Alto Metals Limited (ASX: AME) is preparing to commence drilling at the Indomitable target within its wholly-owned Sandstone Gold Project in Western Australia in the coming days.
The drill programme is planned to include testing potential interpreted high-grade mineralized structures highlighted from the recent results announced at the end of last year, including 25m @7.5g/t gold from 41m.
Drilling is also planned to test strike extensions at Indomitable East and Musketeer, and first pass drilling at the Cessna and Duke of Windsor prospects.
Alto also confirmed it has sighted visible gold from rock chip samples from an area south of Indomitable, the identification of additional near-surface targets between Indomitable and
In line with Alto’s focused exploration approach, the company has continued ongoing geological review and field work over the 20km long NW/SE trending gold corridor within the Alpha Domain. This work has highlighted a number of advanced near-surface targets, including between Vanguard and Indomitable Camps.
1. Cessna: is located approximately 1km south of Tiger Moth and appears to be a southern extension of the Indomitable Camp. within the Alpha Domain. Historical RAB and AC drilling reported significant gold mineralization which remains open and has not been followed up.
Mineralization at Cessna is defined over 140m of strike and remains open.
2. New Prospect (between Tiger Moth and Cessna): prospecting activity approximately 500m to the north of Cessna identified rock chips with visible gold.
3. Eclipse and Duke of Windsor: are located approximately two km SE of Cessna and situated along the same NW/SE orientation which hosts Vanguard and Indomitable. Eclipse and Duke of Windsor were mined underground in the early 1900s, with a total of ~860oz recovered at an average grade of ~17g/t gold. The prospects have not been adequately tested by drilling. Western Mining Corporation completed a small RC drill programme however did not hold the tenement and were unable to drill in the most prospective locations. Troy Resources completed a small RAB programme, however it appears that the drilling did not successfully target the quartz reefs.
4. Bollinger: is located approximately 2km north of Indomitable and appears to be an extension of the Indomitable Camp. Historical drilling intersected potentially significant gold mineralization which has not been adequately followed up. In 2020 Alto completed three RC drill holes which included a previously announced shallow result of 28m @2.1g/t gold from 4.0m.
5. Indomitable East Extensions: located approximately 1.5km southeast of the Indomitable East prospect, within the same NW/SE structural trend, a number of historical drill holes intersected gold mineralization, with results from two RAB holes including 11m @ 3.3g/t gold from 24m and 19m @0.9g/t gold from 36m. The mineralization appears to be associated with banded iron formation in a similar geological setting to Indomitable East.
6. Bulletin: is located on the eastern limb of the Sandstone Greenstone Belt, approximately 5km north of Vanguard. Mineralization is defined over an area of approximately 1.5km x 1.5km and appears to be associated with quartz reefs, goethite altered quartz stringers within a porphyry intrusive and to the south is associated with banded iron formation. Historical drill results include 12m @2.2g/t gold from 46m and 7m @3.1g/t gold from 18m.
7. Bull Oak: is located towards the centre of the Sandstone Greenstone Belt, approximately 10km NW of Indomitable. The Bull Oak granite is a porphyritic intrusion with a strike length of approximately 500m and a width of up to 150m. The intrusion has relatively steep dipping boundaries and has not been defined at depth. Underground mining was carried out at Bull Oak from 1904 to 1943, targeting the higher-grade reefs. Historical production from the reefs are 10,617oz at a grade of 27g/t Au.
In 1997, Herald Resources carried out a small open-pit mining operation targeting oxide mineralization and recovered a modest 9,701oz of gold at 1.87g/t before ceasing mining. The style of mineralization at Bull Oak appears to be similar to that observed at Lord Henry, with multiple stack lodes within a granodiorite. Previously announced results from Bull Oak include 260m @0.4g/t from 36m drilled by Alto.
For further information please visit: https://altometals.com.au/