Revolver Resources reports latest round of drilling enhances VMS potential of Dianne copper deposit
Revolver Resources (ASX: RRR) has confirmed the volcanogenic massive sulphide (VMS) potential of its flagship Dianne copper deposit in northern Queensland has been enhanced by drilling at the Larramore prospect.
Initial exploration at the C3 target within the Larramore discovery hole has intersected more than nine metres of intense classic VMS stockwork mineralisation across several downhole intervals.
Pervasive sulphide mineralisation was observed across more than 260m of the 290m drillhole length, and is associated with weakly-mineralised stockwork veining and disseminated copper-gold mineralisation with several narrow zones of strong sulphides (containing pyrite-pyrrhotite-chalcopyrite-sphalerite).
Assays showed regular copper-gold mineralisation in the heavily-altered volcanic host rock, providing Revolver with “clear indication” of a large-scale hydrothermal system.
Best results included: 0.96m at 0.12 grams per tonne gold and 212 parts per million copper and 4.21% manganese from up to 113.83m; 0.83m at 0.11% copper from up to 264.03m; and 0.82m at 0.32g/t gold and 553ppm copper from up to 264.85m.
Downhole electromagnetic (EM) survey work identified a strong offhole conductor which is now a priority follow-up drill target.
A high-resolution airborne EM survey completed in late-2022 and comprising 307 line-kilometres across the Larramore volcanic belt identified 15 similar high-priority bedrock anomaly targets.
Substantial body of evidence
Revolver managing director Pat Williams said exploration is building a “substantial body of evidence” for the presence of a large-scale VMS system in the western part of the Dianne project.
“The results from the discovery hole at C3, including pervasive sulphide mineralisation combined with the presence of a strong proximate off-hole conductor, are exciting,” he said.
“Perhaps even more compelling is the fact that C3 and C14 are not even our most prospective targets at Larramore, rather simply the ones we were able to access earlier during the wet season… we are eager to get started on the next round of drilling both to follow-up at C3 and pursue this highly-prospective broader target suite.”
Mr Williams said the targets will be the subject of a 2,000m diamond drilling program scheduled to commence in May.