Håkon Olav Austrheim

• Austrheim, Håkon Olaf; Hu, Depan; Ulven, Ole Ivar & Andersen, Niels Højmark (2024). Formation of Natural Magnesium Silica Hydrate (M-S-H) and Magnesium Alumina Silica Hydrate (M-A-S-H) Cement. Materials. ISSN 1996-1944. 17(5). doi: 10.3390/ma17050994.
• Engvik, Ane; Trepmann, C.A. & Austrheim, Håkon Olaf (2023). Microfabric evolution during metasomatism and deformation, exemplified by the nodular sillimanite gneisses (Bamble lithotectonic domain, South Norway). Lithos. ISSN 0024-4937. 456-457. doi: 10.1016/j.lithos.2023.107317. Fulltekst i vitenarkiv
• Austrheim, Håkon Olaf & Andersen, Torgeir Bjørge (2023). Extreme enrichment of Arsenic and Antimony during alteration of serpentinised peridotites to form listvenite-like dolomite-quartz rocks and Ni-Cr-rich jasper and quartzites in the Highland Border Complex of Scotland. Journal of the Geological Society. ISSN 0016-7649. 180. doi: 10.1144/jgs2023-054. Vis sammendrag

  Alteration of serpentinised peridotitesof Highland Border Complex in Scotland took place in two steps. Listvenite-like dolomite-quartz rocks formed by addition of CaO, Sr and CO2 at constant MgO and SiO2 involving a mass increase of ca. 140 %. Stage-two involved the dissolution of dolomite evinced by the abundant pores and rhombohedral-shaped grains of quartz to form Cr- and Ni-rich jasper and quartzites. Formation of the jasper-quartzites involve a mass reduction of ca. 80%. The listvenite-like and jasper-quartzite rocks have enrichment in ACCEPTED MANUSCRIPT the fluid mobile elements Ba, Sr, Cs, As and Sb. The As is present in the Aluminium- Phosphate-Sulphate group of minerals formed during alteration of Cr-spinel. Cr-spinel also alters to porous hematite and ferrihydrite with patches containing up to 5.5 wt% As2O3. Enrichment of As, related to alteration of chromite, is previously unknown from natural rocks, but strongly resembles efficient methods used for remediation of this toxic element. Formation of quartzite and jasper from peridotite and their common presence as pebbles both in the Devonian Old Red conglomerates, in the Highland Border Complex and in Devonian Basins in the Scandinavian Caledonides, highlights their importance and potential for provenance- and tectono-stratigraphic correlations.

• Austrheim, Håkon Olaf; Engvik, Ane; Ganerød, Morgan; Dunkel, Kristina G & Velo, Mari Roen (2022). Low-grade prehnite-pumpellyite facies metamorphism and metasomatism in basement rocks adjacent to the Permian Oslo rift: The importance of displacive reactions. Journal of Metamorphic Geology. ISSN 0263-4929. 40(9), s. 1467–1492. doi: 10.1111/jmg.12682. Fulltekst i vitenarkiv
• Putnis, Andrew; Moore, Josephine; Prent, Alexander M.; Beinlich, Andreas Michael & Austrheim, Håkon Olaf (2021). Preservation of granulite in a partially eclogitized terrane: Metastable phenomena or local pressure variations? Lithos. ISSN 0024-4937. 400-401. doi: 10.1016/j.lithos.2021.106413.
• Austrheim, Håkon Olaf; Corfu, Fernando & Renggli, Christian J. (2021). From peridotite to fuchsite bearing quartzite via carbonation and weathering: with implications for the Pb budget of continental crust. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 176. doi: 10.1007/s00410-021-01851-z. Fulltekst i vitenarkiv
• de Ruiter, Lisa; Gunnæs, Anette Eleonora; Dysthe, Dag Kristian & Austrheim, Håkon Olaf (2021). Quartz dissolution associated with magnesium silicate hydrate cement precipitation. Solid Earth (SE). ISSN 1869-9510. 12(2), s. 389–404. doi: 10.5194/se-12-389-2021.
