RE: OMI - El Pantano in Argentina31 Oct 2025 07:14
El Pantano Geology confirmation ahead... (A brief description of 'good signs' confirming geology prior to hitting any gold grades).
In epithermal drilling like this, geologists generally on real-time visual and logging observations as proxies for potential high-grade intercepts. Positive indicators at El Pantano would include:
Lithology Confirmation: Intersecting unaltered or variably altered Jurassic volcanics (e.g., tuffaceous or ignimbritic textures) beneath basalt cover, confirming the target horizon.
Alteration Halo: Early encounters with silicified (massive quartz replacement) or vuggy silica zones, often >10–20 m thick, signaling proximity to a mineralized center—these are common "leakage" halos around Deseado veins.
Vein Textures: Visible quartz vein swarms or stockworks (networks of thin veinlets), especially if brecciated or banded, with sulfides like pyrite or arsenopyrite. Even low vein density (1–5%) is encouraging if in a structural corridor.
Structural Features: Fault gouge, shearing, or dilation zones along the drill path, particularly if aligned with the SE-NW trend, as these control fluid pathways.
Pathfinder Minerals: Flecks of visible sulfides (e.g., arsenopyrite for As association) or subtle base-metal staining (Cu, Ag), though these are less reliable visually than alteration/veins.
These signs are drawn from the project's epithermal model, where silicification and veins often precede bonanza-grade shoots (e.g., >10 g/t Au). If multiple holes hit these features over a 1–2 km strike, it would de-risk follow-up drilling toward a resource estimate.
But of course, this is exploration... and we might get lucky hitting gold veins at any point in this 3000m campaign.