Mirasol Refines Priority Targets Based on Results from Preliminary Drill Program at Sobek Copper Project in Chile - Seite 2

Sobek Central – Advancing Maiden Drill Campaign

The first two drill holes at Sobek aimed to test the first of several high-priority targets but results were inconclusive as the program was halted before reaching the intended targets.

At Sobek Central, drill hole SB-DDH-001 was a structural target, testing for the source of the surface soil grid anomalies over and around the Central Breccia Zone, and also the source of the intensely phyllic altered porphyry clasts hosted within the breccia. The drill hole was stopped at a depth of 352m when it passed through a structural fault zone hosting strong calcite/gypsum stockworks. Follow-up drilling will aim to test the target from the opposite direction. Interpretation suggest that the structural source of the breccia may have flattened out resulting in the hole being drilled parallel and underneath the structure, or the structure may have pinched-out at depth within the fault zone.   

Also, at Sobek Central, drill hole SB-DDH-002 targeted the northern cusp of the massive northern-most MT anomaly. For safety reasons, drilling was halted at a depth of 586m before it reached the intended target. Based on the weak to moderate “green rock” peripheral propylitic style of alteration and the lack of consistent mineralization, the target has been refined and the drill collar will now be repositioned to start at a lower elevation to reach the center of the target more efficiently. The massive MT anomaly is elongated in a NW-SE direction and is 2km by 1km in size. The drill hole only reached the outer fringes of the target when it was halted. 3D line-based sections from the Mobile MT data are also currently being analyzed in detail to identify the best zones of this extensive target to be drill test.

Figure 2: Sobek Central - Large Mobile MT Anomalies and Refined Drill Targeting

Construction of the drill access road will resume early in Q4 2023. Once completed, there will be unrestricted access to all the targets at Sobek Central.

Airborne Mobile MT Geophysical Survey Outlines Several High-Priority Targets

Mirasol completed a 500-line km Airborne Mobile MT survey (75 sq.km) covering the entire Sobek Central area and a small area of Sobek North (13 sq.km) prior to demobilization of the MT system. The Airborne Mobile MT has high-definition depth penetration to greater than 800m depth below surface and has been proven effective in defining targets in high-sulfidation epithermal (HSE) and porphyry systems elsewhere in Chile. The survey has outlined a very striking cluster of MT anomalies and the interpretation suggests they may represent intrusive centers. The Central Breccia, and both the VN-Zone and VN-Zone North targets lie on the peripheral rims of these oval shaped MT responses.