Lukkulaisvaara ultrabasic Massif (Lukkulaisvaara pluton; Lukkulaisvaara layered intrusion), Olanga (Oulanka) River, Oulanka plutonic complex, Northern Karelia, Karelia Republic, Northern Region, Russia

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This intrusion, located in the northern Karelia area, and dated at 2442 ± 1.9 Ma, belongs to the Oulanka plutonic group. The intrusion cuts rocks of the Archean granite-migmatite-gneiss basement and is disconformably overlain by Proterozoic metavolcanic rocks. It is a layered body not exceeding 4,600 meters in thickness.

The layered body shows various kinds of cumulates, peridotites, gabbronorites, norites, anorthosites, pyroxenites, etc.

A pegmatoidal plagioclase-bearing meta-pyroxenite, hosted by a sill of microgabbronorite, is mineralized with Cu/Ni sulphides (pods and stringers, opx-interstitial or included in enstatite), PGE minerals, Ag-Au alloys, hessite, Re-rich molybdenite and tarkianite.

References

- Grokhovskaya, T.L., Distler, V.V., Klyunin, S.F., Zakharov, A.A., Laputina, I.P. (1992) Low-sulfide platinum group mineralization of the Lukkulaisvaara pluton, Northern Karelia. International Geology Review: 34: 503-520.
- Barkov, A.Yu. and Lednev, A.I. (1993) A rhenium-molybdenum-copper sulfide from the Lukkulaisvaara layered intrusion, Northern Karelia, Russia. European Journal of Mineralogy: 5: 1227-1233.
- Barov, A.Yu., Pakhmovskii, Y.A., and Men'shikov, Y.P. (1995) Zoming in the platinum-group sulfide minerals from the Lukkulaisvaara and Imandrovsky layered intrusions, Russia. Neues Jahrbuch für Mineralogie, Abhandlungen: 169: 97-117.
- Barkov, A.Yu., Men'shikov, Y.P., Begizov, V.D., Lednev, A.I. (1996) Oulankaite, a new platinum-group mineral from the Lukkulaisvaara layered intrusion, Northern Karelia, Russia. European Journal of Mineralogy: 8: 311-316.
- Glebovitsky, V.A., Semenov, V.S., Belyatsky, B.V., Koptev-Dvornikov, E.V., Pchelintseva, N.F., Kireev, B.S., and Koltsov, A.B. (2001) The Structure of the Lukkulaisvaara intrusion, Oulanka group, northern Karelia: petrological implications. Canadian Mineralogist: 39(2): 607-637.
- Barkov, A.Y., Fleet, M.E., Martin, R.F., and Tarkian, M. (2004) Compositional variations of oulankaite and a new series of argentian oulankaite from the Lukkulaisvaara layered intrusion, northern Russian Karelia. Canadian Mineralogist: 42: 439-453.
- Semenov, S.V., Glebovitsky, V.A., Kol’tsov, A.B., Semenov, V.S., Korneev, S.I., and Savatenkov, V.M. (2008): Metasomatic Processes in the Lukkulaisvaara Layered Intrusion, Russia, and Formation of Low-Sulfide PGE Mineralization. Geology of Ore Deposits 50(4), 249-274.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Actinolite Albite Almandine Anorthite var: Bytownite var: Labradorite Anthophyllite Argentopentlandite Atokite Augite Baddeleyite Biotite Bornite Braggite Calcite Chalcocite Chalcopyrite Chamosite var: Daphnite var: Thuringite Chlorapatite Clinochlore var: Ripidolite

Clinochlore var: Sheridanite Clinozoisite Cobaltite Corundum Covellite Enstatite Epidote Galena Gersdorffite Gold var: Electrum Hematite Hessite Hollingworthite Ilmenite Irarsite Keithconnite Kotulskite Linnaeite Magnetite Menshikovite

Merenskyite 'Mertieite' Michenerite Millerite Molybdenite Moncheite Muscovite var: Sericite Oulankaite (TL) var: Argentian Oulankaite Paolovite Pargasite Pentlandite Prehnite 'Pumpellyite' Pyrite Pyrrhotite Quartz Rustenburgite Rutile 'Scapolite'

Sobolevskite Sopcheite Sperrylite Sphalerite Staurolite Stibiopalladinite Taimyrite Talc Tarkianite Telargpalite Telluropalladinite Titanite 'Tourmaline' Tremolite Tschermakite Tulameenite 'Unnamed (Cl-analogue of Ferropargasite)' 'Unnamed (Pd-Ag Telluride)' Violarite Zircon Zvyagintsevite

87 entries listed. 68 valid minerals. 1 type locality (valid mineral).

Localities in this Region

Russia Northern Region Karelia Republic Northern Karelia Oulanka plutonic complex Olanga (Oulanka) River Lukkulaisvaara ultrabasic Massif (Lukkulaisvaara pluton; Lukkulaisvaara layered intrusion) Vostok deposit