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| WAHLGREN1 1 Geological Survey of Sweden, Box 670, 751 28 Uppsala, Sweden 2 Division of Geosciences and...Luleå University of Technology, SE-971 87 Luleå, Sweden *Correspondence: ulf.bergstrom@sgu.se Abstract:...than 250 km-long orogenic segment in southwestern Sweden (Fig. 16.1) that trends approximately north–south...Lindh 1974; see Fig. 16.2). The western boundary in Sweden is concealed beneath Phanerozoic rocks in the offshore...Idefjorden terrane (Figs 16.2 & 16.3) is unique for Sweden, since its western part provides unequivocal constraints |
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| University of Göteborg, Box 460, 40530 Göteborg, Sweden b Department of Geological Sciences, University...and preSveconorwegian/Grenvillian magmatism in SW Sweden, have yielded U–Pb zircon ages at 1502±2, 1503+3/-2...Laurentia–Baltica; Mesoproterozoic magmatism; Rifting; SW Sweden; U–Pb geochronology 1. Introduction Recent models...the Baltic (Fennoscandian) Shield occurs in SW Sweden and Norway and is generally referred to as the...Gorbatschev and Bogdanova (1993)]. Recent work in SW Sweden has further constrained the ca 1.75–1.55 Ga Gothian |
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| Sciences, Karlstad University, SE-651 88 Karlstad, Sweden Department of Geological Sciences, The University...geochronology Convergent margin Proterozoic Fennoscandia Sweden Idefjorden terrane The core of Fennoscandia formed...Le-Marstrand formation rocks (SLM 2) is recognised in the Koster segment, demonstrating a return to an oceanic arc...terrane (Id) = 1.66 and 1.63–1.52 Ga rocks, Western Gneiss region (WGR) = largely 1.8–1.63 Ga rocks, and Telemarkia...Vindflomyra gneiss, Randsfjorden areae Kallebäck orthogneiss (64009/12745) Stora Lundby gneiss Håle tonalite |
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| (1993) attributed the Sveconorwegian Orogeny in Sweden to collision with North America between c. 1100...1655-1650 White Bear Arm Complex SOUTH NORWAY SOUTH SWEDEN Shear Zones Shear Zones MU MandaI-Ustaoset Zone...Eastern RV Rogaland-Vest Agder M Median k~ G~ Western Gneiss " " ~ Region W Western =(DM 0stfold-Marstrand...(granite-rhyolite), Canada BH 1530 Breven-H~illefors dykes, Sweden Fig. 2. Stage I: c. 1700-1500 Ma. Labradorian-Gothian...Fennoscandia at c. 1300 Ma. Central and southeastern Sweden consists of Svecofennian crust, formed before c |
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| autochthon, which is part of the Telemark Basement Gneiss Complex (TBGC), the northwest bounding block of...and 1250 Ma) included large alkaline suite-augen gneiss complexes, intruded (before ~ 1395 Ma) in a folded...Alkaline(baslc-int-acid)complexesand graedic-charnockitic-gneiss( ~* augen) ~-----'] Motagabbro,amphibolite('hyperite')...gneiss(mid-Kongsbergian) dustdya(qtz-dioritic) gneiss ~ ~ ............ 03 domains Stronglymigmatisedgneiss...Quartz-richgneisslayers Variable(qtz-plag-bi-hb)gneiss H Holt NV Nelaugvatn TR Trom~iy HSHis~y A Arendal |
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| peak of Svecofennian magmatic activity in central Sweden, and to the age of the main zircon populations...probably took place along an amphibolite-facies banded gneiss unit situated at the boundary. © 2001 Elsevier...oblique nature of the collision is documented in SW Sweden where major shear zones display a sinistral shear...with biotite and amphibole gneiss. The quartzite units and associated gneiss are called the Hallingdal...is intruded by a 14929 3 Ma megacrystic granitic gneiss (zircon upper intercept age; Nordgulen et al., |
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| the Ostfold-Marstrand belt of S.E. Norway and W. Sweden Bjorn Hageskov Geologisk Institut, Kobenhavns Universitet...Studies of the poly-orogenic Proterozoic crust in W. Sweden and S.E. Norway suggest a crustal evolution which...eastwards dipping Gothian subduction under western Sweden and south-eastern Norway still continued in late...Geochemistry; Tectonics; Precambrian; Late Gothian; Sweden 1. Introduction The Sveconorwegian province Shield...dipping subduction(s) under S.E. Norway and W. Sweden (Berthelsen, 1980; ,&hNl and Daly, 1989; Larsson |
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| series that form two belts in southern Norway and SW Sweden. An integrated structural study of this granite...Mandal–Ustaoset Line (MUL). WGR is the Western Gneiss Region, an area with Sveconorwegian overprint to...(Fig. 1a). It is exposed in southern Norway and SW Sweden, to the south of Caledonian nappes and to the west...overprinting usually referred to as the Western Gneiss Region (Fig. 1a). Granites of both belts share...granitic gneisses and augen gneisses (the Feda augen gneiss suite of Bingen and van Breemen, 1998a) metamorphosed |
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| away from the generation surface into granulite gneiss. Direction of dilation was determined by matching...miUimetres wide which intruded into a granulite gneiss, up to 1 m away from the generation surface. A...deformation of the Koster dyke swarm in a ductile sinistral shear zone, Koster islands, SW Sweden. - Bulletin |
 | Brewer, T.S., Åhäll, K.-I., Menuge, J.F., Storey, C.D., Parrish, R.R. (2004) Mesoproterozoic bimodal volcanism in SW Norway, evidence for recurring pre-Sveconorwegian continental margin tectonism. Precambrian Research, 134 (3) 249-273 doi:10.1016/j.precamres.2004.06.003 | Journal (article/letter/editorial) |
| Sciences, University of Karlstad, Karlstad SE-651 88, Sweden c Department of Geology, University College Dublin...now recognized. The Dal Group in south-western Sweden is a more distal equivalent of the latter. In the...1993; Bingen and van Breeman, 1998) and southern Sweden (Johansson et al., 1991; Möller, 1999). Thrusting...Precambrian Research 134 (2004) 249–273 sills in Sweden and Finland (Suominen, 1991). It is also clear...geochronology and geochemical signatures of augen gneiss suites. J. Geol. Soc. Lond. 155, 143–154. Bingen |
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| and the Baltic-Bothnian shear zone in northern Sweden CONNELLY, J. N. & AHALL, K.-I. The Mesoproterozoic...cratonization of Baltica — new age constraints from SW Sweden MENUuGE, J. F. & BREWER, T. S. Mesoproterozoic...evolution of the Eastern Segment of southwestern Sweden: tectonic constraints from U-Pb geochronology ...Segment of the Sveconorwegian Orogen, south-central Sweden 315 MERTANEN, S., PESONEN, L. J. & HUHMA, H....Gulf of Bothnia, also called Bothnian Bay, between Sweden and Finland and BABEL deep seismic reflection |
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| seismology experiment along a transect fro1n southern Sweden to the Alboran Sea [ I 983-4) Results presented...formation of extensive greens tone and granite-gneiss terranes. By 2.0 Ga, the thermal regime of the...Archaean time, accretion of greens tone and granite gneiss terranes was maintained (Windley, Chapter 6.1)...caused the Vattern graben system to form in southern Sweden where up to 1 km of 0.85-0.7 Ga old fluviatile...late-Variscan gabbro intrusion has brought Cadomian gneiss to surface. In this connection it is interesting |
