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Marcilly, Chloe M.; Torsvik, Trond Helge & Conrad, Clinton Phillips
(2024).
Corrigendum to “Global Phanerozoic sea levels from paleogeographic flooding maps” [Gondwana Res. 110 (2022) 128–142, (S1342937X22001563), (10.1016/j.gr.2022.05.011)].
Gondwana Research.
ISSN 1342-937X.
129,
s. 367–368.
doi:
10.1016/j.gr.2024.01.006.
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Tegner, Christian; Andersen, Torgeir Bjørge; Kjøll, Hans Jørgen; Brown, Eric L.; Graham-Hagen, Peter & Corfu, Fernando
[Vis alle 8 forfattere av denne artikkelen]
(2024).
Dyke Complexes of the Scandinavian Caledonides.
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Dyke Complexes of the Scandinavian Caledonides
Christian Tegnera, Torgeir B. Andersenb, Hans Jørgen Kjøllb, Eric L. Browna, Graham Hagen-Peterc, Fernando Corfub, Sverre Plankeb, and Trond H. Torsvikb
aDepartment of Geoscience, Aarhus University, Denmark, christian.tegner@geo.au.dk; bDepartment of Geosciences, University of Oslo, Norway; cEarth Sciences, Vrije Universiteit Amsterdam, Netherlands
Dyke complexes (c. 615 – 560 Ma) exposed in the Scandinavian Caledonides are part of the Central Iapetus Magmatic Province, a large igneous province related to the opening of the Iapetus Ocean and an earlier phase of the North Atlantic Wilson Cycle. These include a >1000 km long dyke complex preserved in the Särv, Seve and Corrovarre nappes (Andréasson et al., 1998; Hollocher et al., 2007; Tegner et al., 2019) and dykes of the Seiland Igneous Province preserved in the Kalak nappe (Robins and Takla, 1979; Reginiussen et al., 1995). The compositions of the >1000 km long dyke complex is mainly tholeiitic and displays lateral geochemical zonation from enriched to depleted basaltic compositions from south to north. In addition, the central part of this dyke complex (in Trøndelag, Norway and Jämtland, Sweden) displays alkali basalt compositions. In contrast, the dykes of the Seiland Igneous Province are entirely composed of alkali basalts including ankaramite, picrite and lamprophyres. In this talk we will review the geochemical details of the basaltic magmas in the Scandinavian dyke complexes and discuss their origin from heterogenous and most likely multiple mantle plumes, and from enriched subcontinental lithospheric mantle.
References
Andréasson, P.G., Svenningsen, O.M., Albrecht, L. (1998). Dawn of Phanerozoic orogeny in the North Atlantic tract; Evidence from the Seve-Kalak Superterrane, Scandinavian Caledonides. Journal of the Geological Society of Sweden GFF 120, 159–172. doi:10.1080/11035899801202159
Hollocher, K., Robinson, P., Walsh, E., Terry, M.P. (2007). The Neoproterozoic Ottfjället dike swarm of the Middle Allochthon, traced geochemically into the Scandian Hinterland, Western Gneiss Region, Norway. American Journal of Science 307, 901–953. doi:10.2475/06.2007.02
Reginiussen, H., Ravna, E.J.K., Berglund, K. (1995). Mafic Dykes from Øksfjord, Seiland Igneous Province, northern Norway: geochemistry and palaeotectonic significance. Geological Magazine 132, 667–681.
Robins, B., Takla, M.H. (1979). Geology and geochemistry of a metamorphosed picrite-ankaramite dyke suite from the Seiland province, northern Norway. Norsk Geologisk Tidsskrift 59, 67-95.
Tegner, C., Andersen, T.B., Kjøll, H.J., Brown, E.L., Hagen-Peter, G., Corfu, F., Planke, S., and Torsvik, T.H. (2019). A mantle plume origin for the Scandinavian Dyke Complex: a “piercing point” for 615 Ma plate reconstruction of Baltica? Geochemistry, Geophysics, Geosystems 20, 1075-1094. doi:10.1029/2018GC007941
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Shephard, Grace; Faleide, Jan Inge; Gaina, Carmen; Abdelmalak, Mohamed Mansour; Gac, Sebastien & Torsvik, Trond Helge
(2022).
Building deformable plate models for the Northeast Atlantic.
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Marcilly, Chloe M.; Torsvik, Trond Helge; Domeier, Mathew Michael & Royer, Dana L.