• Jamtveit, Bjørn; Dunkel, Kristina G; Petley-Ragan, Arianne Juliette; Austrheim, Håkon Olaf; Corfu, Fernando & Schmid, Daniel Walter (2021). Rapid fluid-driven transformation of lower continental crust associated with thrust-induced shear heating. Lithos. ISSN 0024-4937. 396-397. doi: 10.1016/j.lithos.2021.106216.
• Engvik, Ane; Gautneb, Håvard; Baranwal, Vikas Chand; Rønning, Jan-Steinar; Solberg, Janja Knezevic & Liu, Yunhe [Vis alle 7 forfattere av denne artikkelen] (2021). The control of shear-zone development and electric conductivity by graphite in granulite: An example from the Proterozoic Lofoten-Vesterålen Complex of northern Norway. Terra Nova. ISSN 0954-4879. 33(5), s. 529–539. doi: 10.1111/ter.12545. Vis sammendrag

  Graphite impacts crustal rheology and electric conductivity in the lower crust. In a combined geophysical and geological study from the Proterozoic Lofoten-Vesterålen Complex, Norway, we show the enrichment of graphite resulted in zones with strong schistosity and a sharp strain gradient towards host massive granulite gneiss. Increased graphite content resulted in high-conductivity zones with true resistivity values <10 Ωm compared with a resistivity of >3,000 Ωm in the low-conductive crust. The regionally distributed graphite zones contain up to 39% graphite with variable amounts of quartz, feldspars, biotite and pyroxenes and where graphite is present in stable assemblage to orthopyroxene. High-ordered graphite and biotite with a strong-preferred orientation define the well-developed foliation. Our results demonstrate that graphite accounts for the high electric conductivity of this former Proterozoic lower-crustal segment. The presence of graphite causes strain localisation in the granulite facies crust, reducing crustal strength and may thereby influence continental architecture and evolution of collision zones.

• Malvoisin, Benjamin; Austrheim, Håkon Olaf; Hetényi, György; Reynes, Julien; Hermann, Jörg & Baumgartner, Lukas [Vis alle 7 forfattere av denne artikkelen] (2020). Sustainable densification of the deep crust. Geology. ISSN 0091-7613. 48(7), s. 673–677. doi: 10.1130/G47201.1.
• Gussone, Nikolaus; Austrheim, Håkon Olaf; Westhues, Anne & Mezger, Klaus (2020). Origin of Rodingite Forming Fluids Constrained by Calcium and Strontium Isotope Ratios in the Leka Ophiolite Complex. Chemical Geology. ISSN 0009-2541. 542. doi: 10.1016/j.chemgeo.2020.119598.
• Jung, Sejin; Jung, Haemyeong & Austrheim, Håkon Olaf (2020). Microstructural Evolution of Amphibole Peridotites in Åheim, Norway, and the Implications for Seismic Anisotropy in the Mantle Wedge. Minerals. ISSN 2075-163X. 10(4). doi: 10.3390/min10040345. Fulltekst i vitenarkiv
• Moore, Jo; Beinlich, Andreas; Piazolo, Sandra; Austrheim, Håkon Olaf & Putnis, Andrew (2020). Metamorphic Differentiation via Enhanced Dissolution along High Permeability Zones . Journal of Petrology. ISSN 0022-3530. 61(10). doi: 10.1093/petrology/egaa096.
• Cao, Yi; Du, Jinxue; Park, Munjae; Jung, Sejin; Park, Yong & Kim, Dohyun [Vis alle 9 forfattere av denne artikkelen] (2020). Metastability and Nondislocation-Based Deformation Mechanisms of the Flem Eclogite in the Western Gneiss Region, Norway. Journal of Geophysical Research (JGR): Solid Earth. ISSN 2169-9313. 125(5). doi: 10.1029/2020JB019375. Fulltekst i vitenarkiv
• Moore, Jo; Beinlich, Andreas; Porter, Jennifer K.; Talavera, Cristina; Berndt, Jasper & Piazolo, Sandra [Vis alle 8 forfattere av denne artikkelen] (2020). Microstructurally controlled trace element (Zr, U–Pb) concentrations in metamorphic rutile: An example from the amphibolites of the Bergen Arcs. Journal of Metamorphic Geology. ISSN 0263-4929. 38(1), s. 103–127. doi: 10.1111/jmg.12514.
