Browsing Publikasjoner fra CRIStin - NTNU by Author "B. Larsen, Rune"
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Anatomy of a deep crustal volcanic conduit system; The Reinfjord Ultramafic Complex, Seiland Igneous Province, Northern Norway
Grant, Thomas; B. Larsen, Rune; Anker-Rasch, Lars; Grannes, Kim Rune Bragstad; Iljina, Markku; McEnroe, Suzanne; Nikolaisen, Even; Schanche, Mona; Øen, Endre (Peer reviewed; Journal article, 2016)The Reinfjord Ultramafic Complex, Seiland Igneous Province represents a lower crustal magma chamber (25–30 km depth) that likely records a deep conduit system for mantle derived melts ascending through the continental ... -
The chemistry of quartz in granitic pegmatites of southern Norway: Petrogenetic and economic implications
Muller, Axel; Ihlen, Peter Marcus; Snook, Ben; B. Larsen, Rune; Flem, Belinda; Bingen, Bernard; Williamson, Ben J (Peer reviewed; Journal article, 2015)Trace element concentrations in quartz from 188 granitic pegmatites in the Froland and Evje-Iveland pegmatite fields, southern Norway, have been determined to establish exploration targets for high-purity quartz and to ... -
Crystallization and uplift path of late Variscan granites evidenced by quartz chemistry and fluid inclusions: Example from the Land's End granite, SW England
Drivenes, Kristian; B. Larsen, Rune; Müller, Axel Bernd; Sørensen, Bjørn Eske (Peer reviewed; Journal article, 2016)The megacrystic, coarse-grained granite of the Land’s End granitic complex, SW England, has been investigated by analyzing fluid inclusions, trace elements, and cathodoluminescence textures of quartz. By applying the TitaniQ ... -
Geological setting, emplacement mechanism and igneous evolution of the Atchiza mafic-ultramafic layered suite in north-west Mozambique
Ibraimo, Daniel Luis; B. Larsen, Rune (Peer reviewed; Journal article, 2015)The Atchiza mafic and ultramafic-layered suite (hereafter, “Atchiza Suite) crops out in an area 330 km2 west of the Mozambican Tete province. In an early account of the geology of this intrusion, it was considered the ... -
In situ evidence of earthquakes near the crust mantle boundary initiated by mantle co2 fluxing and reaction-driven strain softening
Sørensen, Bjørn Eske; Grant, Thomas; Ryan, Eric James; B. Larsen, Rune (Journal article; Peer reviewed, 2019)This study aims to understand the process behind the worldwide connection between deep crustal/upper mantle earthquakes and CO2 emissions along faults in rift zones. We do this by studying CO2-induced mineral reactions ... -
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 ... -
Late-magmatic immiscibility during batholith formation: assessment of B isotopes and trace elements in tourmaline from the Land’s End granite, SW England
Drivenes, Kristian; B. Larsen, Rune; Müller, Axel; Sørensen, Bjørn Eske; Wiedenbeck, Michael; Raanes, Morten Peder (Peer reviewed; Journal article, 2015)Quartz–tourmaline orbicules are unevenly distributed in the roof segment of the Land's End granite, SW England. This study shows that the orbicules formed from an immiscible hydrous borosilicate melt produced during the ... -
Magnetic Mineralogy and Petrophysical Properties of Ultramafic Rocks: Consequences for Crustal Magnetism
ter Maat, Geertje; McEnroe, Suzanne; Church, Nathan Stewart; B. Larsen, Rune (Journal article; Peer reviewed, 2019)Magnetic properties from the Reinfjord Ultramafic Complex, in northern Norway, which formed as part of a deep magmatic conduit system, have been investigated to determine the magnetic signature of ultramafic rocks now ... -
Portrait of a giant deep-seated magmatic conduit system: The Seiland Igneous Province
B. Larsen, Rune; Grant, Thomas; Sørensen, Bjørn Eske; Tegner, Christian; McEnroe, Suzanne; Pastore, Zeudia; Fichler, Christine; Nikolaisen, Even; Grannes, Kim Rune Bragstad; Church, Nathan Stewart; ter Maat, Geertje; Michels, Alexander (Journal article; Peer reviewed, 2018)The Seiland Igneous Province (SIP), Northern Norway, contains > 5000 km2 of mafic and ultramafic intrusions with minor alkaline, carbonatite and felsic rocks that were intruded into the lower continental crust at a depth ... -
X-ray Microprobe Investigation of Iron During a Simulated Silicon Feedstock Extraction Process
Bernardis, Sarah; Fakra, Sirine C.; Dal Martello, Elena; B. Larsen, Rune; Newman, Bonna K.; Fenning, David P.; Di Sabatino Lundberg, Marisa; Buonassisi, Tonio (Peer reviewed; Journal article, 2016)Elemental silicon is extracted through carbothermic reduction from silicon-bearing raw feedstock materials such as quartz and quartzites. We investigate the micron-scale distribution and valence state of iron, a deleterious ...