Trond Slagstad's picture

Trond Slagstad



ORCID ID: 0000-0002-8059-2426

Research interests:

My research interests revolve around the late Archaean through Proterozoic tectonic evolution of the Fennoscandian Shield and its impact on the formation of metallogenetic provinces, the Great Proterozoic Accretionary Orogen in Laurentia and Fennoscandia, and the origin and history of nappes in the Scandinavian Caledonides.

Much of my work revolves around the use of isotopic data, mainly U-Pb in zircon, titanite and monazite, Lu-Hf, Sm-Nd, Pb-Pb, Rb-Sr and S.



Slagstad, T., Marker, M., Roberts, N.M.W., Saalmann, K., Kirkland, C.L., Kulakov, E., Ganerød, M., Røhr, T.S., Møkkelgjerd, S.H.H., Granseth, A., Sørensen, B.E., 2020. The Sveconorwegian orogeny – Reamalgamation of the fragmented southwestern margin of Fennoscandia. Precambrian Research 350, 105877.

Maystrenko, Y.P., Brönner, M., Olesen, O., Saloranta, T.M., Slagstad, T., 2020. Atmospheric Precipitation and Anomalous Upper Mantle in Relation to Intraplate Seismicity in Norway. Tectonics 39, e2020TC006070.

Harstad, T.S., Mørk, M.B.E., Slagstad, T., 2020. The importance of trace element analyses in detrital Cr-spinel provenance studies: An example from the Upper Triassic of the Barents Shelf. Basin Research.

Granseth, A., Slagstad, T., Coint, N., Roberts, N.M.W., Røhr, T.S., Sørensen, B.E., 2020. Tectonomagmatic evolution of the Sveconorwegian orogen recorded in the chemical and isotopic compositions of 1070–920 Ma granitoids. Precambrian Research 340, 105527.

Maystrenko, Y.P., Slagstad, T., 2020. Radiogenic trigger and driver for continental rifting and initial ocean spreading. Terra Nova 32, 159-165.

Slagstad, T., Saalmann, K., Kirkland, C.L., Høyen, A.B., Storruste, B.K., Coint, N., Pin, C., Marker, M., Bjerkgård, T., Krill, A.G., Solli, A., Boyd, R., Angvik, T.L., Larsen, R.B., 2020. Late Neoproterozoic through Silurian tectonic evolution of the Rödingsfjället Nappe Complex, orogen-scale correlations and implications for the Scandian suture. Geological Society, London, Special Publications.


Slagstad, T., Kulakov, E., Kirkland, C.L., Roberts, N.M.W., Ganerød, M., 2019. Breaking the Grenville–Sveconorwegian link in Rodinia reconstructions. Terra Nova 31, 430-437.


Kirkland, C.L., Slagstad, T. & Johnson, T.E. 2018: Zircon as a metamorphic timekeeper: A case study from the Caledonides of central Norway. Gondwana Research 61, 63-72.

Slagstad, T. & Kirkland, C.L. 2018: Timing of collision initiation and location of the Scandian orogenic suture in the Scandinavian Caledonides. Terra Nova 30, 179-188.

Slagstad, T., Maystrenko, Y., Maupin, V. & Gradmann, S. 2018: An extinct, Late Mesoproterozoic, Sveconorwegian mantle wedge beneath SW Fennoscandia, reflected in seismic tomography and assessed by thermal modelling. Terra Nova 30, 72-77.

Slagstad, T., Roberts, N.M.W., Coint, N., Høy, I., Sauer, S., Kirkland, C.L., Marker, M., Røhr, T.S., Henderson, I.H.C., Stormoen, M.A., Skår, Ø., Sørensen, B.E. & Bybee, G.M. 2018: Magma-driven, high-grade metamorphism in the Sveconorwegian Province, SW Norway during the terminal stages of Fennoscandian Shield evolution. Geosphere 14, 861-882.


Ravna, E.K., Zozulya, D., Kullerud, K., Corfu, F., Nabelek, P.I., Janák, M., Slagstad, T., Davidsen, B., Selbekk, R.S. & Schertl, H.-P. 2017: Deep-seated Carbonatite Intrusion and Metasomatism in the UHP Tromsø Nappe, Northern Scandinavian Caledonides—a Natural Example of Generation of Carbonatite from Carbonated Eclogite. Journal of Petrology 58, 2403-2428.

Slagstad, T. & Kirkland, C.L. 2017: The use of detrital zircon data in terrane analysis: A nonunique answer to provenance and tectonostratigraphic position in the Scandinavian Caledonides. Lithosphere 9, 1002-1011.

Slagstad, T., Roberts, N.M.W. & Kulakov, E. 2017: Linking orogenesis across a supercontinent; the Grenvillian and Sveconorwegian margins on Rodinia. Gondwana Research 44, 109-115.