(2021).
Revising key parameters for long-term carbon cycle models.
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Marcilly, Chloe M.; Torsvik, Trond Helge; Domeier, Mathew Michael & Royer, Dana L.
(2021).
Refining key parameters for long-term carbon cycle models.
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Tegner, Christian; Andersen, Torgeir Bjørge; Kjøll, Hans Jørgen; Brown, Eric L.; Hagen-Peter, Graham & Corfu, Fernando
[Vis alle 8 forfattere av denne artikkelen]
(2021).
A mantle plume origin for the Scandinavian Dyke Complex: a “piercing point” for 615 Ma plate reconstruction of Baltica?
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The origin of Large Igneous Provinces (LIPs) associated with continental breakup and the reconstruction of continents older than c. 320 million years (pre-Pangea) are contentious research problems. Here we study the petrology of a 615 - 590 Myr dolerite dyke complex that intruded rift-basins of the magma-rich margin of Baltica and now is exposed in the Scandinavian Caledonides. These dykes are part of the Central Iapetus Magmatic Province (CIMP), a LIP emplaced in Baltica and Laurentia during opening of the Caledonian Wilson Cycle. The >1000 km long dyke complex displays lateral geochemical zonation from enriched to depleted basaltic compositions from south to north. Geochemical modelling of major and trace elements shows these compositions are best explained by melting hot mantle 75-250°C above ambient mantle. Although the trace element modelling solutions are non-unique, the best explanation involves melting a laterally zoned mantle plume with enriched and depleted peridotite lithologies, similar to present-day Iceland and to the North Atlantic Igneous Province. The origin of CIMP appears to have involved several mantle plumes. This is best explained if rifting and breakup magmatism coincided with plume generation zones at the margins of a Large Low Shear-wave Velocity Province (LLSVP) at the core mantle boundary. If the LLSVPs are quasi-stationary back in time as suggested in recent geodynamic models, the CIMP provides a guide for reconstructing the paleogeography of Baltica and Laurentia 615 million years ago to the LLSVP now positioned under the Pacific Ocean. Our results provide a stimulus for using LIPs as piercing points for plate reconstructions.
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Torsvik, Trond Helge; Svensen, Henrik; Steinberger, Bernhard; Royer, Dana L.; Jerram, Dougal Alexander & Jones, Morgan Thomas
[Vis alle 7 forfattere av denne artikkelen]
(2020).
Connecting the Deep Earth and the Atmosphere.
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Franke, Wolfgang; Cocks, Leonard Robert Morrison & Torsvik, Trond Helge
(2020).
Detrital zircons and the interpretation of palaeogeography, with the Variscan Orogeny as an example.
Geological Magazine.
ISSN 0016-7568.
157(4),
s. 690–694.
doi:
10.1017/S0016756819000943.
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Domeier, Mathew; Torsvik, Trond Helge; Conrad, Clinton Phillips; Steinberger, Bernhard; Doubrovine, Pavel V. & Trønnes, Reidar G
[Vis alle 9 forfattere av denne artikkelen]
(2019).
On the stability of Earth’s degree 2 mantle structure.
European Geosci. Union, Gen. Assembly, Geophys. Res. Abstr..
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Shephard, Grace; Gaina, Carmen; Torsvik, Trond Helge & Faleide, Jan Inge
(2019).
Plate tectonics and mantle structure of the Arctic, North Atlantic, and Panthalassa: recent updates.
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Shephard, Grace; Abdelmalak, Mohamed Mansour; Gaina, Carmen; Faleide, Jan Inge; Torsvik, Trond Helge & Jackson, Ruth
[Vis alle 9 forfattere av denne artikkelen]
(2019).
A Greenland centered puzzle: Updated plate reconstructions of the North Atlantic and Arctic
.
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Domeier, Mathew; Torsvik, Trond Helge; Conrad, Clinton Phillips; Steinberger, Bernhard; Doubrovine, Pavel & Trønnes, Reidar G
[Vis alle 9 forfattere av denne artikkelen]
(2019).
On the stability of Earth’s degree 2 mantle structures.
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Andersen, Torgeir Bjørge; Jakob, Johannes; Kjøll, Hans Jørgen; Quintela, Orlando; Corfu, Fernando & Torsvik, Trond Helge
[Vis alle 9 forfattere av denne artikkelen]
(2019).