• Dunkel, Kristina G; Jamtveit, Bjørn & Austrheim, Håkon Olaf (2019). Ophicarbonates of the Feragen Ultramafic Body, central Norway. Norwegian Journal of Geology. ISSN 2387-5844. 99(3), s. 1–18. doi: 10.17850/njg99-3-3. Fulltekst i vitenarkiv
• Petley-Ragan, Arianne Juliette; Ben-Zion, Yehuda; Austrheim, Håkon Olaf; Ildefonse, Benoit; Renard, Francois & Jamtveit, Bjørn (2019). Dynamic earthquake rupture in the lower crust. Science Advances. ISSN 2375-2548. 5(7). doi: 10.1126/sciadv.aaw0913. Fulltekst i vitenarkiv
• Jamtveit, Bjørn; Petley-Ragan, Arianne Juliette; Incel, Sarah; Dunkel, Kristina G; Aupart, Claire Olga Maryse & Austrheim, Håkon Olaf [Vis alle 9 forfattere av denne artikkelen] (2019). The effects of earthquakes and fluids on the metamorphism of the lower continental crust. Journal of Geophysical Research (JGR): Solid Earth. ISSN 2169-9313. 124(8), s. 7725–7755. doi: 10.1029/2018JB016461. Fulltekst i vitenarkiv
• de Ruiter, Lisa; Putnis, Christine V; Hovelmann, Jörn; King, Helen E. & Austrheim, Håkon Olaf (2019). Direct Observations of the Coupling between Quartz Dissolution and Mg-Silicate Formation. ACS Earth and Space Chemistry. ISSN 2472-3452. 3(4), s. 617–625. doi: 10.1021/acsearthspacechem.8b00197.
• Moore, Jo; Beinlich, Andreas; Austrheim, Håkon Olaf & Putnis, Andrew (2019). Stress orientation-dependent reactions during metamorphism. Geology. ISSN 0091-7613. 47(2), s. 151–154. doi: 10.1130/G45632.1.
• Halpaap, Felix; Rondenay, Stéphane; Perrin, Alexander; Goes, Saskia; Ottemöller, Lars & Austrheim, Håkon Olaf [Vis alle 8 forfattere av denne artikkelen] (2019). Earthquakes track subduction fluids from slab source to mantle wedge sink. Science Advances. ISSN 2375-2548. 5(4). doi: 10.1126/sciadv.aav7369. Fulltekst i vitenarkiv Vis sammendrag

  Subducting plates release fluids as they plunge into Earth’s mantle and occasionally rupture to produce intraslab earthquakes. It is debated whether fluids and earthquakes are directly related. By combining seismic observations and geodynamic models from western Greece, and comparing across other subduction zones, we find that earthquakes effectively track the flow of fluids from their slab source at >80 km depth to their sink at shallow (<40 km) depth. Between source and sink, the fluids flow updip under a sealed plate interface, facilitating intraslab earthquakes. In some locations, the seal breaks and fluids escape through vents into the mantle wedge, thereby reducing the fluid supply and seismicity updip in the slab. The vents themselves may represent nucleation sites for larger damaging earthquakes.

