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Alto Metals defines shallow high-grade gold at Tiger Moth deposit

Last updated: 11:07 17 Sep 2018 AEST, First published: 21:07 16 Sep 2018 AEST

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Sandstone is about 630 kilometres northeast of Perth.

Alto Metals Ltd (ASX:AME) has defined shallow, high-grade gold mineralisation at the Tiger Moth deposit within its wider Sandstone Gold Project in Western Australia.

The grade, continuity and thickness of the mineralisation has been modelled using Alto’s recently completed aircore drilling program, as well as results from previous explorers.

Alto drilled 31 holes at the prospect – each 20 metres deep for a total of 620 metres – aiming to better define the shallow and flat-lying gold mineralisation that overlies the deeper Tiger Moth deposit.

The company is undertaking resource modelling and estimation based on all its available data.

 

Highlighted assays from Tiger Moth’s laterite mineralisation include: 4 metres at 8.3 g/t gold from 7 metres; 4 metres at 5.3 g/t from 8 metres; 5 metres at 2.9 g/t from 11 metres; 2 metres at 4.8 g/t from 18 metres; 8 metres at 2.2 g/t from 9 metres; and 2 metres at 4 g/t from 8 metres.

Previous exploration at the project demonstrated that extensive blankets of gold mineralisation in laterite are prime indicators of substantial gold mineralisation at depth.

An example of this is the shallow 8,373-ounce laterite gold resource which formed a cap over historical 223,000-ounce Oroya underground deposit, or the surficial high-grade 70,175-ounce laterite gold resource which formed a cap over the 250,000-ounce Bulchina open cut deposit.

READ: Alto Metals extends large gold-in-soil anomaly at Hancocks prospect

Tiger Moth is about 20 kilometres southeast of the Sandstone township and was aircore and reverse circulation drilled by Troy Resources Nl in 2006.

Troy reported that the deposit is hosted in highly oxidised, high-magnesium basalts and differentiated basaltic units.

The gold mineralisation is related to stockwork quartz veining within saprolite.

A gold-bearing pisolitic, or lateritic, horizon is located above the saprolite-hosted deposits at depth of 10 metres below surface.

It is separated from the main mineralised bodies by a zone of gold depletion about 10 metres thick.

READ: Alto Metals defines Valiant gold anomaly at Sandstone project

Alto holds about 800 square kilometres of prospective ground in the Archaean Sandstone Goldfield in the East Murchison Mineral Field of WA.

Since acquiring the project in 2016, the company has compiled and reviewed a large legacy database ahead of a series of focused exploration and drilling campaigns.

Alto’s goal is the delineation of a plus-1 million-ounce JORC mineral resource that could become the basis for the re-establishment of standalone oxide and primary gold mining and milling operations.

Alto Metals MD speaks to Proactive at Resourcing Tomorrow 2023

Alto Metals Ltd (ASX:AME) Managing Director Matt Bowles speaks to Thomas Warner from Proactive on the sidelines of Resourcing Tomorrow 2023. Resourcing Tomorrow 2023 is Europe's largest mining event, taking place from November 28 to 30 at the Business Design Centre in London.

on 1/12/23