Culshaw, N.G., Foster, J., Marsh, J., Slagstad, T. & Gerbi, C. 2016: Kiosk Domain, Central Gneiss Belt, Grenville Province, Ontario: a Labradorian palimpsest preserved in the ductile deep crust. Precambrian Research 280, 249-278.



Bjerkgård, T., Slagstad, T., Henderson, I., Sandstad, J.S. & Schönenberger, J. 2015: Geology and gold in the Mauken basement window, Målselv, Troms. Norwegian Journal of Geology 95, 423-443.

Slagstad, T., Willemoes-Wissing, B., Coint, N., Stampolidis, A., Ganerød, M. & Ofstad, F. 2015: Geology and metallogenic potential of the westernmost Norrbotten Province around Altevatn in Troms, northern Norway. Norwegian Journal of Geology 95, 445-466.

Coint, N., Slagstad, T., Roberts, N.M.W., Marker, M., Røhr, T. & Sørensen, B.E. 2015: The Late Mesoproterozoic Sirdal Magmatic Belt, SW Norway: Relationships between magmatism and metamorphism and implications for Sveconorwegian orogenesis. Precambrian Research 265, 57-77.

Maystrenko, Y.P., Slagstad, T., Elvebakk, H.K., Olesen, O., Ganerød, G.V. & Rønning, J.S. 2015: New heat flow data from three boreholes near Bergen, Stavanger and Moss, southern Norway. Geothermics 56, 79-92.

Roberts, N. & Slagstad, T. (2015) Continental growth and reworking on the edge of the Columbia and Rodinia supercontinents; 1.86-0.9 Ga accretionary orogeny in SW Fennoscandia. International Geology Review, 57, 1582-1606.

Roberts, N.M.W., Slagstad, T. & Viola, G. 2015: The structural, metamorphic and magmatic evolution of Mesoproterozoic orogens. Precambrian Research 265, 1-9.


Faust, J. C., J. Knies, T. Slagstad, C. Vogt, G. Milzer & J. Giraudeau (2014) Geochemical composition of Trondheimsfjord surface sediments: Sources and spatial variability of marine and terrigenous components. Continental Shelf Research, 88, 61-71.



Slagstad, T., N. M. W. Roberts, M. Marker, T. S. Røhr & H. Schiellerup (2013) A non-collisional, accretionary Sveconorwegian orogen – Reply. Terra Nova, 25, 169-171.

Slagstad, T., N. M. W. Roberts, M. Marker, T. S. Røhr & H. Schiellerup (2013) A non-collisional, accretionary Sveconorwegian orogen. Terra Nova, 25, 30-37.

Slagstad, T., C. Pin, D. Roberts, C. L. Kirkland, T. Grenne, G. Dunning, S. Sauer & T. Andersen (2013) Tectonomagmatic evolution of the Early Ordovician suprasubduction-zone ophiolites of the Trondheim Region, Mid-Norwegian Caledonides. Geological Society, London, Special Publications, 390.

Roberts, N. M. W., T. Slagstad, R. R. Parrish, M. J. Norry, M. Marker & M. S. A. Horstwood (2013) Sedimentary recycling in arc magmas: geochemical and U–Pb–Hf–O constraints on the Mesoproterozoic Suldal Arc, SW Norway. Contributions to Mineralogy and Petrology, 507-523.

Culshaw, N. G., T. Slagstad, M. Raistrick & J. Dostal (2013) Geochemical, geochronological and isotopic constraints on the origin of members of the allochthonous Shawanaga and basal Parry Sound domains, Central Gneiss Belt, Grenville Province, Ontario. Precambrian Research, 228, 131-150.



Slagstad, T., B. Davidsen & J. S. Daly (2011) Age and composition of crystalline basement rocks on the Norwegian continental margin: offshore extension and continuity of the Caledonian-Appalachian orogenic belt. Journal of the Geological Society, 168, 1167-1185.



Slagstad, T., N. G. Culshaw, J. S. Daly & R. A. Jamieson (2009) Western Grenville Province holds key to midcontinental Granite-Rhyolite Province enigma. Terra Nova, 21, 181-187.

Slagstad, T., N. Balling, H. Elvebakk, K. Midttømme, O. Olesen, L. Olsen & C. Pascal (2009) Heat-flow measurements in Late Palaeoproterozoic to Permian geological provinces in south and central Norway and a new heat-flow map of Fennoscandia and the Norwegian - Greenland Sea. Tectonophysics, 473, 341-361.

Kirkland, C. L., M. J. Whitehouse & T. Slagstad (2009) Fluid-assisted zircon and monazite growth within a shear zone: a case study from Finnmark, Arctic Norway. Contributions to Mineralogy and Petrology, doi:10.1007/s00410-009-0401-x.



Slagstad, T., K. Midttømme, R. K. Ramstad & D. Slagstad. 2008. Factors influencing shallow (< 1000 m depth) temperatures and their significance for extraction of ground-source heat. In Geology for Society, ed. T. Slagstad, 99-109. Geological Survey of Norway.

