Results 71 to 80 of about 749 (183)

Late-orogenic Svecofennian deformation in SW Finland constrained by pegmatite emplacement ages

, 1996
Late stages of the Svecofennian orogeny in SW Finland were related to a tranpressional stress field and dextral movements along crustal scale shear zones under decreasing temperature and pressure conditions.
Romer, Rolf L.,, Lindroos, Alf,, Alviola, Reijo,, Ehlers, Carl,   +3 more
core   +1 more source

Seismotomography of the East European platform: a three-dimensional P-velocity model of the mantle near Fennoscandia. Part II

Геофизический журнал, 2010
This paper is an extension of a set of works on seismic tomography of East European platform. A velocity pattern given corresponds to the mantle under Fenno-Scandian shield as a northwestern part of EEP.
T. A. Tsvetkova, L. A. Shumlyanskaya, I. V. Bugaenko, L. N. Zaets   +3 more
doaj   +1 more source

Geochemical and boron isotopic compositions of tourmalines from selected gold-mineralised and barren rocks in SW Finland [PDF]

Bulletin of the Geological Society of Finland, 2010
Tourmaline-bearing rocks and a number of gold occurrences coexist in southwestern Finland, in a region where extensive magmatism and hydrothermal systems occurred during the Svecofennian orogeny, 1.9-1.8 Ga ago.
M. Talikka, S. Vuori
doaj   +1 more source

Thermal and hydrothermal influence of rapakivi igneous activity on late-Svecofennian granites in southeastern Finland. [PDF]

, 2017
The recent discovery of polymetallic vein mineralizations around the Sarvlaxviken Bay (west-ernmost part of the Wiborg Batholith, SE Finland) has challenged the common assumption that Finnish rapakivi granites are metal-infertile and encouraged further ...
Villar, Arturo
core  

Ancient and juvenile components in the continental crust and mantle: Hf isotopes in zircon from Svecofennian magmatic rocks and rapakivi granites in Sweden

, 2011
The sources of igneous rocks in the continental crust are elusive, but they may be traced by radiogenic isotopes, which convey a message about the age and composition of the concealed parts of the continent.
U.B. Andersson, Begg, G. C., G.C. Begg, Andersson, U. B., K. Högdahl, Högdahl, Karin,, W.L. Griffin, Griffin, W. L.   +7 more
core   +1 more source

STRESS-METAMORPHISM AND STRESS-METAMORPHITES IN PRECAMBRIAN OF THE LADOGA REGION

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The tectonites confined to fault zones with abnormally high, up to 12 kbar, pressures, which appear to be the products of stress-metamorphism of relatively late stage of deformation-metamorphic evolution, are identified in the regionally metamorphosed ...
Алексей Львович Кулаковский, Юрий Алексеевич Морозов, Анна Игоревна Смульская, Alexey Kulakovsky, Yury Morozov, Anna Smul'skaya   +5 more
doaj   +1 more source

The Vaasa Migmatitic Complex (Svecofennian Orogen, Finland) : Buildup of a LP-HT Dome During Nuna Assembly [PDF]

, 2020
Tectonic evolution of the Paleoproterozoic Vaasa migmatitic complex (VMC) in the central part of the Svecofennian accretionary orogen is deciphered using aeromagnetic and gravity maps, deep seismic and magnetotelluric profiles, and structural and ...
Eklund, Olav, Ramo, Tapani, Korja, A. (Annakaisa), Nikkilä, K. (Kaisa), Annakaisa Korja, Zaher, Mohamed Abdel, Zaher, M. A. (Mohamed Abdel), Olav Eklund, Nikkila, Kaisa, Holtta, Pentti, Matti Kurhila, Hölttä, P. (Pentti), Kaisa Nikkilä, Rämö, O. Tapani, Chopin, F. (Francis), Pentti Hölttä, Korja, T. (Toivo), Kurhila, M. (Matti), Kurhila, Matti, Francis Chopin, Toivo Korja, Chopin, Francis, Eklund, O. (Olav), O. Tapani Rämö, Korja, Toivo, Korja, Annakaisa, Abdel Zaher, Mohamed, Rämö, O. T. (O. Tapani), Mohamed Abdel Zaher   +28 more
core   +1 more source

Penetrative ductile deformation and amphibolite-facies metamorphism prior to 1851 Ma in the western part of the Svecofennian orogen, Fennoscandian Shield

, 2007
The Svecofennian orogen in the Fennosandian Shield consists of several Palaeoproterozoic meta-igneous provinces that generally young progressively southwards and westwards.
Hermansson, Tobias, Stephens, Michael B., Page, Laurence, Corfu, Fernando, Andersson, Jenny   +4 more
core   +1 more source

Evolution of migmatitic granulite complexes: Implications from Lapland Granulite Belt, Part I: Metamorphic geology [PDF]

Bulletin of the Geological Society of Finland, 2006
The Palaeoproterozoic Lapland granulite belt was juxtaposed between Archaean and Proterozoic terrains in the NE part of the Fennoscandian Shield concurrently with the accretion of Svecofennian arc complexes at ~1.9 Ga.
P. Tuisku, P. Mikkola, H. Huhma
doaj   +1 more source

Sr–Nd isotope and geochemical characterisation of the Paleoproterozoic Västervik formation (Baltic Shield, SE-Sweden): a southerly exposure of Svecofennian metasiliciclastic sediments

, 2011
The Paleoproterozoic Vastervik formation represents the southernmost exposure of Svecofennian metasediments and comprises a large psammitic succession of up to 5,000 m thickness dominated by quartzite with minor pelite and arkose. The Vastervik formation
I. C. Kleinhanns, B. T. Hansen, Kleinhanns, Ilka C., Hansen, Bent Tauber, M. Fischer-Gödde, Fischer-Goedde, M.   +5 more
core   +1 more source