LIBERO COPPER ANNOUNCES DETAILS OF ONGOING 14,000-METRE EXPLORATION PROGRAM AT THE MOCOA PORPHYRY COPPER-MOLYBDENUM DEPOSIT
Highlights
- Significant Resource Expansion Potential with 14,000 Metres of Drilling: This program increases the total historical drilling at Mocoa by nearly 50%, with a focus on infill and step-out drilling. Targeted zones aim to expand high-grade copper (Cu) and molybdenum (Mo) areas, designed at enhancing the understanding of the overall resource potential.
- Exploration of New Target Areas: This program targets new prospective areas—including Silencio, Neblina, and Piedralisa—where initial soil anomalies indicate promising mineralization. Extensive groundwork is underway to refine these areas for potential discoveries.
- Strategic Growth Based on Comprehensive Analysis: This 14,000-metre program builds on two years of extensive groundwork, including re-logging, geological modelling, geophysical analysis, and geochemistry of soils and rocks. Designed to address key questions around Mocoa's potential, the program reflects a systematic approach to understanding and expanding the resource's scale.
"This program, adding 50% more drilling than all previous work at Mocoa, is a major step forward for the project," said
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14,000-metre Drill Plan
The 14,000-metre drill program at the Mocoa project (see Table 1) is designed to refine the understanding of high-grade copper and molybdenum distribution while potentially expanding the resource through targeted infill and step-out drilling. This comprehensive program not only aims to deepen insights into the deposit's high-grade cores but also extends to newly identified areas with significant resource potential, such as Piedralisa and Neblina.
In parallel, the program will follow up on Cu-Mo-Zn-Pb soil anomalies at Silencio, Neblina, and Piedralisa. These high-priority targets were identified through extensive fieldwork and recent airborne geophysical surveys, underscoring the potential for additional mineralization outside the known deposit area. (refer to the new releases
This multi-purpose exploration strategy integrates drilling on the back of extensive geologic, geophysical, and geochemical groundwork, reflecting
Expansion of the Mocoa system
At Mocoa, 25,198 metres of drilling have been completed along a north-south strike length of over 1,000 metres, spanning a west-east distance of 600 metres, and reaching a depth of 900 metres. This historical drilling has intercepted high-grade copper and molybdenum cores, though with wide drill spacing. The in-fill drilling (see Table 1) is designed to refine the understanding the Cu and Mo grade distribution in areas of wide-space drilling, and to test the deeper sections of the porphyry system below the existing pit-constrained initial Inferred mineral resource estimate1 at Mocoa. A detailed review of available drill cores and the interpretation of high-grade Cu-Mo distribution indicate that the Mocoa deposit remains open for potential expansion in all directions. The proposed drill holes are strategically targeted to extend and confirm historically identified high-grade zones.
Step-out drilling (table 1) is planned to strategically extend the overall mineral resource of the Mocoa project to the north and northeast, aligning with the identified plunge of the high-grade cores. This targeted drilling approach aims to explore and define additional mineralization that may exist beyond the current resource boundaries, offering the potential to increase the size and grade of the Mocoa deposit.
Additionally, existing drill pads will be utilized to minimize surface disturbance and preserve the surrounding environment. This approach not only reduces the environmental impact of drilling operations but also streamlines the logistical aspects of the drilling program. Furthermore, the project has implemented a comprehensive rainwater collection system that secures water use for drilling, consumption, and sanitation purposes. This innovative system eliminates dependence on external water sources, enhancing the sustainability of the operation while ensuring a reliable supply of water throughout the drilling process. By integrating these practices, the project demonstrates a commitment to environmental stewardship and resource efficiency.