Slagstad, T., C. Barrére, B. Davidsen & R. K. Ramstad (2008) Petrophysical and thermal properties of pre-Devonian basement rocks on the Norwegian continental margin. Norges geologiske undersøkelse Bulletin, 448, 1-6.

Slagstad, T. (2008) Radiogenic heat production of Archaean to Permian geological provinces in Norway. Norwegian Journal of Geology, 88, 149-166.



Slagstad, T., V. A. Melezhik, C. L. Kirkland, K. B. Zwaan, D. Roberts, I. M. Gorokhov & A. E. Fallick (2006) Carbonate isotope chemostratigraphy suggests revisions to the geological history of the West Finnmark Caledonides, North Norway. Journal of the Geological Society of London, 163, 277-289.

Slagstad, T. (2006) Chemical (U–Th–Pb) dating of monazite:Analytical protocol for a LEO 1450VP scanning electron microscope and examples from Rogaland and Finnmark, Norway. Norges geologiske undersøkelse Bulletin, 446, 11-18.

Slagstad, T. (2006) Did hot, high heat-producing granites determine the location of the Oslo Rift? Tectonophysics, 412, 105-119.



Slagstad, T., R. A. Jamieson & N. G. Culshaw (2005) Formation, crystallisation, and migration of melt in the mid-orogenic crust: Muskoka domain migmatites, Grenville Province, Ontario. Journal of Petrology, 46, 893-919.



Slagstad, T., M. A. Hamilton, R. A. Jamieson & N. G. Culshaw (2004) Timing and duration of melting in the mid orogenic crust: Constraints from U-Pb (SHRIMP) data, Muskoka and Shawanaga domains, Grenville Province, Ontario. Canadian Journal of Earth Sciences, 41, 1339-1365.

Slagstad, T., N. G. Culshaw, R. A. Jamieson & J. W. F. Ketchum. 2004. Early Mesoproterozoic tectonic history of the southwestern Grenville Province, Ontario: Constraints from geochemistry and geochronology of high-grade gneisses. In Proterozoic tectonic evolution of the Grenville orogen in North America, eds. R. P. Tollo, L. Corriveau, J. McLelland & M. J. Bartholomew, 209-241.



Slagstad, T. (2003) Geochemistry of trondhjemites and mafic rocks in the Bymarka ophiolite fragment, Trondheim, Norway: Petrogenesis and tectonic implications. Norsk Geologisk Tidsskrift, 83, 167-185.



Roberts, D., N. Walker, T. Slagstad, A. Solli & A. Krill (2002) U-Pb zircon ages from the Bymarka ophiolite, near Trondheim, central Norwegian Caledonides, and regional implications. Norsk Geologisk Tidsskrift, 82, 19-30.


Student supervision:


Current students:

Anette Granseth (PhD, NTNU)

Trond Harstad (PhD, NTNU)

Alf Andre Orvik (PhD, NTNU)

Harald Hansen (PhD, UiT)


Past students:


Gina Bjerkan (MSc, NTNU): Zircon U-Pb geochronology and whole-rock geochemistry of migmatitic gneisses reveal the late Paleoproterozoic through Devonian history of the Western Gneiss Region


Kristine Nymoen (MSc, NTNU): Palaeoproterozoic Tectonomagmatic Evolution and Crustal Architecture of the SW Margin of Fennoscandia

Steinar Halvdan Møkkelgjerd (MSc, NTNU): Metamorphic and magmatic evolution near Mandal, Vest-Agder; a key area for elucidating Sveconorwegian orogenesis


Ingjerd Ulsaker Høy (MSc, NTNU): Sveconorwegian magmatic and metamorphic evolution of southwestern Norway

Anne Bruland Høyen (MSc, NTNU): Within plate gabbroic intrusion at 565 Ma in the Uppermost Allochthon



Anette Utgården Granseth (MSc, NTNU): Deformation, Phyllonitization and Associated Element Mobilization of Granitoid Rocks. A geochemical study of the Fagervika granitoid, Norway

Stine Kjønsvik Bang (MSc, NTNU): Geokjemiske analyser av molybdenitt og andre sulfider i granittiske bergarter fra Knaben

Martin Austin Stormoen (MSc, NTNU): Synkinematic intrusion of granitoid sheets, with implications for molybdenite deposits in the Knaben Zone



Bjørgunn Heggem Dalslåen (MSc, UiB): Geological evolution of the Mesoproterozoic Nesflaten supracrustal unit

Simone Sauer (MSc, University of Bremen): A Lu-Hf isotope study of zircons from high-alumina orthopyroxene megacrysts from the Neoproterozoic Rogaland Anorthosite Province, SW Norway: A window to the Sveconorwegian lower crust



Jon Haugestaul (MSc, NTNU): Geological mapping, metamorphic- and structural analysis in the Precambrian of Madland, SW Rogaland, Norway