• Petley-Ragan, Arianne Juliette; Dunkel, Kristina G; Austrheim, Håkon Olaf; Ildefonse, Benoit & Jamtveit, Bjørn (2018). Microstructural Records of Earthquakes in the Lower Crust and Associated Fluid-Driven Metamorphism in Plagioclase-Rich Granulites. Journal of Geophysical Research (JGR): Solid Earth. ISSN 2169-9313. 123(5), s. 3729–3746. doi: 10.1029/2017JB015348. Fulltekst i vitenarkiv
• Jamtveit, Bjørn; Ben-Zion, Yehuda; Renard, Francois & Austrheim, Håkon Olaf (2018). Earthquake-induced transformation of the lower crust. Nature. ISSN 0028-0836. 556(7702), s. 487–491. doi: 10.1038/s41586-018-0045-y. Fulltekst i vitenarkiv
• Jamtveit, Bjørn; Moulas, Evangelos; Andersen, Torgeir Bjørge; Austrheim, Håkon Olaf; Corfu, Fernando & Petley-Ragan, Arianne Juliette [Vis alle 7 forfattere av denne artikkelen] (2018). High Pressure Metamorphism Caused by Fluid Induced Weakening of Deep ontinental Crust. Scientific Reports. ISSN 2045-2322. 8. doi: 10.1038/s41598-018-35200-1. Fulltekst i vitenarkiv Vis sammendrag

  Studies of mineral equilibria in metamorphic rocks have given valuable insights into the tectonic processes operating at convergent plate margins during an orogeny. Geodynamic models simulating orogenesis and crustal thickening have been constrained by temperature and pressure estimates inferred from the mineral assemblages of the various lithologies involved along with age constrains from increasingly precise geochronological techniques. During such studies it is assumed that the pressure experienced by a given rock is uniquely related to its depth of burial. This assumption has been challenged by recent studies of high pressure (HP) and ultrahigh pressure (UHP) rocks. Here, we describe an example of Caledonian HP metamorphism from the Bergen Arcs in western Norway, and show that the associated formation of Caledonian eclogites at the expense of Proterozoic granulites was related to local pressure perturbations rather than burial, and that the HP metamorphism resulted from fluid-induced weakening of an initially dry and highly stressed lower crust when thrust upon the hyperextended margin of the Baltic shield.

• Aupart, Claire Olga Maryse; Dunkel, Kristina G; Angheluta, Luiza; Austrheim, Håkon Olaf; Ildefonse, Beniot & Malthe-Sørenssen, Anders [Vis alle 7 forfattere av denne artikkelen] (2018). Olivine Grain Size Distributions in Faults and Shear Zones: Evidence for Nonsteady State Deformation. Journal of Geophysical Research (JGR): Solid Earth. ISSN 2169-9313. 123(9), s. 7421–7443. doi: 10.1029/2018JB015836. Fulltekst i vitenarkiv
• Engvik, Ane; Taublad, H.; Solli, Arne; Grenne, Tor & Austrheim, Håkon Olaf (2018). Dynamic metamorphism: stable isotopes, fluid evolution, and deformation of albitite and sapolite metagabbro. Geofluids. ISSN 1468-8115. 2018. doi: 10.1155/2018/9325809. Fulltekst i vitenarkiv
• Janots, Emilie; Austrheim, Håkon Olaf; Spandler, C; Hammerli, Johannes; Trepmann, Claudia A. & Berndt, Jasper [Vis alle 8 forfattere av denne artikkelen] (2018). Rare earth elements and Sm-Nd isotope redistribution in apatite and accessory minerals in retrogressed lower crust material (Bergen Arcs, Norway). Chemical Geology. ISSN 0009-2541. 484, s. 120–135. doi: 10.1016/j.chemgeo.2017.10.007.
• Centrella, Stephen; Putnis, Andrew; Lanari, Pierre & Austrheim, Håkon Olaf (2018). Textural and chemical evolution of pyroxene during hydration and deformation: A consequence of retrograde metamorphism. Lithos. ISSN 0024-4937. 296-299, s. 245–264. doi: 10.1016/j.lithos.2017.11.002.
• Clerc, Adriane; Renard, Francois; Austrheim, Håkon Olaf & Jamtveit, Bjørn (2018). Spatial and size distributions of garnets grown in a pseudotachylyte generated during a lower crust earthquake. Tectonophysics. ISSN 0040-1951. 733, s. 159–170. doi: 10.1016/j.tecto.2018.02.014. Fulltekst i vitenarkiv
• Beinlich, Andreas; Austrheim, Håkon Olaf; Mavromatis, Vasileios; Grguric, Ben; Putnis, Christine V & Putnis, Andrew (2018). Peridotite weathering is the missing ingredient of Earth's continental crust composition. Nature Communications. ISSN 2041-1723. 9(1). doi: 10.1038/s41467-018-03039-9. Fulltekst i vitenarkiv
• Putnis, Andrew; Jamtveit, Bjørn & Austrheim, Håkon Olaf (2017). Metamorphic processes and seismicity: The Bergen Arcs as a natural laboratory. Journal of Petrology. ISSN 0022-3530. 58(10), s. 1871–1898. doi: 10.1093/petrology/egx076.
