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Halkoaho Tapio
Senior Scientist
Mineral Economy Solutions
Ore Geology and Mineral Systems
Availability of Critical Raw Materials​
+358295033518, +358405801309
Kuopio

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Areas of expertise:

FIELDS OF RESEARCH: Greenstone belts, komatiitic volcanism and komatiitic Ni±Cu(±PGE) deposits. Mafic to ultramafic (layered) intrusions and related ore deposits (especially Ni-Cu-PGE deposits) and PGE-minerals. Expert in the field of the paleovolcanology, stratigraphy and komatiitic nickel deposits of Archean greenstone belts in Eastern and Northern Finland, and also the mafic to ultramafic layered intrusions, their geology, stratigraphy and Ni-Cu-PGE deposits exploration in the Fennoscandian shield. Associate professor in the University of Helsinki and University of Turku.

Projects and publications:

The basal dunite of the Precambrian mafic-ultramafic Näränkävaara intrusion: Petrogenetic considerations and implications to exploration

Petrography, geochemistry, and geochronology of the Sc-enriched Kiviniemi ferrodiorite intrusion, eastern Finland

Parental magma, magmatic stratigraphy, and reef-type PGE enrichment of the 2.44-Ga mafic-ultramafic Näränkävaara layered intrusion, Northern Finland

The Penikat Intrusion, Finland: Geochemistry, Geochronology, and Origin of Platinum– Palladium Reefs

Ni-(Cu-PGE) deposits in Finland – Geology and exploration potential

U–Pb geochronology of Archaean volcanic-sedimentary sequences in the Kuhmo greenstone belt, Karelia Province – Multiphase volcanism from Meso- to Neoarchaean and a Neoarchaean depositional basin?

Laflammeite, Pd3Pb2S2, a new platinum-group mineral species from the Penikat layered complex, Finland. Can. Miner. 40: 671-678.

Exceptionally Cr-rich basalts in the komatiitic volcanic association of the Archaean Kuhmo greenstone belt, eastern Finland. Miner. Petrol. 70: 105-120.

The Ala-Penikka PGE Reefs in the Penikat layered intrusion, Northern Finland. Miner. Petrol. 42: 23-38.

The Sompujärvi PGE Reef in the Penikat layered intrusion, Northern Finland. Miner. Petrol. 42: 39-55.