth, marking a new high-grade discovery. 

The drill campaign was the first RC program at Kookynie, following up on previous high-grade aircore results at the McTavish North prospect.

The company recently completed a 30-hole, 5,210-metre drill program at the McTavish North (nine holes) and McTavish East (16 holes) prospects at Kookynie. The program also included aircore drilling to extend McTavish North and three diamond-drill holes totalling 491 metres targeting extensions of existing mineralization (results are pending). 

Carnavale has an option to earn up to 80% of the project from privately owned Western Areas. 

Kookynie hosts high-grade gold in pyritic quartz veins hosted in north-to northeast dipping structures crosscutting favourable lithologies, and in magnetic, granitic fractions of granite plutons. The project sits on the north-northwest trending Archaean-aged Malcom Greenstone belt. 

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