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Alto Metals kicks off drill campaign to test gold hints in soils

Alto Metals is chasing more gold at its Sandstone project in WA. Credit: File

Alto Metals (ASX: AME) has kicked-off a 4000m air-core drill program to interrogate new shallow gold targets identified from a recent infill soils program at its Sandstone North prospect, part of the company’s Sandstone gold project in the east Murchison region about 600km north of Perth in WA.

The soil results highlighted a gold anomaly over 1km of strike with values many times greater than average background levels that Alto is now looking to prove up with the drill rig.

The infill program was completed over the previous sampling area’s strongest gold response, covering 1200m -by-600m on 40m-by- 40m spacings. A coherent gold anomaly was identified for more than 1km of strike length, with values of up to 100 parts per billion gold. Background gold-in-soil values at Sandstone North are generally below detection at less than 1ppb gold.

The gold anomaly location correlates with a major north-south trending interpreted shear zone along a regional fold axis that is in a similar position, sitting about 1.5km along strike from historical workings and high-grade drilling results. Anomalous arsenic values are also potentially indicative of mineralisation present.

Previous exploration by Western Mining Corporation at the project demonstrated that arsenic is closely correlated with gold-in-lag surface samples.

Of even greater significance, it found arsenic is associated with gold mineralisation within the drilling completed below historical workings.

We are pleased to have a rig back on-site drilling at our Sandstone Gold Project. Given the structural setting and high-grade gold results reported in historical drilling at Sandstone North, we are excited to be testing these compelling regional gold targets.
Alto Metals managing director Matthew Bowles

The company says low-cost regional targeting work is ongoing, including over its Hacks West area, known for hosting numerous old workings and historic shafts.

It has been subject to limited modern exploration and the work will be completed in parallel with resource growth targeting work.

Alto’s Sandstone gold project covers about 740 sq km of the Sandstone greenstone belt in Western Australia and currently has an open pit gold resource of 17.6 million tonnes at 1.5 grams per tonne for 832,000 gold ounces, constrained within $2500 per ounce pit-shells, part of a total unconstrained mineral resource of 23.5 million tonnes at 1.4 g/t for 1,050,000 ounces.

Importantly the mineral resources are relatively shallow with over 90 per cent within 150m from surface.

Alto recently joined the one-million-ounce club and will no doubt be looking to this program to lift that number again.

And the market seems to think it can too based on Alto’s recent 58 per cent share price hike from 2.9c at the end of March to 4.6c today.

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