Timing of Svecofennian crustal growth and collisional tectonics in Åland, SW Finland [PDF]
Bulletin of the Geological Society of Finland, 2004 In an effort to quantify the time parameter in the tectonomagmatic evolution of what has been called the Southern Svecofennian Arc Complex (SSAC) of SW Finland, advanced radiometric dating techniques have here been applied to rock groups of key ...
C. Ehlers, T. Skiöld, M. Vaasjoki
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U-Pb zircon determinations from the Keikyä Breccia and other sites in the Svecofennides: indications of a Svecokarelian protocrust [PDF]
Bulletin of the Geological Society of Finland, 1996 Heterogeneous zircon populations from four different localities within the Svecofennian area in Finland demonstrate that the ca. 1890 Ma old syntectonic granitoids contain older material, probably belonging to the ca. 1950 Ma Svecofennian protocrust, the
M. Vaasjoki, K. Pietikäinen, M. Vaarma
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Pre-1.91 Ga deformation and metamorphism in the Palaeoproterozoic Vammala Migmatite Belt, southern Finland, and implications for Svecofennian tectonics [PDF]
Bulletin of the Geological Society of Finland, 2004 A metamorphic event in the Vammala Migmatite Belt (VMB) at ~1.92 Ga, revealed by SHRIMP U-Pb analyses of both zircon overgrowths and monazite, is interpreted as post-depositional and is correlated with the development of the early high-grade schistosity.
R.W.R. Rutland +2 more
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Petrology, geochemistry, and geochronology of the leucogranites in southernmost Finland [PDF]
Bulletin of the Geological Society of FinlandIn the southernmost part of the Svecofennian province in Finland, leucogranites and migmatites stemming from both igneous and sedimentary protoliths reflect the complex magmatic history of the Svecofennian orogeny between 1.89 and 1.82 Ga.
Anna Saukko +4 more
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On the microfossils of Corycium enigmaticum [PDF]
Bulletin of the Geological Society of Finland, 1969 This paper deals with alga-like microfossils found in the about 2 000 m.y. old schist belt situated N of Tampere, SW Finland and belonging to the lower Svecofennian.
A. Matisto
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Insights into the tectonic evolution of the Svecofennian orogeny based on in situ Lu–Hf dating of garnet and apatite from Olkiluoto, southwestern Finland [PDF]
Solid EarthThe southern Finland granites and associated migmatitic rocks have a complex metamorphic history, being affected by multiple events during the ca. 1.88–1.79 Ga Svecofennian orogeny.
J. Engström +6 more
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Sm-Nd data for mafic-ultramafic intrusions in the Svecofennian (1.88 Ga) Kotalahti Nickel Belt, Finland - Implications for crustal contamination at the Archaean/Proterozoic boundary [PDF]
Bulletin of the Geological Society of Finland, 2007 Sm-Nd data were determined for eight mafic-ultramafic intrusions from the Svecofennian (1.88 Ga) Kotalahti Nickel Belt, Finland. The intrusions represent both mineralized and barren types and are located at varying distances from the Archaean/Proterozoic
H.V. Makkonen, H. Huhma
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Structural features and emplacement of the late Svecofennian Perniö granite sheet in southern Finland [PDF]
Bulletin of the Geological Society of Finland, 1996 The 1840-1830 Ma old Perniö granite occupies the southern margin of the Sauvo-Perniö granite area located in the western part of the late Svecofennian granite-migmatite zone in southern Finland.
O. Selonen, C. Ehlers, A. Lindroos
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Crustal development in relation to granitic magmatism in regard to D/H partition between coexisting hornblende and biotite in the Svecofennian belt [PDF]
Bulletin of the Geological Society of Finland, 1993 Tie-lines in the σD-XFe diagram of hornblende and biotite in Japanese island arc granites give commonly a similar slope to that derived from the equation of Suzuoki-Epstein's experimental work (1976).
Y. Kuroda +5 more
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The Oripää granite, SW Finland: Characterization and significance in terms of Svecofennian crustal evolution [PDF]
Bulletin of the Geological Society of Finland, 2001 Granitoid rocks of the Finnish Svecofennian have recently been at the focus of active research and new ideas regarding their petrogenesis and tecton-ic evolution have been presented by several ...
T. Rämö, M. Nironen
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