Hyperextension in magma-poor and magma-rich domains along the pre-Caledonian passive margin of Baltica .
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Hyperextension in magma-poor and magma-rich domains along the pre-Caledonian passive margin of Baltica
Torgeir B. Andersen, Johannes Jakob, Hans-Jørgen Kjøll, Orlando Quintela, Fernando Corfu, Trond H. Torsvik, 1)Christian Tegner, 2)Loic Labrousse and 3)Geoffroy Mohn
CEED, Univ. Oslo; 1)Århus Univ.; 2)Sorbonne Univ, ISTeP-Paris; 3)Univ. Cergy-Pontoise
Email: t.b.andersen@geo.uio.no
The pre-Caledonian Baltican rifted margin has been outlined as a tapering wedge with increasing magmatism towards the ocean-continent transition (OCT), and with a mostly similar structure along its length. It is, however, well-known that passive margins can be complex, with different and diachronous segment-evolutions along and across strike. The Baltican nappes in the Scandes preserve a complexity akin to modern margins, including an OCT, a micro-continent and continental slivers, hyperextended-to-embryonic oceanic basins as well as a major magma-rich segment. The margin was several hundred-, probably up to 1500 km wide, before its distal parts were affected by convergence between ~480 and 450 Ma. Its vestiges, overprinted by Scandian and earlier fabrics as well as the late/post-orogenic extension, now occur at low to middle structural levels in the mountain belt. Proximal parts comprise continental to marine rift-basins with syn- to post-rift deposits of Late Cryogenian, Ediacaran and Lower Palaeozoic age. Its vestiges also comprise continental slivers, coarse- to fine-grained sediments as well as deep-marine deposits. A major change in the nappe-structure occurs across a NW-SE transverse zone parallel to a fundamental basement structure within Baltica, the Sveconorwegian front. The most prominent changes across this lineament are: 1) the coincidence with the NE-termination of the Jotun-Lindås-Dalsfjord nappe complex, interpreted as the Jotun- Lindås-Dalsfjord microcontinent (JMC) and 2) the transition from the magma-rich segment in the NE to the hyperextended, magma-poor segment in the SW. The latter has numerous (>100) solitary meta-peridotites and detrital serpentinites (some fossiliferous). The mantle-fragments w/ophicalcite breccias were emplaced tectonically and are covered mostly by deep-basin sediments and local breccias and conglomerates. This ‘mixed’ (mélange) unit was locally affected by pre-Caledonian metasomatism and intruded by gabbros and granitoids (at ~487±1 to 471±2 Ma); this magmatism is also reflected by clastic zircons (>468 Ma) present in the sediments. Other important features are Baltican basement slivers (up to 40 x 1.5 km). The magma-poor SW segment is overlain by a huge basement/cover nappe complex, which after rifting, but prior to Scandian collision, was positioned outboard the hyperextended domain as the Jotun-Lindås-Dalsfjord Microcontinent (JMC). JMC´s distal parts at Atløy, have mafic dykes and lavas in the Høyvik Gp, and were affected by early-Caledonian event(s). The SW margin segment was ~400 km long, hyperextended- and magma-poor, and received sediments as late as the Middle Ordovician (and perhaps until the onset of the mid-Silurian Scandian orogeny?). The NE magma-rich segment also has mantle peridotites and detrital serpentinites (locally w/fossils), but its most prominent characteristic is the Scandinavian Dyke Complex (SDC) forming parts of a ~615-595 Ma Large Igneous Province that probably assisted opening of the Iapetus Ocean. In the SW segment there is so far no evidence of Late Proterozoic magmatism, but Baltican basement was locally truncated by mafic dykes at ~850 to 830Ma and 615 Ma. The magma-poor SW segment, inboard the JMC, formed a transitional-crust basin opening to an ocean basin, similar to the present North Atlantic rift system between Ireland and the Hatton-Rockall ribbons. The margin of Baltica probably has its best modern analogue in the North-Atlantic and Norwegian-Greenland Sea margins.
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Andersen, Torgeir Bjørge; Jakob, Johannes; Kjøll, Hans Jørgen; Corfu, Fernando; Torsvik, Trond Helge & Tegner, Christian
[Vis alle 8 forfattere av denne artikkelen]
(2018).
Architecture and Palaeography of the per-Caldonian Margin of Baltica.
