Ari Sussman, Executive Chairman commented: “Inspection of drill core and underground sampling at the Olympus target point to the potential for a mineralized porphyry system at depth. It is entirely conceivable that below Olympus we might find the Apollo porphyry system’s down plunge extension or another porphyry intrusion altogether. This model is directly comparable to the Marmato mine located less than 4 kilometres away and along the same mountain slope. Marmato hosts a CBM vein system similar to Olympus, which lies atop a porphyry at depth. We are truly blessed with remarkable geology. Hydrothermal fluid systems this robust in both nature and scale are exceedingly rare globally.”
Collective Mining Ltd. (TSX-V: CNL) (OTCQX: CNLMF) is pleased to announce assay results from three underground drill holes completed at the Olympus target which forms part of the Company’s Guayabales project located in Caldas, Colombia. Mineralization at Olympus is characterized by zones of sheeted, late-stage carbonate base metal veins and veinlets impregnating either porphyry diorite host rock or schist host rock. The Olympus target area measures 600 metres north-south by 400 metres east-west. Previously, the Company announced drilling results from drilling in the northern portion of the Olympus target area which included discovery hole OLCC-3 which averaged 301.9 metres @ 1.11 g/t AuEq (see press release dated March 15, 2022).
Details (See Table 1 and Figures 1 and 2)
Assay results for underground drill holes OLCU-1 to OLCU-3 are announced in this press release. All three holes were drilled from an underground chamber constructed within shallow ancestral underground workings located approximately 280 metres to the west and northwest of the current known northern extent of the Apollo porphyry deposit.
Assay results and geological observations are summarized below.
OLCU-2 was drilled northeastwards at a shallow dip below old workings from the underground chamber to a maximum depth of 331.8 metres. The hole was drilled orthogonally to CBM veins mapped in higher levels within the historical workings. The hole intersected two zones of polymetallic CBM veins and veinlets returning the following results:
Both mineralized zones consist of multiple polymetallic CBM veins and veinlets hosting pyrite, sphalerite, chalcopyrite, and galena. The sheeted vein systems are associated with intense sericite alteration and overprint older, potassic altered porphyry diorites containing magnetite and quartz-sulphide, porphyry veins.
Drill hole OLCU-3 was drilled in a NNE direction at a shallow dip from the underground chamber to a final depth of 290.2 metres and intersected a CBM vein zone with similar characteristics to those described in OLCU-2 and grading 0.81 g/t gold equivalent over 17.45 metres. The CBM zone is associated with intense sericite alteration and this mineralized system overprints potassically altered, porphyry diorite.
Hole OLCU-1 failed to intersect the targeted CBM zone due to drilling problems related to faulting and a historical mining cavity.
The current underground drilling and previously reported Olympus drill results (all summarized in Figure 1) outline multiple CBM vein zones covering an area of 600 metres north-south by- 400 metres east-west which is open to the NW and SE as the vein systems strike in this direction.
The CBM vein intercepts in OLCU-2 are located only 280 metres to the northwest of the known extent of Apollo porphyry system mineralization intercepted in step out drill hole APC-17. Drill hole APC-17 was an important step out hole which significantly extended the size of the Apollo deposit northwards returning a long intercept of 547.65 metres @ 1.03 g/t gold equivalent (see press release date November 29, 2022). This hole was terminated at 912.8 metres due to rig capacity limitations and bottomed in strong mineralization with the final 2.75 metres averaging 1.56 g/t gold and 9 g/t silver.
Interpretation work undertaken by the Company’s geological team has, to date, identified three zones of sheeted CBM vein systems which overprint both the inter-mineral breccia within the Apollo porphyry system and then continue to the northwest through the Olympus system. Additionally, porphyry style mineralization has been observed throughout Olympus drill core and underground mapping. As a result, it is entirely possible that the inter-mineral breccia making up the Apollo porphyry system (which plunges to depth as the system is traced northwards) or another porphyry intrusion might lie below the Olympus vein system. This model is directly analogous to the Marmato mine located approximately three kilometres along strike to the southeast where a CBM vein system lies above a porphyry system (Marmato Deeps).