• Austrheim, Håkon Olaf; Dunkel, Kristina G; Plümper, Oliver; Ildefonse, Benoit; Liu, Yang & Jamtveit, Bjørn (2017). Fragmentation of wall rock garnets during deep crustal earthquakes. Science Advances. ISSN 2375-2548. 3(2). doi: 10.1126/sciadv.1602067. Fulltekst i vitenarkiv
• Kovaleva, Elizaveta; Austrheim, Håkon Olaf & Klötzli, Urs Stefan (2017). Interpretation of zircon coronae textures from metapelitic granulites of the Ivrea-Verbano Zone, northern Italy: Two-stage decomposition of Fe-Ti oxides. Solid Earth (SE). ISSN 1869-9510. 8(4), s. 789–804. doi: 10.5194/se-8-789-2017.
• Dunkel, Kristina G; Austrheim, Håkon Olaf; Ildefonse, Benoit & Jamtveit, Bjørn (2017). Transfer of olivine crystallographic orientation through a cycle of serpentinisation and dehydration. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 172(8). doi: 10.1007/s00410-017-1378-5. Fulltekst i vitenarkiv
• de Ruiter, Lisa & Austrheim, Håkon Olav (2017). Formation of magnesium silicate hydrate cement in nature. Journal of the Geological Society. ISSN 0016-7649. 175(2), s. 308–320. doi: 10.1144/jgs2017-089.
• Ulven, Ole Ivar; Beinlich, Andreas; Hövelmann, Jörn-Erik; Austrheim, Håkon Olav & Jamtveit, Bjørn (2017). Subarctic physicochemical weathering of serpentinized peridotite. Earth and Planetary Science Letters. ISSN 0012-821X. 468, s. 11–26. doi: 10.1016/j.epsl.2017.03.030. Fulltekst i vitenarkiv
• Porter, Jennifer & Austrheim, Håkon Olav (2017). Sulphide formation from granulite-facies S-rich scapolite breakdown. Terra Nova. ISSN 0954-4879. 29(1), s. 29–35. doi: 10.1111/ter.12242.
• Dunkel, Kristina G; Austrheim, Håkon Olav; Renard, Francois; Cordonnier, Benoit & Jamtveit, Bjørn (2017). Localized slip controlled by dehydration embrittlement of partly serpentinized dunites, Leka Ophiolite Complex, Norway. Earth and Planetary Science Letters. ISSN 0012-821X. 463, s. 277–285. doi: 10.1016/j.epsl.2017.01.047. Fulltekst i vitenarkiv
• Engvik, Ane; Corfu, Fernando; Solli, Arne & Austrheim, Håkon Olav (2017). Sequence and timing of mineral replacement reactions during albitisation in the high-grade Bamble lithotectonic domain, S-Norway. Precambrian Research. ISSN 0301-9268. 291, s. 1–16. doi: 10.1016/j.precamres.2017.01.010.
• Centrella, Stephen; Austrheim, Håkon Olav & Putnis, Andrew (2016). Mass transfer and trace element redistribution during hydration of granulites in the Bergen Arcs, Norway. Lithos. ISSN 0024-4937. 262, s. 1–10. doi: 10.1016/j.lithos.2016.06.019.
• Jamtveit, Bjørn; Austrheim, Håkon Olav & Putnis, Andrew (2016). Disequilibrium metamorphism of stressed lithosphere. Earth-Science Reviews. ISSN 0012-8252. 154, s. 1–13. doi: 10.1016/j.earscirev.2015.12.002. Fulltekst i vitenarkiv
• Centrella, Stephen; Austrheim, Håkon Olav & Putnis, Andrew (2015). Coupled mass transfer through a fluid phase and volume preservation during the hydration of granulite: An example from the Bergen Arcs, Norway. Lithos. ISSN 0024-4937. 236-237, s. 245–255. doi: 10.1016/j.lithos.2015.09.010.
