The targets – Patterson’s Hut, Ruth Well North and Pipeline – were identified in the first regional-scale compilation of geochemical data in the Karratha region.
This program also resulted in Artemis identifying new extensions at the existing Silica Hills and Nickol River targets.
Artemis’ executive director Ed Mead said: “Karratha until recently has remained relatively unexplored for its gold potential.
“This area-wide geochemical and rock chip survey indicates substantial gold prospectivity exists within Artemis’ extensive tenement package, all within a short trucking distance of our Radio Hill processing plant.
“The use of ionic geochemical analysis techniques in conjunction with traditional geochemical sampling has helped Artemis identify numerous new targets and projects such as Carlow Castle and Purdy’s Reward.”
Targets identified or highlighted by regional gold geochemistry.
Apart from the high-profile conglomerate related gold occurrences at Purdy’s Reward-Comet Well, the West Pilbara has a long history of small-scale gold production predominantly from quartz vein related systems.
Artemis noted the presence of shear zone hosted gold at Nickol River feeding alluvial/eluvial systems in the area and the axial plane quartz-gold-arsenopyrite mineralisation at the Weerianna Gold Project.
After consideration of this information with the multiple other known gold sources within the greenstones, geochemical exploration was initiated in the Carlow Castle area.
Based on the Carlow Castle success, sampling was subsequently expanded.
Broad regional soil geochemistry sampling was undertaken across the consolidated Artemis tenure on 400-metre spaced lines aligned north-south.
There were 12,247 samples collected 100 metres apart along these lines and a major multi-element suite of analyses were then conducted.
All the main areas identified in the geochemistry show multi-element responses.
Gold geochemistry responds strongly at Carlow Castle, Nickol River and Silica Hills, along with the new discoveries at Pattersons Hut, Ruth Well North and Pipeline.
At Patterson’s Hut rock chip samples in veins and gossanous chert returned up to 11.4 g/t gold across a 4.5-kilometre-long surface soil anomaly.
Rock chip samples of up to 5.04 g/t gold were returned from Ruth Well North across a 14-kilometre-long surface anomaly.
A soil geochemistry anomaly in association with numerous nuggets in shear zones has been identified across two 1.0-kilometre-long trends at Pipeline.
Targets being prioritised
Some infill sampling has been completed across the regional tenure and assays are pending.
Artemis is ranking and prioritising targets with plans for first pass aircore drilling being developed following receipt of Plan of Work and heritage approvals.