Browsing NTNU Open by Author "Slagstad, Trond"
Now showing items 1-20 of 20
-
Caledonian structural, metamorphic and magmatic evolution of the Rödingsfjället Nappe Complex
Fløan, Gaute Moe (Master thesis, 2022)Rödingsfjälldekkekomplekset og Helgelanddekkekomplekset utgjør de to store komponentene i øverste allokton og består av bergarter med både oseanisk og kontinental affinitet som representerer den ytterste marginen av ... -
Deformation, Phyllonitization and Associated Element Mobilization of Granitoid Rocks: - A geochemical study of the Fagervika granitoid, Norway.
Granseth, Anette Utgården (Master thesis, 2015)The Fagervika granitoid is a felsic, peraluminous intrusion that was emplaced in oceanic crust at 481 Ma, now represented as the Bymarka ophiolite in Trondheim, Norway. It belongs to the Støren Group in the Upper Allochthon ... -
Detrital zircons of the vast Triassic Snadd and De Geerdalen formations, Barents Shelf, reveal temporal changes in sediment source
Harstad, Trond Svånå; Slagstad, Trond; Kirkland, Christopher L.; Mørk, Mai Britt Engeness (Peer reviewed; Journal article, 2023)Studies of detrital-zircon age distributions from Triassic sedimentary rock successions on the Arctic Barents Shelf have resulted in different provenance interpretations. Here, we provide new U–Pb/Hf detrital-zircon data ... -
Evolution of the Gállojávri ultramafic intrusion from U-Pb zircon ages and Rb-Sr, Sm-Nd and Lu-Hf isotope systematics
Orvik, Alf Andre; Slagstad, Trond; Sørensen, Bjørn Eske; Millar, Ian; Hansen, Harald (Peer reviewed; Journal article, 2022)The Karasjok–Central Lapland Greenstone Belt is one of the largest Palaeoproterozoic greenstone belts in the Fennoscandian Shield and includes multiple (ultra)mafic intrusions, some with notable ore reserves, formed during ... -
Geologiske forutsetninger for uttak av grunnvarme i Trondheimsområdet - varmeledningsevne og varmeproduksjon
Strålberg, Johanne; Hartvigsen, Sofie (Master thesis, 2022)Det er viktig å ha kjennskap til de termiske egenskapene til berggrunnen for å oppnå riktig dimensjonering av grunnvarmesystemer i fjell. God varmeledningsevne i berggrunnen er nødvendig for å kunne hente ut varme fra ... -
Geologiske forutsetninger for uttak av grunnvarme i Trondheimsområdet - varmeledningsevne og varmeproduksjon
Strålberg, Johanne; Hartvigsen, Sofie (Master thesis, 2022)Det er viktig å ha kjennskap til de termiske egenskapene til berggrunnen for å oppnå riktig dimensjonering av grunnvarmesystemer i fjell. God varmeledningsevne i berggrunnen er nødvendig for å kunne hente ut varme fra ... -
The importance of trace element analyses in detrital Cr-spinel provenance studies: An example from the Upper Triassic of the Barents Shelf
Harstad, Trond Svånå; Mørk, Mai Britt Engeness; Slagstad, Trond (Peer reviewed; Journal article, 2021)Investigations of sandstone provenance often involve U–Pb dating and chemical/mineralogical investigations of detrital minerals that are stable in sediments. As most stable detrital minerals are from felsic–intermediate ... -
Late Neoproterozoic–Silurian tectonic evolution of the Rödingsfjället Nappe Complex, orogen-scale correlations and implications for the Scandian suture
Slagstad, Trond; Saalmann, Kerstin; Kirkland, CL; Høyen, Anne Bruland; Storruste, Bergliot K.; Coint, Nolwenn; Pin, Christian; Marker, Mogens; Bjerkgård, Terje; Krill, Allan George; Boyd, Rognvald; Angvik, Tine Larsen; B. Larsen, Rune (Peer reviewed; Journal article, 2021)The Scandinavian Caledonides consist of disparate nappes of Baltican and exotic heritage, thrust southeastwards onto Baltica during the Mid-Silurian Scandian continent–continent collision, with structurally higher nappes ... -
Magma-driven, high-grade metamorphism in the Sveconorwegian Province, southwest Norway, during the terminal stages of Fennoscandian Shield evolution
Slagstad, Trond; Roberts, Nick M.W.; Coint, Nolwenn.; Høy, Ingjerd Ulsaker; Sauer, Simone; Kirkland, CL; Marker, Mogens; Røhr, Torkil Sørlie; Henderson, Iain; Stormoen, Martin Austin; Skår, Øyvind; Sørensen, Bjørn Eske; Bybee, Grant M. (Journal article; Peer reviewed, 2018)Recently it has been argued that the Sveconorwegian orogeny in southwest Fennoscandia comprised a series of accretionary events between 1140 and 920 Ma, behind a long-lived, active continental margin characterized by ... -
