Augustus Minerals (ASX:AUG) has extended the Justinian prospect — part of the Ti-Tree Project in Western Australia — to cover a 3.2km by 1.1km area containing several distinct soil anomalies.
The anomalies appear to be coincident with diffracted splays of the Ti-Tree Shear around the Crawford Granite intrusions.
Augustus says it is possible that the diffraction around the more rigid granite bodies is causing dilation where the Ti-Tree Shear splays penetrate the host Leake Springs Metamorphics.
The news follows assays from a soil sampling and follow-up rock chip sampling program, which recorded results up to 16% copper and 5.32 grams per tonne gold.
Augustus reports the copper and gold uncovered in the rock chips support the anomalous soil sampling results from the recent regional survey, and adds that the prospect also showed anomalous levels of lead and zinc.
Mapping and rock chip sampling is continuing, with the aim of increasing the definition and tenor of anomalies to drill targets for future programs.
Further, the company says the new soil sampling has extended the copper-gold-zinc soil anomalies by 1.5km to the west of the historic coverage in the Crawford Bore area that was drilled last year.
Additional mapping and sampling is required to uncover the controlling structures.
Soil sampling also uncovered anomalous gold values over 5 parts per billion west of the Coo Creek Broken Hill-style massive sulphide target.
At the Howell’s Gap area, soil sampling identified areas of copper-lead-zinc anomalism focused along the southern contract between the Leake Springs Metamorphics and Durlacher Supersuite granite.
Augustus says another prominent trend follows a north-northeast trending fault which penetrates the Durlacher granite and the Leake Springs Metamorphics.
Meanwhile, a 5km-long zinc and lead anomaly has been defined over the Moogooree prospect, which has potential for Mississippi Valley-style massive sulphide mineralisation within calcareous lower units of the Carnarvon Basin.
This area has received some exploration in the past, however, further work is required to determine its untested potential.
Augustus Minerals is a mineral explorer focused on discovering critical minerals needed for EVs and renewable energy. The company holds 3,600km2 of tenements in the Gascoyne region of Western Australia.
Write to Aaliyah Rogan at Mining.com.au
Images: Augustus Minerals
