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Fly-through of the Kylylahti Project 

Fly-through of the Kuhmo Project

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Kuhmo - Peura-aho

The Peura-aho prospect is located approximately 6 kilometres north of Hietaharju and is related to a large scale anticline plunging steeply to the north-east. The sequence hosting the deposit comprises a footwall of porphyritic quartzo-feldspathic schist, a serpentinite unit and hangingwall mafic unit that includes narrow quartzo-feldspathic and carbonaceous schist horizons. The nickel-sulphide mineralisation occurs as disseminated sulphides within the serpentinite unit, and massive sulphides within the footwall quartzo-feldspathic schist.

Peura-aho area was discovered by prospector samples of massive nickel and copper sulphides in the early 1960`s. Outokumpu completed an exploration program in 1961-63 covering the area. This programme led to the discovery of Hietaharju and Peura-aho nickel-copper deposits.

A resource estimate completed by Outokumpu in 1970 quotes 164,000 tonnes at 0.52% nickel, 0.21% copper, 9.9% iron and 3.1% sulphur for the disseminated type of the deposit.

The massive sulphide deposit is exposed at surface as an east-west trending gossan over approximately 50 metres. Outokumpu’s resource estimate for this massive sulphide deposit was very modest, quoting 14,000 tonnes at 1.1% nickel and 0.37% copper based on a composite sample taken from the gossan by Outokumpu in 1970. A summary of significant intercepts from historic drilling at Peura-aho is presented in Table 1.

Table 1. Significant Intercepts in historic drilling at the Peura-aho Prospect

 

Table 2. Summary of Vulcan drilling results at Peura-aho

Peura-aho cross section including new holes SMS/PA-6, -7 and -14

 

Four samples from Peura-aho were submitted for NiS-FA full suite PGE analysis.

Table 3. Results of full suite PGE analysis by NiS-FA by Kuhmo (PA sample id`s) and Outokumpu (SMS- sample id`s).