1.88 Ga granitoids at Sorsakoski, Central Finland: A-type magmatism within the Raahe-Ladoga suture zone [PDF]
Bulletin of the Geological Society of FinlandFour quartz monzonite – granite intrusions forming the Sorsakoski granite lithodeme, are found within the Raahe-Ladoga suture zone in Central Finland. The prevailing potassium feldspar megacrystic quartz monzonites and granites form a bimodal association
Perttu Mikkola +3 more
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The Luusika potential field anomaly, eastern Estonia: modelling results [PDF]
Estonian Journal of Earth Sciences, 2018 This study considers the anomalous gravity and magnetic fields in the Alutaguse petrological–structural domain, eastern Estonia. A 10 km wide local maximum (+6.26 mGal) Bouguer anomaly field was discovered at 58.96°N, 26.61°E from the ground gravity data
Marija Dmitrijeva +2 more
doaj +1 more source
Mafic-ultramafic intrusions of Matokulma, Palojärvi, and Hongonniittu within the Central Finland Granitoid Complex with special reference to their petrogenesis and ore potential [PDF]
Bulletin of the Geological Society of FinlandWe describe three previously unknown or poorly studied mafic-ultramafic intrusions (Matokulma, Palojärvi, Hongonniittu) from the south-central part of the Paleoproterozoic Central Finland Granitoid Complex (CFGC).
Seppo Karvinen +5 more
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Tracing the SW border of the Svecofennian Domain in the Baltic Sea region: evidence from petrology and geochronology from a granodioritic migmatite [PDF]
, 2022 Geological investigations of a part of the crystalline basement in the Baltic Sea have been performed on a drill core collected from the depth of 1092-1093 m beneath the Phanerozoic sedimentary cover offshore the Latvian/Lithuanian border. The sample was
Woodard Jeremy +2 more
core +1 more source
Paleoproterozoic post-orogenic magmatism in southern Finland; geochemical, geochronological and Sr-Nd isotopic constraints on origin and magmatic evolution [PDF]
Bulletin of the Geological Society of FinlandFifteen post-orogenic, basic to acidic High-Barium-Strontium (HiBaSr) intrusions of shoshonitic affinity have been recognized in central and southern Finland.
Oliver Teräs +5 more
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Magnetite and ilmenite from some Finnish rocks [PDF]
Bulletin of the Geological Society of Finland, 1972 Coexisting accessory magnetite and ilmenite -were separated and chemically analysed from five Finnish Precambrian rocks: anorogenic olivine diabase and gabbroanorthosite as well as three metamorphosed Svecofennian quartz diorites.
I. Haapala, P. Ojanperä
doaj +1 more source
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018 A 3D model of the deep structure of the Late Paleoproterozoic Svecofennian accretionary orogen is presented. The model is based on coordinated data of geological mapping, seismic reflection surveys along the profiles FIRE-2-2a-1 and FIRE-3-3a ...
Михаил Вениаминович Минц +5 more
doaj +1 more source
Seismic structure of the central Svecofennian lithosphere
, 2021 Lithospheric structures in the Fennoscandian Shield in Sweden have been studied by a number of large-scale wide-angle seismic reflection/refraction (WARR) and normal-incidence reflection profiles since the 1960s. Among these were the over 2000 km long Fennoscandian Long Range (FENNOLORA) project in 1979 and the Baltic and Bothnian Echoes from the ...
openaire +2 more sources
Early Proterozoic stratigraphy of the Salahmi-Pyhäntä area, central Finland, with an emphasis on applying the principles of lithodemic stratigraphy to a complexly deformed and metamorphosed bedrock [PDF]
Bulletin of the Geological Society of Finland, 1988 The medium-highly metamorphozed and intensely deformed early Proterozoic supracrustal rocks of the study area, located at the boundary zone between the Karelian and Svecofennian zones in central Finland, are classified following the recommendations of ...
K. Laajoki, J. Luukas
doaj +1 more source
The 1.88 Ga Kotalahti and Vammala nickel belts, Finland: Geochemistry of the mafic and ultramafic metavolcanic rocks [PDF]
Bulletin of the Geological Society of Finland, 2009 The mafic and ultramafic volcanic rocks within the Svecofennian (1.88 Ga) Kotalahti and Vammala Nickel Belts, Finland, are spatially associated and coeval with a suite of mineralized mafic-ultramafic intrusions.
S.J. Barnes +4 more
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