Nexus Minerals Ltd (ASX:NXM) (FRA:YAK) has launched its 2021 field exploration activities following up high-grade gold assay results received across multiple prospects at the Wallbrook Project, Eastern Goldfields, WA.
This will include multi-phase reverse circulation (RC) and diamond drill programs across a number of prospect areas, including Crusader, Templar and Paint prospects.
High-resolution ground magnetic surveys will also be undertaken, followed up with detailed gravity surveys to identify further targets for drill testing.
Diamond drilling at Crusader
A 1,100-metre diamond drilling program has started at the Crusader Prospect to test beneath the broad high-grade mineralised zone intersected in the company’s 2020 RC drill program.
Gold mineralisation at Crusader is closely associated with a quartz-goethite supergene stockwork in the oxide regolith profile. The stockwork intensity correlates closely with higher gold grades.
In the fresh rock, high-grade mineralisation occurs within a series of steeply dipping structures defined by quartz sulphide veining within a potassic altered volcaniclastic host rock.
Nexus drilling in 2020 tested the zone from 100 to 150 metres below surface, with every RC drill hole drilled intersecting mineralisation and encouragingly the gold mineralisation tenor and width both increasing with depth.
The drill programs planned for Crusader will test for depth extensions to the mineralisation, which has been drilled to a maximum 200 metres depth (remains open at depth), constrained only by the extent of drilling completed by Nexus to date.