Has anyone gone back and read the "motherlode" announcement from the 13th June recently? Just some highlights below. I underlined the part about ST22-10 being open at depth.....only slightly entering the "big red blob" which "could represent potential areas of stronger copper mineralisation". There could be some ridiculous assays come out of deep drill holes into this thing??
‘MOTHER LODE’ TARGETS MODELLED BY 3D INVERSION A 3D inversion was completed on the gravity data to produce a series of gravity contrast iso-shells, which are designed to highlight the areas with the greatest density contrasts in 3D (Figures 5 & 6). These could represent potential areas of stronger copper mineralisation and are high priority drill targets.
The largest of the 3D gravity targets is located along the northern fault and directly underneath the 4100N Zone (Figures 5 & 6). The feature commences at approximately 200m depth and is approximately 2.3km long. The gravity feature is intersected by a strong historical IP anomaly on its upper contact. This is a highly significant association and indicates a both dense and electrically chargeable body. The only known dense and chargeable geological feature at depth in the Storm area are sulphides.
A number of gravity targets are also defined by the 3D inversion along the southern fault. The data indicates that a strong gravity target approaches the surface to the west of the high-grade 2750N Copper Zone. This location also features strong EM and IP anomalism associated with known copper mineralisation in sparse, shallow historic drilling (5m @ 2% Cu and 0.8m @ 20% Cu in drill hole ST00-66).
DRILL HOLE ST22-10 –THE EDGE OF A MAJOR COPPER SYSTEM? Exploration drill hole ST22-10 was completed during 2022 targeting a large EM anomaly to the west of, and at a deeper stratigraphic level than, the near surface high-grade 4100N Zone. The EM anomaly is located on the southern edge of a strong airborne gravity anomaly associated with the northern graben fault. The drill hole intersected a thick sequence of copper and zinc sulphide-bearing mineralisation hosted within carbonate sediments before being abandoned due to technical drilling issues. Approximately 68.8m of chalcopyrite-bearing sulphide mineralisation (Figure 7) was intersected from 277m downhole (approx. 230m vertical depth), remaining open at depth. The sulphide mineralisation is interpreted to be stratabound and is hosted within a vuggy, bituminous and fossiliferous unit.
Figure 7: Chalcopyrite (copper sulphide), pyrite (iron sulphide), sphalerite (zinc sulphide) and galena (lead sulphide) within vuggy bituminous dolostone in ST22-10 drill core from 313m downhole. A distinct zonation of metal associations and mineralogy is noted at the 4100N, 2750N and 2200N Zones at Storm: a large copper-rich core (chalcocite, bornite and covellite) gives way laterally and vertically to thinner peripheral zones of copper-iron (chalcopyrite), iron (pyrite), zinc (sphalerite) and minor lead (galena). ST22-10 intersected the peripheral mineralogical assemblage (chalcopyrite, pyrite, sphalerite and galena) suggesting the potential for a nearby larger, more copper-rich core. The metal associations and zonation of the mineralisation suggest that drill hole ST22-10 potentially intersected the edge a larger copper system.
Additionally, the geology displays all the elements required in the sediment-hosted ore forming process: permeable carbonate rocks to act as a fluid conduit and host mineralisation, hydrocarbons to reduce metalbearing fluids and force metal precipitation, sulphur source from bitumen and sour gas, proximity to faults known to be an effective source for plumbing, all within a favourable structural setting. These key features are similar to many of the world’s major sediment-hosted copper systems, including the deposits of the Kalahari Copper Belt (Botswana) and Central African Copper Belt (DRC, Zambia).
AW1 Price at posting:
25.0¢ Sentiment: Buy Disclosure: Held
