- Phase 2 Bottletree drilling program recently commenced with high-capacity diamond core drill rig
- Planned program comprises a total of 10 diamond core holes ranging from 350m to 500m total depths for a total of 4,250 metres
- Targeting a central interpreted intrusion centre of the large-scale Cu-Au-Mo porphyry alteration system discovered during the 2022 program and strike extensions to wall rock porphyry zone associated with the Discovery Outcrop area
- Specific program objectives:
o Vector towards a porphyry core by targeting an interpreted intrusion centre 400 metres south of 2022 east-west line of drilling, considered likely to be a source of extensive copper and molybdenite mineralisation
o Test for wall rock porphyry deposit potential by investigating the extent of wall rock Cu- Au-Mo mineralisation extending from surface and remaining open at 850m depth as identified during 2022 drilling
o Test for a previously untested second potential wall rock porphyry zone to the southwest
• First hole (BTDD011) progressing well with familiar “Bottletree-style” wall rock chalcopyrite mineralisation in shallower parts of the hole drilled to date
Superior Resources Limited (ASX:SPQ) (Superior, the Company) confirms the commencement of a Phase 2 drilling program at the Company’s flagship Bottletree Porphyry Cu-Au-Mo Project at its 100%-owned Greenvale Project, 210kms west of Townsville, Queensland.
Drilling of a 2km x 2.5km soil copper anomaly during 2021 and 2022 resulted in the discovery of a large-scale copper mineralisation system with substantial molybdenum, which is associated with a large porphyry-style alteration system. The key hole that intersected a distal wall rock zone of mineralisation returned:
• 632m @ 0.21% Cu, 0.03g/t Au, 0.60ppm Ag, 18.0ppm Mo from 5m below surface (BTDD004) (refer ASX announcement dated 2 June 2022), including:
o 224m @ 0.40% Cu, 0.05g/t Au, 0.90ppm Ag, 3.5ppm Mo from 242m.
Spectacularly high-grade molybdenum mineralisation with up to 5.2% Mo (BTDD010, 1m assay) was also intersected during 2022, which appears to be associated with late-stage tonalite porphyry intrusion (refer ASX announcement dated 12 April 2023).
The mineralisation identified to date is considered to be wall rock porphyry mineralisation located on the margins of the porphyry system. This 2023 program is targeting one of the interpreted porphyry intrusion centres, or a central potassic core of the system.
Superior’s Managing Director, Peter Hwang commented:
“We are naturally, very excited to see the rig turning again at Bottletree and we have a program that takes us to the south of last year’s line of holes to target a high priority interpreted central porphyry core.
“In addition, we will also be defining the strike-extent of the significant wall rock mineralisation zone that extends from surface at the Discovery Outcrop to at least 850 metres down-dip depth with a thickness of at least 250 metres. With the zone open at depth and along strike, this represents a potentially sizeable wall rock copper deposit in its own right.
“The wall rock mineralised zone, including a potential second wall rock zone located along the south western boundary of the prospect, would separately lead to one or more source porphyry intrusion centres. However, under the current program we aim to test the wall rock zones that lie above 500 metres depth.
“Current reports from site are that the rig is progressing at a fast pace with the first hole, BTDD011, producing wall rock mineralisation that is characteristic of the Bottletree system. We will provide an update on the first hole when further and more complete information is available.”
Read the announcement via this link