Alto enhances WA gold play with Sandstone probe
ASX-listed Alto Metals has upped the ante at its flagship Sandstone gold project in the East Murchison Goldfields of WA, after ongoing extensional RC drilling at the Juno lode stretched the venture’s high-grade mineralisation to over one kilometre in length. The company says Juno remains open, leaving the potential of a larger, precious metal honeypot a real possibility.
Alto’s latest probe saw the Perth-based miner plunge more than half a dozen holes at Juno for a total depth of 2,723m. The holes were sunk to a relatively shallow average depth of around 195m in the Lords Corridor yet delivered a medley of solid gold hits.
The goal of the campaign was to test Juno’s up-dip and down-dip extensions within a granodiorite zone and seek out mineralisation along the area’s ultramafic footwall contact.
Notable results include a 9m intersection recording 3.8 grams per tonne gold from 157m, including a 5m component grading 5 g/t gold from 160m.
Results from another hole include 7m grading 4.4 g/t gold from 163m.
Longer intersections include a 12m hit reading 2.1 g/t gold from 160m with a richer 1m component at 12.4 g/t gold from 169m in one hole, as well as a 17m strike grading 1.6 g/t gold from 159m with a 3m interval at 6.3 g/t gold from 171m in another
According to the company, the results have successfully extended mineralisation at Juno down dip and along strike. The new data also demonstrates the overall continuity of the high-grade mineralisation reported in earlier programs.
Alto is still awaiting the results of a further 7,500m drill program, including a probe of the Juno Lode about 600m south of Lord Nelson.
Juno marks the second high-grade lode defined within Sandstone’s Lords Corridor following the discovery of the Orion lode through step-out drill testing of the strike and plunge extensions of the zone’s foot and hanging walls.
The company says assays are currently pending for a further 2,650m at the Lords Corridor, that includes extensional drilling at the Juno lode and Lord Nelson deposit, along with the follow-up targeting of dip extensions of an earlier hole that yielded 67m at 2.3 g/t gold from 162m.
Drilling at the adjacent Indomitable Camp deposit has also commenced as part of a revised mineral resource estimate expected in the second half of the year.
Alto is planning a 60,000m drilling blitz at Sandstone this year, that will allow the explorer to perforate a number of its prospects at the project to expand its present resources and pursue other regional targets.
The company has its foot on a more than 12-million-tonne resource at Sandstone, grading 1.6 g/t gold for 635,000 ounces of the precious metal.
The miner says its gold sits at shallow depths of less than 200m and given it has now stretched its mineralisation to over a kilometre in length, the project may well be one to keep an eye on.
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