2016
DOI: 10.1016/j.precamres.2015.12.002
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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?

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Cited by 9 publications
(2 citation statements)
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“…The uniformity of the inner structure of the Näränäkävaara basal dunite along a strike length of 30 km would only be expected in proximal conduit or large scale channel facies komatiite flows (Gole and Barnes 2020). The 2.79 Ga Kellojärvi ultramafic cumulate complex, located about 100 km south of Näränkävaara in the Kuhmo greenstone belt of the Suomussalmi-Kuhmo-Tipasjärvi greenstone complex, is the closest comparison of komatiitic origin to the basal dunite (Papunen et al 2009;Lehtonen et al 2016). The Kellojärvi complex is 3-5 km thick and primarily composed of metamorphosed olivine ortho-, meso-, and adcumulates with similar petrography as in Näränkävaara, with the exception of clinopyroxene being the primary pyroxene instead of orthopyroxene.…”
Section: Archean or Proterozoic Origin?mentioning
confidence: 99%
“…The uniformity of the inner structure of the Näränäkävaara basal dunite along a strike length of 30 km would only be expected in proximal conduit or large scale channel facies komatiite flows (Gole and Barnes 2020). The 2.79 Ga Kellojärvi ultramafic cumulate complex, located about 100 km south of Näränkävaara in the Kuhmo greenstone belt of the Suomussalmi-Kuhmo-Tipasjärvi greenstone complex, is the closest comparison of komatiitic origin to the basal dunite (Papunen et al 2009;Lehtonen et al 2016). The Kellojärvi complex is 3-5 km thick and primarily composed of metamorphosed olivine ortho-, meso-, and adcumulates with similar petrography as in Näränkävaara, with the exception of clinopyroxene being the primary pyroxene instead of orthopyroxene.…”
Section: Archean or Proterozoic Origin?mentioning
confidence: 99%
“…The Western Karelian sub-province consists of Meso-Neoarchean TTG, granitoids, greenstones and paragneisses complexes. Two age groups of greenstone complexes have been reported in the province 1) ca 2.94 Gaadakite-type felsic volcanogenic rocks (Luoma Group) and 2) 2.84-2.79 Ga -basalts-komatiites, Fe-basalts, felsic volcanite, BIF and sediments [Sorjonen-Ward and Luukkonen, 2005;Slabunov et al, 2006a, b;Huhma et al, 2012;Hölttä et al, 2012Hölttä et al, , 2014Lehtonen et al, 2016]. These complexes formed the Tipasjarvi, Kuhmo, Suomussalmi, Kostomuksha, Oijärvi and Kovero greenstone belts.…”
Section: Karelian Cratonmentioning
confidence: 99%