全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:P. Nikkola , I. Mänttäri , O.T. Rämö
来源:[J].Bulletin of the Geological Society of Finland(IF 0.786), 2017, Vol.89 (1), pp.20-34DOAJ
摘要:The Salittu Formation is one of the few metavolcanic successions in the U-Pb zircon single grain dating using the LA-MC-ICP-MS technique was utilized to determine the age of the host rocks of the Juomasuo Au-Co-Cu deposit located in the late Archean Kuusamo supracrustal belt. Eve...
作者:M. Nironen , I. Mänttäri , M. Väisänen
来源:[J].Bulletin of the Geological Society of Finland(IF 0.786), 2016, Vol.88 (2), pp.85-103DOAJ
摘要:Because of the relatively low metamorphic grade, low strain and well-preserved early structures in volcanic and volcaniclastic rocks, the Orijärvi triangle (in the center of the larger Orijärvi area) is one of the few locations in the Svecofennian orogen of southern Finland ...
作者:I. Mänttäri , M. Kurhila ...
来源:[J].Bulletin of the Geological Society of Finland(IF 0.786), 2016, Vol.88 (1), pp.5-20DOAJ
摘要:The Vaasa batholith, western Finland, is a large, peraluminous granitoid pluton that crystallized at 1.88–1.87 Ga during the culmination of the Svecofennian orogeny. The batholith has gradual contacts, through metatexites and diatexites, with the enveloping metasedimentary r...
作者:I. Mänttäri , G. Sakellaris
来源:[J].Precambrian Research(IF 4.441), 2017, Vol.289, pp.48-61Elsevier
摘要:Abstract(#br)In this paper we present new U-Pb data on zircon and titanite from the host rocks of the Pampalo gold deposit located within the Neoarchaean Hattu schist belt in eastern Finland. We also present new U-Pb data on nearby plutonic rocks. Plagioclase porphyries at t...
作者:... T. Veikkolainen , S. Mertanen , I. Mänttäri
来源:[J].Precambrian Research(IF 4.441), 2017, Vol.288, pp.1-22Elsevier
摘要:Abstract(#br)Baltica represents one of the key continents of the Mesoproterozoic supercontinent Nuna forming the core of it together with Laurentia and Siberia. This study presents new geochronological and paleomagnetic data obtained for the Häme diabase dyke swarm in southe...
作者:I. Mänttäri , C. Nyakecho
来源:[J].Journal of African Earth Sciences(IF 1.229), 2016, Vol.117, pp.303-330Elsevier
摘要:Abstract(#br)The Aswa Shear Zone (ASZ) is a major NW–SE trending structure of over 1000 km length in East Africa. In Uganda, the ASZ is a steeply NE-dipping, up to 11 km wide mylonitic shear zone that shows multiple stage brittle reactivation. On outcrop-scale, the fabric in...
作者:... L.J. Pesonen , I. Mänttäri , J.S. Heinonen
来源:[J].Precambrian Research(IF 4.441), 2016, Vol.286, pp.379-397Elsevier
摘要:Abstract(#br)We present an updated paleomagnetic pole and a new isotope age for the late Paleoproterozoic (Svecofennian) diabase dykes from Keuruu, Central Finland. The paleomagnetic results reveal a dual-polarity remanent magnetization with asymmetry, which we explain by an...

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