The age of the ferropicritic volcanics and comagmatic Ni-bearing intrusions at Pechenga, Kola Peninsula, U.S.S.R. [PDF]
Bulletin of the Geological Society of Finland, 1990 Sm-Nd, Pb-Pb and U-Pb isotopic results are presented for samples from the Pilgujärvi Suite of the Pechenga Series. Whole rock samples and clinopyroxenes of ferropicritic volcanics yield a Sm-Nd isochron age of 1990 ± 66 Ma with εNd + 1.6 ± 0.4.
E. Hanski +3 more
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Svecofennian intra-orogenic gabbroic magmatism: A case study from Turku, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 2014 Using single-grain zircon U-Pb dating by LA-MC-ICPMS and whole-rock geochemistry, we have studied the Palaeoproterozoic gabbroic rocks from Moisio in southwest Finland. Three ages were obtained.
J. Nevalainen +4 more
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Pukala intrusion, its age and connection to hydrothermal alteration in Orivesi, southwestern Finland [PDF]
Bulletin of the Geological Society of Finland, 2005 The Pukala intrusion is situated in the Paleoproterozoic Svecofennian domain of the Fennoscandian Shield in the contact region between the Central Finland Granitoid Complex and the Tampere Belt.
M. Talikka, I. Mänttäri
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JAMA Network Open, 2021 Key Points Question What is the absolute risk of adverse obstetric outcomes stratified by in vitro fertilization (IVF), twin or singleton pregnancy, and maternal age? Findings In this cohort study of 16 879 728 pregnant women, the twin pregnancy rate was
Yuanyuan Wang +10 more
semanticscholar +1 more source
U-Th-Pb zircon geochronology on igneous rocks in the Toija and Salittu Formations, Orijärvi area, southwestern Finland: Constraints on the age of volcanism and metamorphism [PDF]
Bulletin of the Geological Society of Finland, 2008 Zircons from a felsic volcanic rock in the Toija Formation and a synvolcanic gabbro intrusion in the Salittu Formation within the Orijärvi area were dated by U-Th-Pb SIMS in order to provide depositional constraints on these formations.
M. Väisänen, C.L. Kirkland
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An ion microprobe U-Th-Pb study of zircon xenocrysts from the Lahtojoki kimberlite pipe, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 2001 Eleven relatively large (diameter 1–2 mm) zircon grains extracted from the Lahtojoki kimberlite pipe (Eastern Finland Kimberlite Province) have been analysed by the ion microprobe NORDSIM for their U- and Pb- isotopic composition.
P. Peltonen, I. Mänttäri
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Kakucs-Balla-domb. A Case Study in the Absolute and Relative Chronology of the Vatya Culture [PDF]
, 2013 The present study hopes to contribute to Middle Bronze Age studies in two specific areas: first, by publishing a new series of radiocarbon dates for a period from which there are few absolute dates, and second, by describing a less known area in the ...
Kulcsár, Gabriella +4 more
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Timing of Palaeoproterozoic crustal shearing in the central Fennoscandian Shield according to U-Pb data from associated granitoids, Finland [PDF]
Bulletin of the Geological Society of Finland, 2001 Granitoids in the Finnish part of the Fennoscandian Shield were created by numerous Archaean and Palaeoproterozoic tectonic events. Late phases of Palaeoproterozoic, Svecokarelian deformation created ductile, crustal-scale shear zones, of which the N-S ...
M. Vaasjoki, A. Kärki, K. Laajoki
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Reconstruction of the Dead (Grey) Dune evolution along the Curonian Spit, Southeastern Baltic [PDF]
Bulletin of the Geological Society of Finland, 2013 One of the unique places in Europe in both environmental and cultural terms is the Curonian Spit – a massive sandy barrier separating the Curonian Lagoon from the Baltic Sea. Straddling both the Lithuanian and the Russian parts, the spit is included into
N. Dobrotin +4 more
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The early Proterozoic Saari-Kiekki greenstone belt: A representative of the Sariola Group at Kuhmo, Eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1989 The early Proterozoic Saari-Kiekki greenstone belt in Kuhmo, eastern Finland, is the deformed remnant of a NW‒SE-trending elongate structural basin c. 15 km long and up to 3 km wide.
E.J. Luukkonen
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