Table 1: Assays Results for holes OLCU-1 to OLCU-3
|Hole #||From (m)||To (m)||Intercept
|Au (g/t)||Ag (g/t)||Cu %||Mo %||AuEq
*AuEq (g/t) is calculated as follows: (Au (g/t) x 0.95) + (Ag g/t x 0.016 x 0.95) + (Cu (%) x 1.83 x 0.95)+ (Mo (%)*9.14 x 0.95) and CuEq (%) is calculated as follows: (Cu (%) x 0.95) + (Au (g/t) x 0.51 x 0.95) + (Ag (g/t) x 0.01 x 0.95)+ (Mo(%)x 3.75 x 0.95) utilizing metal prices of Cu – US$4.00/lb, Ag – $24/oz Mo US$20.00/lb and Au – US$1,500/oz and recovery rates of 95% for Au, Ag, Mo and Cu. Recovery rate assumptions are speculative as no metallurgical work has been completed to date. No top cut has been applied.
Reconnaissance drilling south of the Apollo porphyry system: Two drill holes (APC-32 and APC-34) were completed to test a surface soil anomaly for copper which is located 150 metres south of the southern limit of the currently defined Apollo porphyry system. The holes were collared from a newly constructed Pad 8 and drilled steeply northwards and westwards respectively, below the soil anomaly. Both holes intersected potassically altered porphyry diorites with low density of quartz-molybdenum-pyrite-pyrrhotite-chalcopyrite veins. Neither hole returned significant precious or base metal values. The Exploration team are using the trace element data to understand the location of these holes and their alteration patterns in comparison with the Apollo porphyry system.
About Collective Mining Ltd.
To see our latest corporate presentation and related information, please visit www.collectivemining.com
Founded by the team that developed and sold Continental Gold Inc. to Zijin Mining for approximately $2 billion in enterprise value, Collective Mining is a copper, silver and gold exploration company with projects in Caldas, Colombia. The Company has options to acquire 100% interests in two projects located directly within an established mining camp with ten fully permitted and operating mines.
The Company’s flagship project, Guayabales, is anchored by the Apollo target, which hosts the large-scale, bulk-tonnage and high-grade copper-silver-gold Apollo porphyry system. The Company’s near-term objective is to drill the shallow portion of the porphyry system while continuing to expansion the overall dimensions of the system, which remains open in all directions.
Management and insiders own nearly 52% of the outstanding shares of the Company and as a result, are fully aligned with shareholders.
Qualified Person and NI43-101 Disclosure
David J Reading is the designated Qualified Person for this news release within the meaning of National Instrument 43-101 and has reviewed and verified that the technical information contained herein is accurate and approves of the written disclosure of same. Mr. Reading has an MSc in Economic Geology and is a Fellow of the Institute of Materials, Minerals and Mining and of the Society of Economic Geology (SEG).
Rock and core samples have been prepared and analyzed at SGS laboratory facilities in Medellin, Colombia and Lima, Peru. Blanks, duplicates, and certified reference standards are inserted into the sample stream to monitor laboratory performance. Crush rejects and pulps are kept and stored in a secured storage facility for future assay verification. No capping has been applied to sample composites. The Company utilizes a rigorous, industry-standard QA/QC program.
First Phosphate Corp. (CSE: PHOS) (OTC: FRSPF) (FSE: KD0) is plea... READ MORE
New Found Gold Corp. (TSX-V: NFG) (NYSE-A: NFGC) is pleased to ... READ MORE
Highlights: Drilling at the new West Goodspeed target has inter... READ MORE
Goliath Resources Limited (TSX-V: GOT) (OTCQB: GOTRF) (FSE: B4IF)... READ MORE
enCore Energy Corp. (NYSE American: EU) (TSXV: EU) is pleased to... READ MORE