Magmatic evolution of the Gállojávri ultramafic intrusion, Norway: Implicaitons for the formation of magmatic sulphide deposits in the Karasjok Greenstone Belt
Orvik, Alf André (Doctoral theses at NTNU;2023:75, Doctoral thesis, 2023) -
Metamorphic and magmatic evolution near Mandal, Vest-Agder; a key area for elucidating Sveconorwegian orogenesis
Møkkelgjerd, Steinar H. H. (Master thesis, 2019)Feltområdet ligger mellom tettstedene Øyslebø og Try i Vest-Agder, lokalisert i Telemark litotektoniske enhet (menes å være < 1.5 Ga) langs den østre margin av Sirdal Magmatiske Belte (SMB), et 1070-1010 Ma volumiøst ... -
Multi-isotope tracing of the 1.3–0.9 Ga evolution of Fennoscandia; crustal growth during the Sveconorwegian orogeny
Granseth, Anette; Slagstad, Trond; Roberts, Nick M.W.; Hagen-Peter, Graham; Kirkland, Christopher L.; Møkkelgjerd, Steinar Halvdan Hansen; Røhr, Torkil Sørlie; Coint, Nolwenn; Sørensen, Bjørn Eske (Peer reviewed; Journal article, 2021)Magmatism between 1.3 and 0.9 Ga at the southwestern margin of Fennoscandia, comprising mainly granitic batholiths and subordinate bimodal volcanic rocks, provides a nearly continuous magmatic record of the Fennoscandian ... -
The Palaeoproterozoic Gallujavri Ultramafic Intrusion, Karasjok Greenstone Belt; Petrogenesis of a Trans-Crustal Magma System
Orvik, Alf Andre; Slagstad, Trond; Hansen, Harald; Nilsson, Lars Petter; Sørensen, Bjørn Eske (Peer reviewed; Journal article, 2022)The modern concepts of magmatic plumbing systems have evolved from simple models of melt-dominated crustal magma chambers to magmatic systems that span the continental crust. The geochemistry of these systems is challenging ... -
Palaeoproterozoic Tectonomagmatic Evolution and Crustal Architecture of the SW Margin of Fennoscandia
Nymoen, Kristine Glomsås (Master thesis, 2019)Feltområdet omfatter de fire øyene Grytøya, Bjarkøya, Sandsøya og Krøttøya i Troms, Norge, lokalisert på den tidligere sørvestlige marginen av det Fennoskandiske skjold i sen-paleoproterozoisk tid. Litologiene som finnes ... -
Provenance of the Neoproterozoic–Cambrian Vestertana Group in Finnmark, northern Norway
Størdal, Kine Tangvik (Master thesis, 2023)Detritalzirkonstudier kan bidra til å bestemme paleogeografi, tektoniske rekonstruksjoner og jordskorpeutvikling. Zirkon benyttes populært i sedimentære provenansstudier på grunn av sin robusthet og tilstedeværelse i så ... -
Single-mineral provenance method development with a case study from the Late Triassic Barents Shelf
Harstad, Trond Svånå (Doctoral theses at NTNU;2021:300, Doctoral thesis, 2021) -
The Sveconorwegian orogeny – reamalgamation of the fragmented southwestern margin of Fennoscandia
Slagstad, Trond; Marker, Mogens; Roberts, Nick M.W.; Saalmann, Kerstin; Kirkland, Christopher L.; Kulakov, Evgeniy; Ganerød, Morgan; Røhr, Torkil Sørlie; Møkkelgjerd, Steinar Halvdan Hansen; Granseth, Anette; Sørensen, Bjørn Eske (Peer reviewed; Journal article, 2020)The Sveconorwegian orogeny encompasses magmatic, metamorphic and deformational events between ca. 1140 and 920 Ma at the southwestern margin of Fennoscandia. In recent years, the tectonic setting of this nearly 200 Myr-long ... -
Tectonomagmatic Evolution of the Sveconorwegian Orogen: Insights from Geochemical and Isotopic Data
Granseth, Anette (Doctoral theses at NTNU;2022:123, Doctoral thesis, 2022)The Sveconorwegian orogen has a long, complex geological and tectonic history at the southwestern margin of the Fennoscandian Shield, which took place between 1140 and 920 Ma. For almost 150 million years of that time, ... -
Within plate gabbroic intrusion at 565 Ma in the Uppermost Allochthon - A regional, geochemical and geochronological study of the Umbukta gabbro, north-central Norway
Høyen, Anne Bruland (Master thesis, 2016)A part of the Kjerringfjell Group in the Rӧdingsfjället Nappe Complex in the Uppermost Allochthon of north-central Norway was mapped during this thesis. The rocks in this area mainly compose of garnet-biotite gneiss, ... -
Zircon U-Pb geochronology and whole-rock geochemistry of migmatitic gneisses reveal the late Paleoproterozoic through Devonian history of the Western Gneiss Region
Bjerkan, Gina (Master thesis, 2020)Studieområdet ligger på den nord-vestlige kysten av Norge, i det eksponerte grunnfjellsvinduet kjent som den vestre gneisregionen, (VGR). VGR er et område på omtrent 50 000 km2 med eksponerte gneiser av tidligproterozoisk ...