Kairos Minerals Ltd (ASX: KAI) has announced a strong start to its exploration field season at the Pilbara Gold Project in WA, with an initial program of rock chip sampling at the Skywell Project returning high-grade assay results.
The company reported that a high-grade gold anomaly was identified at the Skywell Project following an initial mapping and rock chip sampling program.
KAI said that five samples collected along 130m of outcropping quartz veins returned gold grades of up to 12.9g/t Au.
Kairos announced that it is targeting intrusive-related gold potential at Skywell, similar to the Hemi discovery located 60km along strike to the north-east.
The company said that further mapping, rock chip, and soil sampling programs will be undertaken to define the extent of the gold mineralisation.
KAI reported that an extensive airborne magnetic and radiometric survey comprising 2,146 lines for 13,920km has been completed across Kairos’ Pilbara Gold Project, with data processing now underway.
The company’s 100%-owned Pilbara Gold Project is located 120km south-east of Port Hedland in the West Pilbara region of Western Australia. In the Pilbara, Kairos also holds 1,547 square kilometres of tenure (granted and applications) which is highly prospective for gold discoveries.
Since acquiring the project in early 2016, Kairos has established a JORC Indicated 8.56Mt at 1.3 g/t for 366,000oz and Inferred 12.36Mt at 1.28 g/t for 507,000oz for a Total Mineral Resource of 20.93Mt @ 1.3g/t Au for 873,000oz.
Pilbara is receiving growing recognition as one of Australia’s most exciting emerging gold provinces, highlighted by De Grey Mining’s rapidly-emerging high-grade discovery at Hemi.
Kairos is progressing a focused, multi-pronged exploration program across Pilbara, focused on the discovery of new greenfields intrusive-hosted gold discoveries similar to Hemi.
Key initial targets include the Kangan and Skywell– both of which show strong prospectivity for intrusive-related gold, as well as the 10km long Fuego gold-in-soil anomaly.
Skywell is located just 50km south of Whim Creek with well-established access tracks.
Mapping and rock chip sampling
Kairos had recently completed an initial vehicle and helicopter-supported field trip to the Skywell Project in the Pilbara region.
KAI reported that the mapping and rock chip sampling program was conducted in the Pilbara Gold Project Exploration 47/3519 to 47/3521.
The company said that a total of 23 rock chip samples were collected and submitted to Intertek Laboratory in Perth for gold and multi-element analysis.
KAI said that this initial fieldwork was conducted to map and sample the prospective lithologies of the Sisters Supersuit intrusion, as well as to assess access tracks.
Anomalous gold from 7 samples
KAI said that a total of seven rock chip samples returned anomalous gold from a quartz vein cross-cutting a gabbro unit that is mapped as a mafic phase of the Sisters Supersuit intrusion. This gabbro intrudes as a sheet up to 700m thick near the base of the Mallina Formation.
The company noted that a major structural event took place after the intrusion, resulting in the development of synclines distinctively observable by the folded dark gabbro. KAI said that the vein is 1 to 3 metres wide and has been sampled over a strike length of 130 metres. It presents ferruginous alteration and strikes N025.
Kairos said that further sampling and mapping are required to define the extent of the gold mineralisation.
High-gold grades from 5 samples
The company announced that five rock chip samples returned elevated gold results above 1,000ppb gold (1g/t Au), up to a peak of 12,954 ppb gold (12.9 g/t Au) from quartz veins crosscutting the grabbro intrusion within the Mallina Formation.
This includes SWR008 – 4.1 g/t Au; SWR011 – 1.8 g/t Au; SWR013 – 2.3 g/t Au; SWR014 – 12.9 g/t Au; and SWR015 – 2.9 g/t Au
Updates and upcoming plans
Kairos said that soil sampling and mapping utilising the CSIRO Ultrafine+ techniques is currently underway at the Kangan Project.
KAI said that a soils and rock chip sampling program have been designed to follow up on the rock chip sample results at Skywell Project. The company said that this is planned to commence following completion of the current program at Kangan.
Kairos reported that it is processing the Results from recently completed aeromagnetic surveys across the Pilbara Gold Project.
The company announced an update on the earthworks for track access and drilling at Mt York and Fuego and said that contractor has been appointed and work is scheduled to commence mid-July. KAI said that the drill planning and contractor selection for Mount York and Fuego is now underway.
Kairo said that further mapping, geochemistry and rock chip sampling is planned.
Kairos’ Executive Chairman, Terry Topping, said: “Our 2020 exploration field season is off to a great start, with our very first program of vehicle and helicopter-supported mapping and sampling at Skywell delivering some impressive gold grades from rock chips.
These results are particularly significant given they were generated from reconnaissance rock chip sampling targeting a 130m long zone of outcropping quartz veins.
The presence of gold grades at these levels has defined a significant high-grade gold anomaly which clearly warrants follow-up. Gold can often occur in quartz veins on the margins of the sort of big intrusive-features we are targeting for potential Hemi-style discoveries, so this increases our confidence in the scale and potential of the opportunity here.
We are currently about halfway through an ultrafine soil sampling program at the Kangan Project and, once the team is finished there, we will relocate them to Skywell to undertake systematic soil sampling to help define drill targets.
Our multi-pronged exploration program is also advancing on other fronts, with the extensive airborne magnetic and radiometric survey over the broader Pilbara Gold Project now complete and data processing underway. We have also appointed a contractor to upgrade access to the Fuego gold target and we are in the process of finalising contractor selection for the upcoming drill program at Mt York and, following that, Fuego.”