Finding gold with precise data

Mineral exploration company Mawson has surveyed gold deposits in the areas around the Arctic Circle for six years. The Canadian company’s main area of survey is the Rapalajoki gold prospect in Ylitornio, where gold seems to be distributed fairly evenly in the rock. Promising gold content has been found from drill samples taken from a depth of approximately 40 metres.

Another main location where Mawson conducts surveys is Rompas, where gold is found in rich, unconnected pockets. At approximately 100 square kilometres, the potential gold ore area of Rompas-Rajapalot is exceptionally vast.

Nick Cook, the Vice President of the company, hopes that they would find more gold than so far, so that they could start excavations of the deposits.

“We are still conducting early stage ore surveys,” Cook says.

The fact that Rompas is located in a Natura 2000 area has caused even more additional work.

From a hint of uranium to gold prospect

Before Mawson, GTK looked for uranium in the area with the industrial group Areva, but the amounts discovered were too small to open a profitable mine. However, fairly good indications of gold were found in the area. The situation was interesting for researchers from an ore geology point of view because uranium and gold rarely occur so close together.

Mawson has utilised GTK’s specialists, geological, geophysical and geochemical material as well as the drill core archive extensively in mineral exploration work. Knowledge of glacial geology has been useful when interpreting soil chemistry or ore boulder movement, because the glacier must have flowed in two directions.

Vice president Nick Cook thanks Finnish technology and competence.

“GTK’s researchers can be called diligent scientists,” Cook explains.

Mawson is also participating in a joint project of GTK and the University of Lapland to test the latest mineral exploration tool: an unmanned drone.