HIGHLIGHTS
• Assays confirm extensive strong copper mineralisation in BTDD004 with significant zones of high grade copper from distal part of interpreted porphyry system. Copper mineralised over almost entire length of 658.9m hole:
Overall Copper intersection:
• 632m @ 0.21% Cu, 0.03g/t Au, 0.60ppm Ag, 18.0ppm Mo from 5m below surface
Significant porphyry-style mineralisation:
• 224m @ 0.40% Cu, 0.05g/t Au, 0.90ppm Ag, 3.5ppm Mo from 242m, including: – 2m @ 1.01% Cu, 0.24g/t Au, 2.7ppm Ag, 9.5ppm Mo from 337m
– 103m @ 0.53% Cu, 0.05g/t Au, 1.4ppm Ag, 3.3ppm Mo from 363m
– 1m @ 5.25% Cu, 0.31g/t Au, 10.7g/t Ag, 1.5ppm Mo from 363m
– 12m @ 1.01% Cu, 0.07g/t Au, 2.2ppm Ag, 1.9ppm Mo from 363m
– 15m @ 1.19% Cu, 0.15g/t Au, 3.6ppm Ag, 1.9ppm Mo from 451m
– 3m @ 1.12% Cu, 0.14g/t Au, 4.8ppm Ag, 2.1ppm Mo from 631m
• Strongly mineralised interval in BTDD004 located at outer eastern part (Zone F) of the regional scale 1.5km x 1km soil copper anomaly that defines the Bottletree Prospect
• Remodelling of MIMDAS IP geophysical data highlights a 1 km-wide zone (Zone A) immediately west of 2021 drilling at moderate depth, interpreted as potential mineralisation associated with the core or cores of one or more buried porphyry intrusions
• New and potentially very large IP chargeability target also highlighted by remodelled IP, located 700m to the southeast of BTDD004 and is coincident with a high priority soil geochemistry target (Zone B) that is potentially a porphyry target
• A total of 6 high priority targets identified by interpretation of remodelled geophysics and multi-element soil data
• Multi-stage deep drilling program targeting potential porphyry core west of 2021 drilling and existing near-surface copper mineralisation on schedule to commence late next week
Superior Resources Limited (ASX:SPQ) (Superior, the Company) announced today strong assay results from the third deep diamond hole (BTDD004) completed during 2021 at its Bottletree Copper Prospect, located within the Company’s 100%-owned Greenvale Project, 210kms west of Townsville, Queensland.
The Company completed three deep diamond drill holes at Bottletree during 2021 (BTDD001, BTDD003 and BTDD004). Hole BTDD002 was terminated early because of excessive and irrecoverable azimuth deviation and was redrilled as BTDD003.
Hole BTDD004, drilled to 658.9m, was the third and last hole drilled at Bottletree during the 2021 field season and was designed to test the potential for porphyry copper-gold mineralisation on the western side of a large and intense MIMDAS induced polarisation (IP) chargeability anomaly. Recently received assays confirm that a very extensive zone of copper mineralisation was intersected over almost the entire length of the 658.9m hole. Core from BTDD004 shows variably mineralised quartz-chalcopyrite vein sets and disseminated chalcopyrite including a strongly mineralised 224m interval immediately to the west of the MIMDAS IP anomaly.
Although interpreted to be located some distance from the core of an intrusive porphyry system, the assays returned an impressive main copper zone of 224m @ 0.40% Cu, 0.05g/t Au, 0.9ppm Ag, 3.5ppm Mo (molybdenum) within an overall mineralised zone of 632m @ 0.21% Cu, 0.03g/t Au, 0.60ppm Ag, 18.0ppm Mo.
The results in BTDD004 add to the mineralisation reported earlier from hole BTDD001, collared 500m to the east, which returned an overall intersection of 552.6m @ 0.16% Cu, 0.02g/t Au, 0.7g/t Ag from 132m to the end of hole at 684.6m1.
BTDD004 has returned the best copper intersection so far at Bottletree and is considered to be indicative of better mineralisation towards the interpreted core of a central porphyry system, west of the 2021 MIMDAS IP anomaly.
Assays from the second completed hole, BTDD003, are also reported. BTDD003 targeted the most intense chargeability zone of the main IP anomaly and was drilled directly below and to the east of BTDD001. The results confirm that this part of the main IP anomaly lies outside and to the east of the mineralised porphyry-style zone, having only intersected one significant interval of mineralisation towards the bottom of the hole.
Superior’s Managing Director, Peter Hwang commented:
“The better-than-expected results returned from BTDD004 are impressive, particularly considering the mineralisation is thought to be some distance away from the interpreted porphyry core where higher grades are expected. To have intersected such a large interval of significant grade copper at this distal part of the interpreted system, provides us with further confidence that we are dealing with a very large-scale copper-gold system.
“The grades and the very large intersectional widths in hole 4 are similar to, or significantly better than those in many recent porphyry copper discoveries in South America, British Columbia and Australia.
“Importantly, the new MIMDAS model has highlighted an extensive one-kilometre-wide chargeability zone to the west of BTDD004, at the location of the interpreted porphyry core. Together with the new multi-element soil geochemistry data, we have now identified six compelling porphyry system targets at Bottletree.
“This year’s drilling program is on track to commence shortly with the first holes targeting the highest priority interpreted porphyry core, west of BTDD004. With two of three holes from last year’s program confirming very broad intervals of near-surface copper mineralisation, we will also be building on Bottletree’s near-surface, large tonnage potential.
“2022 promises to be an exciting year for Superior and we expect multiple catalysts from the activities and expected results ahead of us at Bottletree and our other copper and gold prospects.”