Rubix Resources Limited (ASX:RB6) has received interpreted results from a SkyTEM FAST airborne electromagnetic (AEM) survey completed over its 100% owned Lake Johnston Project, in Western Australia.
The Project has an area of 63 sq. km and is located approximately 105km west of Norseman, adjacent to the Archaean Lake Johnston greenstone belt and covering a portion of the Jimberlana Dyke.
The Emily Ann and Maggie Hays nickel mines, held by Poseidon Nickel Limited lie to the west of the Project. Recently completed interpretation of the AEM survey has delineated several encouraging anomalies located on and proximal to the margins of the Jimberlana Dyke.
Three of these anomalies are deemed priority for investigating the potential for sulphide conductors related to layered intrusions occurring within the Jimberlana Dyke.
The AEM anomalies delineated represent an exciting exploration opportunity for the Company, where limited activities have been historically undertaken.
Geoscience Australia (GA) and the Geological Survey of Western Australia (Department of Mines, Industry Regulation and Safety) commissioned the AusAEM-WA survey as part of the national AusAEM airborne electromagnetic acquisition programme, to complete 20 km line separation AEM coverage over WA.
Flight-lines were flown to deliberately intersect geological points of interest, including outcrops, boreholes, locations with mineral occurrences and over areas with known kimberlite and meteorite impacts.
The survey was divided and flown, for logistical reasons, into four blocks. Block C, made up close to 4,200 line-km flown in an east-west direction over southern goldfields region of WA, with line 300601 flown along the Jimberlana Dyke which transverses the Lake Johnston Project from east to west in the middle of the tenement.
The programme was designed to deliver freely available pre-competitive geophysical data to assist in the investigation and discovery of potential mineral, energy and groundwater resources within Australia.
Funding for the survey came from the Western Australian government’s Exploration Incentive Scheme and additional support from the State’s COVID-19 recovery plan. The dataset was released in November 2021 by the Geological Survey of Western Australia (GSWA) in collaboration with Geoscience Australia (GA).
GA managed the survey data acquisition, processing, contracts, quality control of the survey and also generated the inversion products included in the data package.
The survey utilised SkyTEM Fast helicopter airborne electromagnetic system flown under contract to GA in 2020.