Warrego East Copper-Gold Project, Northern Territory (NT) (MLS 80%)
The Warrego East project includes granted EL32725 at Warrego east and three EL applications, EL32397, EL32837 and EL32410, located in the Tennant Creek Mineral Field (TCMF) (Refer to Figure 1).
The TCMF has produced 25Mt @ 6.9g/t Au & 2.8% Cu historically, with past production coming from deposits discovered in areas with limited outcrop. The Warrego deposit – immediately west – was discovered under cover – with the Number 1 orebody contained within a strongly magnetic ironstone (associated with massive magnetite) ellipsoidal shaped near vertical pod – lying between approximately 140m to 790m depth below surface. A second major orebody at Warrego was discovered between 440 to 735m below surface. Metals Australia’s tenements are located on Cu-Au trends, aligned with the Warrego deposit.
Figure 1: Location of the Company’s Tennant Creek tenements with major Cu-Au deposits and targets
The Warrego East tenement (EL32725), is located immediately east of the Warrego high-grade Cu-Au mine deposit, which produced 4.95Mt @2% Cu and 8g/t Au. Warrego East sits within a major east-west trending fault corridor interpreted from detailed magnetics and the Company’s gravity survey imagery, that connects Warrego with the Gecko and Orlando copper-gold deposits to the east.
Recent geochemical drilling at Warrego East has tested five under-cover targets interpreted to be prospective for Tennant Creek style copper, gold and bismuth mineralisation similar to major high-grade deposits nearby (refer Figure 2). A high proportion of the drilling was focused on Target 1, located just 5km east and in a similar structural setting to the Warrego mine.
The new results from Target 1 yielded highly anomalous levels of copper, together with bismuth, cobalt and zinc – broadly and at depth. The mineralisation intersected also includes iron enrichment to 24% Fe, which indicates that a deeper zone of ironstone-associated mineralisation may lie below the broad, highly-anomalous (Cu-Co-Zn-Bi) geochemical halo – similar to the Warrego deposit.
The key results from the Target 1 drilling include:
- 18m @ 136 ppm Cu, 144 ppm Co, 279 ppm Zn, 10.1% Fe from 36m downhole in WERC004
- 24m @ 188 ppm Cu, 157 ppm Zn, 13.5% Fe from 28m in WERC011
- 9m @ 205 ppm Cu, 7.8 g/t Bi from 25m in WERC010
incl. 6m @ 225 ppm Cu, 9.7 g/t Bi from 28m
- 24m @ 232 ppm Cu, 326 ppm Zn, 11.2% Fe from 28m in WERC015
incl. 3m @ 376 ppm Cu, 192 ppm Zn, 11.3% Fe from 66m
incl. 6m @ 257 ppm Cu, 177 ppm Zn, 13% Fe from 45m
incl. 5m @ 384 ppm Cu, 432 ppm Zn, 14.2% Fe from 35m.
Figure 2: Warrego East, Total Magnetic Intensity (TMI) with major Cu-Au deposits, MLS targets & drilling
Figure 3: Warrego East, Target 1 magnetic anomaly with recent drilling interpreted mineralisation & structures
Figure 4: Warrego East, Target 1 cross section 381, 730mE showing recent previous drilling results & targets
