Revolver Resources Holdings Limited (ASX:RRR) will ramp-up drilling at its Dianne Copper Project in North Queensland after new drilling and soil sampling results indicate the presence of clear surface anomalies overlapping the identified EM drill targets, all in close proximity to the existing Dianne deposit.
Two diamond holes (22DMDD18 and 22DMDDD19) over 1,141m targeted a EM target 200m beneath the High grade Massive sulphide Dianne deposit (Dianne Deeps). Both drill holes have intersected interpreted extensions of the massive sulphide horizon present at the project.
Revolver
“Initial drilling of the Dianne Deeps target is giving the first step-out look at the stratigraphy and clear evidence of the right VMS deposit environments beyond the Dianne deposit itself,” Managing Director, Pat Williams, said.
“We are seeing encouraging geological sequences and evidence of proximal massive sulphide occurrences distinct from that at the Dianne deposit, giving confidence to known clustering effects with VMS deposits.
“Importantly, we have identified the Dianne High Strain zone which identifies over 20 EM drill targets conducive to volcanic massive sulphide (VMS) hosted deposits and have secured a second diamond rig to accelerate the preliminary drill testing programme of these targets and we look forward to unlocking the true potential of the region.”
Dianne Deeps – Diamond Drill Holes 22DMDD18 and 22DMDDD19
The high priority Dianne Deeps target is based on the identification of a shallow electromagnetic conductor, located within 200m of the existing Dianne massive sulphide (VMS) mineralisation that has a response supporting the potential to reflect massive sulphide mineralisation. The target is positioned below, or on a south plunge, from Dianne within the same broader prospective stratigraphic and structural setting.
Encouragingly, both Diamond Drill Holes 22DMDD18 and 22DMDDD19 both intersected interpreted extensions of the massive sulphide horizon present at Dianne. This is represented as brecciated and recrystallized chert with minor pyrite mineralization within a broader sequence of shales interbedded with sandstone, and contemporaneous volcanics (multiple thin microdiorite sills and flows) confirming an extension of the prospective geology. Stratigraphically below this horizon, 22DMDD19 intersected sedimentary breccias/debris flows (conglomerates) with mineralised intraformational clasts of massive sulphide (pyrite-chalcopyrite-sphalerite), suggesting the potential presence of ‘proximal’ VMS horizon pre- Dianne massive sulphide lens.
Hole 22DMDDD19 was also surveyed with downhole EM (DHEM).
The conductive response identified in the various surface and airborne geophysical surveys have yet to be explained by the drilling to date. DHEM plate modelling from hole 22DMDDD19 is preliminary, however it has identified several subtle off-hole conductors. This high priority target remains untested with a view to now repositioning the next exploration hole in close proximity. A second downhole EM survey is planned for 22DMDD18 in an attempt to further refine the off-hole conductive responses.
Next Steps for Dianne
Further work outlined below is presently underway or planned in coming months.
• Continued drill testing of high priority regional targets,
• Completion of DHEM modelling and identification follow on drill targets,
• Laboratory assays of mineralised drill hole intersections,
• Delivery of metallurgy test work results and JORC MRE for known Dianne orebody.
For further information please visit: https://revolverresources.com.au/