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Tegner, Christian; Andersen, Torgeir Bjørge; Kjøll, Hans Jørgen; Brown, Eric L.; Hagen-Peter, Graham & Corfu, Fernando
[Vis alle 8 forfattere av denne artikkelen]
(2018).
The pre-Caledonian Scandinavian Dyke Complex and 600 Ma plate reconstructions of Baltica.
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A spectacular dyke complex is surprisingly well preserved along c. 1000 km in the Caledonian nappes of central and northern Scandinavia. This dyke complex was originally emplaced into continental sedimentary basins along the rifted margin of Baltica, it is part of the Central Iapetus Magmatic Province (CIMP), and it has U-Pb ages of 615-590 Ma.
To constrain its origin and to potentially guide plate reconstructions of Baltica we: (1) re-visited the dyke complexes of the Ottfjället, Sarek, Kebnekaise, Tornetrask and Indre Troms mountains of Sweden and Norway; (2) produced new and compiled published geochemical data; (3) modeled mantle sources and melting dynamics; and (4) extended reconstructions of the paleo-position of Baltica back to 600 Ma. The compiled dataset includes c. 600 analyses that forms a coherent suite dominated by tholeiitic ferrobasalt, but including alkali basalts in the central portion.
The tholeiitic dykes display lateral variations in geochemical enrichment (e.g. delta-Nb, La/Sm(N) and Sr isotopes) in the southern and central portions, grading to more depleted compositions in the north. Our petrological modeling suggests melting of asthenospheric mantle involving at least two source compositions at temperatures elevated about 100 °C above ambient mantle, consistent with melting of a zoned mantle plume originating from a plume generation zone at the core-mantle boundary. If the position of the present plume generation zone in the Pacific can be viewed as stationary back to 600 Ma, we entertain the idea that the Scandinavian Dyke Complex may be used to guide plate reconstructions.
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Andersen, Torgeir Bjørge; Jakob, Johannes; Kjøll, Hans Jørgen; Corfu, Fernando; Planke, Sverre & Torsvik, Trond Helge
[Vis alle 9 forfattere av denne artikkelen]
(2018).
The Pre-Caledonian Margin of Baltica: overview and research in progress.
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The Caledonian margin of Baltica formed by continental break-up of Rodinia in the Late Proterozoic to Ediacaran. With exception of the dike-swarm near Egersund in SW Norway, the Fennoscandian basement including the autochthonous basement windows along the axis of the mountain belt were little affected by the magmatism associated with the break-up. The distal parts, however, were strongly attenuated, hyper-extended and a 1000 km long segment, intensively intruded by a Large Igneous Province (LIP), the Pre-Caledonian LIP (PC-LIP). Here, we provide glimpses of our work in progress from the vestiges of the margin. More details on several aspects of the margin evolution are presented by co-authors. Here we present a regional model for the pre-Caledonian margin suggesting it was highly complex and included micro-continental sliver(s) and both a hyperextended, magma-poor domain with transition(s) to attenuated embryonic oceanic and magma-rich margin domains. The break-up related PC-LIP magmatism lasted from approximately 615 to 570 Ma, but the most intense activity appears to have been at ~600 Ma. Our ongoing work suggests that the impingement of a mantle plume on the Ediacaran continental lithosphere was associated with a temperature anomaly of ~100oC, causing widespread melting of the asthenosphere and dyke-intrusion of the continental crust and sediments of the margin. We suggest that the pre-Caledonian margin of the Iapetus preserved in the Scandes comprise most of the elements of passive continental margins, and that it probably represents one of the best exposed field analogue for the deeper and least known parts of passive margins.
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Doubrovine, Pavel; Torsvik, Trond Helge & Domeier, Mathew
(2017).
Paleomagnetism and paleosecular variation from the late Miocene to recent lavas of Mauritius.
