Revealing the Invisible: Hydrogeochemistry Applied to Deep Exploration in Matagami

In Matagami, Nuvau Minerals benefits from an exceptionally large land position and a unique historical data heritage: more than 8,000 drillholes, many of which remain accessible today.

Our objective is simple: make full use of this legacy and explore beyond the reach of traditional methods, mapping, drilling, geochemistry, and geophysics, while applying techniques adapted to deep exploration.

🔍 Why Hydrogeochemistry?

This method captures the metal signatures transported by groundwater and identifies geochemical halos that remain invisible at surface.

Nuvau partnered with Orflow Geosciences to test this approach in Matagami, at the heart of the Canadian Shield.

🧭 Calibrating the Signal, Removing the Noise

Thanks to the Deep Abitibi Groundwater database developed by CONSOREM in Québec, hydrogeochemical profiles can now distinguish natural background levels from true metal anomalies. In addition, CONSOREM’s work on Daniel 25 and PD1 has shown that groundwater in the camp contains coherent metal halos, notably in zinc.

Zinc concentrations (and associated metals) display values typical of proximal halos to volcanic massive sulphide (VMS) systems.

These values outline a ~500 × 500 m halo, spatially independent from the main McLeod deposit and located in an untested area.

The second sector shows no significant anomalies, confirming both the sensitivity and the robustness of the method.