Drill hole |
Easting |
Northing |
Elevation |
Target depth (m) |
Azimuth |
Dip |
MD-044* |
313831 |
137655 |
1673 |
1,200 |
0 |
-60 |
MD-045 |
313831 |
137655 |
1673 |
1,000 |
80 |
-75 |
MD-046 |
314014 |
137980 |
1720 |
1,000 |
170 |
-80 |
MD-047 |
314014 |
137980 |
1720 |
1,000 |
80 |
-75 |
MD-048 |
314014 |
137980 |
1720 |
1,000 |
340 |
-80 |
MD-049 |
313768 |
138123 |
1899 |
1,000 |
80 |
-75 |
MD-050 |
313852 |
138238 |
1937 |
1,000 |
0 |
-90 |
MD-051 |
313852 |
138238 |
1937 |
1,000 |
50 |
-70 |
MD-052 |
313988 |
138543 |
2080 |
1,000 |
160 |
-80 |
MD-053 |
313988 |
138543 |
2080 |
1,000 |
120 |
-70 |
MD-054 |
314562 |
137899 |
1725 |
1,000 |
315 |
-75 |
MD-055 |
314328 |
139301 |
2220 |
1,000 |
60 |
-60 |
MD-056 |
314328 |
139301 |
2220 |
900 |
160 |
-60 |
MD-057 |
314328 |
139301 |
2220 |
900 |
0 |
-90 |
Table 1 - Collar and designed information of the 14,000 metres drill plan. Coordinates are UTM system, zone 18N and WGS84 projection. * Currently being drilled
MD-044 Update
Hole MD-044 is the first hole in the 14,000-metre drill program at the Mocoa deposit. As of
Detailed Anaconda logging reveals that argillic alteration and iron oxides (after D-type veinlets) dominate the initial 100 metres, with sericite present throughout, overprinting earlier potassic alteration characterized by A-type (truncated) and potassium feldspar (K-feldspar) veinlets. Late D-type veinlets, partially or completely altered to iron oxides, are frequently observed within this interval. Copper mineralization appears as quartz veinlets containing chalcopyrite, chalcocite, and minor bornite, while molybdenum mineralization is present as molybdenite within B-type veinlets cross-cutting the earlier A-type and K-spar veinlets.
Surface E xploration
Exploration work completed up to date (refer to new releases
-
Neblina zone (formerly target 8 and 6) is a prospective area located to the north-northeast of Mocoa deposits. This area has two zones of prospection interest named: west and east Neblina respectively. Neblina West is located 2km to the north of Mocoa deposit and is associated with a 3D radial symmetric isosurface intrusion (interpreted as porphyries bodies), analytical signal magnetics (AS) highs and demagnetized zone. Neblina East is located 3km to the northeast of Mocoa deposit and is associated with a 3D radial symmetric isosurface intrusion (interpreted as porphyries bodies) with locally elevated Mo rock values.
-
Piedralisa zone (formerly target 5) is a priority target, located 3km to the southeast of the Mocoa deposit, where previously was identified and mapped leached cap outcrops consistent with leached cap related to the upper portion of the Mocoa deposit (refer to news release
February 7, 2023 ). Furthermore, Piedralisa zone is associated 3D radial symmetric isosurface intrusion (porphyry) with large 2,500 metres x 1,500 metres Zn-Pb±Cu soil anomaly and elevated Cu-Mo values in rock samples (refer to the new releasesMay 03, 2022 ,November 15, 2022 andFebruary 7, 2023 ). -
Silencio (formerly target 7) zone is located 3km to the north of the Mocoa deposit and is related to AS highs, 3D radial symmetric isosurface intrusions (interpreted as porphyries bodies) with moderate K-alteration index and locally elevated Cu values. 200 metres x 50-metre space soil grid is planned to cover this area to extend the Cu soil anomaly previously identified (refer to the news release
February 7, 2023 ).
Qualified Person and Technical Notes
Copper equivalent (CuEq) for drill hole interceptions is calculated as: CuEq (%) = Cu (%) + 3.33 × Mo (%), utilizing metal prices of Cu -
Mineralized zones at Mocoa are bulk porphyry-style zones and drilled widths are interpreted to be very close to true widths.
About the Mocoa Porphyry Copper-Molybdenum Deposit
The Mocoa deposit is located in the department of Putumayo, 10 kilometres from the town of Mocoa.
The Mocoa deposit appears to be open in both directions along strike and at depth. Current work on the property has identified additional porphyry targets including the possible expansion of known mineralization. The Mocoa deposit is situated in the Central Cordillera of
For further information refer to National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101") Technical Report, entitled "Technical Report on the
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