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We present new paleomagnetic data from the late Miocene to recent lavas of the island of Mauritius in the southwestern Indian Ocean (20.3°S, 57.6°E). The island is a shield volcano that has formed over the Reunion hotspot and is composed of three temporally-distinct series of basaltic lavas: the Older Series (4.7-8.9 Ma), the Intermediate Series (1.7-3.5 Ma) and the Younger Series (0-1 Ma). Oriented core specimens were collected from 36 sampling sites covering all three lava series. Rock magnetic analyses indicate that the remanence carriers in these basalts are pseudo-single-domain titanomagnetites with variable degrees of high-temperature oxidation. Nearly half of the sites showed pervasive magnetic overprints imparted by lightning strikes. Nonetheless, in almost all cases (35 sites), we were able to isolate the characteristic (primary) remanence directions through detailed thermal and alternating field demagnetization experiments, using the principal component analysis of demagnetization data and the analysis of remagnetization circles. Both normal and reverse polarity directions were observed, with the mean direction of the reversely-magnetized lavas (15 sites, D = 189.2°, I = 44°, a95 = 5.3°) being steeper than and ca. 9° of antiparallel from the mean direction of the normal-polarity flows (20 sites, D = 1.1°, I = -37.3°, a95 = 6.9°). The mean normal and reverse directions yield a negative reversal test that is just significant at the 5% probability level (P = 4.5%). However, when our new data set is combined with previously published paleomagnetic results from Mauritius, the difference between the normal mean direction and the antipode of the reverse mean is not significant at the 5% level, yielding a positive reversal test. The paleomagnetic pole corresponding to the combined polarity data set excluding transitional directions (86.7°N, 186.2°E, A95 = 3.5°, n = 32) is slightly far-sided, but the difference between its position and the geographic pole is not statistically significant. The estimates of paleosecular variation (PSV) and inclination anomaly (Sb = 11°, DI = -2°) are in good agreement with the results of PSV studies of recent lavas erupted at low latitudes. The implications of our new results for the structure of time-averaged geomagnetic field and the latitude dependence of PSV will be discussed.
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Faleide, Jan Inge; Abdelmalak, Mohamed Mansour; Shephard, Grace; Torsvik, Trond Helge; Gaina, Carmen & Tsikalas, Filippos
[Vis alle 9 forfattere av denne artikkelen]
(2017).
Quantification and restoration of pre-drift extension across NE Atlantic conjugate margins.
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Andersen, Torgeir Bjørge; Jakob, Johannes; Kjøll, Hans Jørgen; Corfu, Fernando; Planke, Sverre & Torsvik, Trond Helge
[Vis alle 8 forfattere av denne artikkelen]
(2017).
The Pre-Caledonian Margin of Baltica.
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The pre-Caledonian margin of Baltica formed by the rifting and eventual continental break-up of Rodinia in the Late Proterozoic to Ediacaran. With exception of the ca. 615 Ma dolerite dike-swarm near Egersund in SW Norway, the Fennoscandian basement including the mostly autochthonous basement windows in western Scandinavia (Lofoten, Western Gneiss Region, etc.) were surprisingly little affected by the rifting and the subsequent magmatism associated with the break-up. The distal parts of the margin, however, were strongly attenuated, hyper-extended and in a more than 1000 km long segment, intensively intruded by a break-up related Large-Igneous Province (LIP), here referred to as the Pre-Caledonian LIP (PC-LIP). In this presentation, we provide glimpses of new results and observations as well as work in progress from a large part of the nappe-stack of Scandinavian Caledonides containing the vestiges of the pre-Caledonian margin. More details on several aspects of the Pre-Caledonian margin evolution are presented by co-workers during this meeting. Based on our recent and some previous work, we propose a regional paleogeography model for the pre-Caledonian passive margin as it evolved from the Ediacaran into the late-Cambrian to the early-Ordovician, when the Iapetus Ocean started closing. We suggest that the distal margin architecture was highly complex and included micro-continental sliver(s) and a hyperextended, magma-poor domain with transition(s) to highly attenuated embryonic oceanic and magma-rich passive margin domains. The break-up related PC-LIP magmatism lasted from approximately 615 to 570 Ma, but the most intense dyke-emplacement appears to have been around 600 Ma. Our ongoing structural and metamorphic petrology studies, combined with geochronology, geochemical analyses and petrological modelling suggest that the impingement of a mantle plume on the Ediacaran continental lithosphere may have been associated with a temperature anomaly of up to 100oC, causing widespread melting of the asthenosphere as well as partial melt-generation in highly attenuated and intensely dike-intruded parts of the continental crust and sediments of the margin.
It is our opinion that the pre-Caledonian distal margin rocks of the Iapetus as preserved in nappes of Scandinavian Caledonides preserve most of the elements of wide passive margins, and that it probably represents one of the best exposed field analogue for the deeper and least known parts of passive margins.
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Tegner, Christian; Andersen, Torgeir Bjørge; Brown, Eric L.; Corfu, Fernando; Planke, Sverre & Kjøll, Hans Jørgen
[Vis alle 7 forfattere av denne artikkelen]
(2017).
The pre-Caledonian Scandinavian Dyke Complex and 600 Ma plate reconstructions of Baltica.
Vis sammendrag
Magmatism of the first known rifting phase of the North Atlantic Wilson cycle is surprisingly well preserved in the Cale- donian nappes of central and northern Scandinavia. Along c. 1000 km the Särv and Seve Nappes are characterised by spectacular dyke complexes and other intrusive forms origi- nally emplaced into continental sedimentary basins along the rifted margin of Iapetus. We refer to this as the magma-rich segment of the pre-Caledonian margin of Baltica, in contrast to the hyper-extended and magma-poor segment exposed in southern Norway (Andersen et al., Jakob et al., this meeting). In the larger picture the Scandinavian Dyke Complex is part of the Central Iapetus Magmatic Province ( ). The intensity, volume and structure of the Scandinavian Dyke Complex is comparable to that of the present passive margins of the North Atlantic large igneous province (Kjøll et al., this meeting) and U-Pb ages suggest magmatism was short-lived at 610-590 Ma.
To constrain the origin of the Scandinavian Dyke Complex and to potentially guide plate reconstructions of Baltica we: (1) re-visited the dyke complexes of the Särv, Sarek, Kebnekaise, Tornetrask and Indre Troms mountains of Sweden and Norway; (2) compiled new and published geochemical data for the entire dyke complex; (3) modeled mantle sources and melting dy- namics; and (4) extended reconstructions of the paleo-position of Baltica back to 600 Ma. Although the appearance of the dykes ranges from garnet amphibolite gneiss to pristine mag-
matic intrusions, all bulk rock compositions largely reflect the original magmatic rock. The compiled dataset includes c. 600 analyses that essentially forms a coherent suite dominated by tholeiitic ferrobasalt akin to the North Atlantic large igneous province, but including alkali basalts in the central portion where meta-carbonatite is also reported. A few samples (<30) are significantly contaminated with crust, but most are largely uncontaminated.
The tholeiitic dykes display systematic lateral variations over c. 1000 km in trace element compositions suggesting geochem- ical enrichment (e.g. delta-Nb and La/Sm(N) relative to mid- ocean ridge basalt) in the southern and central portions, grad- ing to more depleted compositions in the north. The most enriched tholeiites occur in the central portion that also in- cludes alkali basalts. The lateral geochemical zoning is com- parable to e.g. the North Atlantic large igneous province and around Iceland today. Our petrological modeling suggests melting of asthenospheric mantle involving at least two source compositions at temperatures elevated above ambiant mantle. We therefore speculate that the Scandinavian Dyke Complex formed by melting of a zoned mantle plume originating from a plume generation zone (margins of large low shear-wave velocity provinces) at the core-mantle boundary. If the posi- tion of the present plume generation zone in the Pacific can be viewed as stationary back to 600 Ma, we entertain the idea that the Scandinavian Dyke Complex may be used to guide plate reconstructions.
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Tegner, Christian; Andersen, Torgeir Bjørge; Brown, Eric L.; Corfu, Fernando; Planke, Sverre & Kjøll, Hans Jørgen
[Vis alle 7 forfattere av denne artikkelen]
(2017).
The pre-Caledonian Scandinavian Dyke Complex and 600 Ma plate reconstructions of Baltica.
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Torsvik, Trond Helge & Trønnes, Reidar G
(2016).
VPRO Television Netherlands, 9.-13. mai, Tilrettelegging og instruksjon for filmproduksjon på Island i serien „The mind of the universe. A journey along the frontiers of knowledge“. Serien er open access under:
www.vpro.nl/motu
www.themindoftheuniverse.nl/
og Trond H. Torsvik (founding CEED-director) er hovedperson i dette programmet.
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Tegner, Christian; Andersen, Torgeir Bjørge; Corfu, Fernando; Planke, Sverre; Kjøll, Hans Jørgen & Torsvik, Trond Helge
(2016).
The pre-Caledonian Large Igneous Province and the North Atlantic Wilson Cycle.
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Torsvik, Trond Helge
(2015).
Paleomagnetism and Plate Tectonics.
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Buiter, Susanne; Tetreault, Joya L. & Torsvik, Trond Helge
(2015).
Geodynamic models of the Wilson Cycle: From rifts to mountains to rifts.
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Domeier, Mathew & Torsvik, Trond Helge
(2015).
An explicit kinematic scenario for the Iapetus and Rheic Oceans.
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Torsvik, Trond Helge
(2015).
Past Plate Motions and The Evolution of Earth’s Lower Mantle: Relating LLSVPs and Plume Distribution.
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Bull, Abigail Louise; Torsvik, Trond Helge & Shephard, Grace
(2015).
Past Plate Motions and The Evolution of Earth’s Lower Mantle: Relating LLSVPs and Plume Distribution.
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Midtkandal, Ivar; Faleide, Jan Inge; Planke, Sverre; Myrsini, Dimitriou; Dahlberg, Maria E. & Myklebust, Reidun
[Vis alle 8 forfattere av denne artikkelen]
(2015).
Source-to-sink Dynamics in the Early Cretaceous Boreal Basin; Progradational Lobes from a Missing Source.
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Ashwal, Lewis; Torsvik, Trond Helge; Horvath, P.; Harris, C.; Webb, S. J. & Werner, Stephanie C.
[Vis alle 7 forfattere av denne artikkelen]
(2015).
Evolved Rocks in Ocean Islands Formed by Melting of Metasomatized Mantle.
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Trønnes, Reidar G & Torsvik, Trond Helge
(2015).
Dispersion of a continental crust component by the Iceland plume. Goldschmidt2015, Abstracts, 3175.
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Torsvik, Trond Helge & Trønnes, Reidar G
(2015).
Deeply buried continental crust under Iceland. Forskning-no www.forskning.no/blogg/forskningsetikken/deeply-buried-continental-crust-under-iceland.
Forskning.no.
ISSN 1891-635X.
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Torsvik, Trond Helge & Trønnes, Reidar G
(2015).
Deeply buried continental crust under Iceland. ScienceNordic http://sciencenordic.com/content/deeply-buried-continental-crust-under-iceland.
ScienceNordic.com.
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Conrad, Clinton P.; Steinberger, Bernhard & Torsvik, Trond Helge
(2014).
Dynamic Topography and Sea Level Change Inferred from Dipole and Quadrupole Moments of Plate Tectonic Reconstructions.
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Torsvik, Trond Helge; Van der Voo, Rob; Burke, Kevin; Steinberger, Bernhard & Domeier, Mathew
(2014).
Deep Mantle Structure As a Reference Frame for Absolute Plate Motions.
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Torsvik, Trond Helge
(2014).
Supercontinent Breakup and the Deep Earth.
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Cocks, L. R. M. & Torsvik, Trond Helge
(2014).
The Palaeozoic geography of Gondwana.
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Torsvik, Trond Helge
(2014).
Gondwana: paleomagnetism, paleogeography and plumes.
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Torsvik, Trond Helge
(2014).
Reidar Løvlie and Plate Tectonic consequences of sedimentary inclination shallowing.
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Torsvik, Trond Helge & Burke, Kevin
(2014).
Large igneous province locations and their connections with the core mantle boundary.
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Torsvik, Trond Helge & Cocks, L. R. M.
(2014).
Gondwana (Africa) from top to base in space and time.
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Thieulot, Cedric; Glerum, Anne; Hillebrand, Bram; Schmalholz, Stefan Markus; Spakman, Wim & Torsvik, Trond Helge
(2014).
A two- and three-dimensional numerical modelling benchmark of slab detachment.
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Steinberger, Bernhard; Spakman, Wim; Japsen, Peter & Torsvik, Trond Helge
(2014).
The key role of global solid-Earth processes in the onset of Northern Hemisphere glaciations.
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Van Der Meer, Douwe G.; Zeebe, Richard; van Hinsbergen, D.J.J; Sluijs, Appy; Spakman, Wim & Torsvik, Trond Helge
(2014).
Plate tectonic controls on atmospheric CO2 levels since the Triassic.
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Domeier, Mathew & Torsvik, Trond Helge
(2014).
Plate Tectonics in the Late Paleozoic.
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Bull, Abigail; Domeier, Mathew & Torsvik, Trond Helge
(2014).
The Effect of Plate Motion History on the Longevity of Deep Mantle Heterogeneities.
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Bochman, L.; van Hinsbergen, D.J.J; Torsvik, Trond Helge; Spakman, Wim & Pindell, James L.
(2014).
Kinematic reconstruction of the Caribbean region since the Early Jurassic.