• Kusebauch, Christof; John, Timm; Barnes, Jaime D.; Klügel, Andreas & Austrheim, Håkon Olav (2015). Halogen element and stable chlorine isotope fractionation caused by fluid-rock interaction (Bamble sector, SE Norway). Journal of Petrology. ISSN 0022-3530. 56(2), s. 299–324. doi: 10.1093/petrology/egv001.
• Bast, R.; Scherer, Erik E.; Mezger, Klaus; Austrheim, Håkon Olav; Ludwig, Thomas Hartmut & Marschall, Horst [Vis alle 8 forfattere av denne artikkelen] (2014). Boron isotopes in tourmaline as a tracer of metasomatic processes in the Bamble sector of Southern Norway. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 168(4). doi: 10.1007/s00410-014-1069-4.
• Hövelmann, Jörn-Erik; Austrheim, Håkon Olav & Putnis, A. (2014). Cordierite formation during the experimental reaction of plagioclase with Mg-rich aqueous solutions. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 168(3). doi: 10.1007/s00410-014-1063-x.
• Mukai, Hiroki; Austrheim, Håkon Olav; Putnis, Christine V & Putnis, Andrew (2014). Textural evolution of plagioclase feldspar across a shear zone: Implications for deformation mechanism and rock strength. Journal of Petrology. ISSN 0022-3530. 55(8), s. 1457–1477. doi: 10.1093/petrology/egu030.
• Beinlich, Andreas; Mavromatis, Vasileios; Austrheim, Håkon Olav & Oelkers, Eric H. (2014). Inter-mineral Mg isotope fractionation during hydrothermal ultramafic rock alteration - Implications for the global Mg-cycle. Earth and Planetary Science Letters. ISSN 0012-821X. 392, s. 166–176. doi: 10.1016/j.epsl.2014.02.028.
• Ulven, Ole Ivar; Storheim, Håkon; Austrheim, Håkon Olav & Malthe-Sørenssen, Anders (2014). Fracture initiation during volume increasing reactions in rocks and applications for CO2 sequestration. Earth and Planetary Science Letters. ISSN 0012-821X. 389, s. 132–142. doi: 10.1016/j.epsl.2013.12.039.
• Jung, Sejin; Jung, Haemyeong & Austrheim, Håkon Olav (2014). Characterization of olivine fabrics and mylonite in the presence of fluid and implications for seismic anisotropy and shear localization. Earth Planets and Space. ISSN 1343-8832. 66(1). doi: 10.1186/1880-5981-66-46.
• Plümper, Oliver; Beinlich, Andreas; Bach, Wolfgang; Janots, Emilie & Austrheim, Håkon Olav (2014). Garnets within geode-like serpentinite veins: Implications for element transport, hydrogen production and life-supporting environment formation. Geochimica et Cosmochimica Acta. ISSN 0016-7037. 141, s. 454–471. doi: 10.1016/j.gca.2014.07.002.
• Engvik, Ane; Ihlen, Peter Marcus & Austrheim, Håkon Olav (2014). Characterisation of Na-metasomatism in the Sveconorwegian Bamble Sector of South Norway. Geoscience Frontiers. ISSN 1674-9871. 5(5), s. 659–672. doi: 10.1016/j.gsf.2014.03.008.
• Corfu, Fernando; Austrheim, Håkon Olav & Ganzhorn, A-C (2014). Localized granulite and eclogite facies metamorphism at Flatraket and Kråkeneset, Western Gneiss Region: U-Pb data and tectonic implications. Geological Society Special Publication. ISSN 0305-8719. 390, s. 425–442. doi: 10.1144/SP390.22.
• Andersen, Torgeir Bjørge; Austrheim, Håkon Olav; Deseta, Natalie; Silkoset, Petter & Ashwal, Lewis D. (2014). Large subduction earthquakes along the fossil Moho in Alpine Corsica. Geology. ISSN 0091-7613. 42(5), s. 395–398. doi: 10.1130/G35345.1. Vis sammendrag

  ABSTRACT Subduction earthquakes release vast amounts of energy to crust and mantle lithosphere. The products of such drastic events are rarely observed in the field because they are mostly lost by subduction. We present new observations of deformation products formed by a few very large and numerous small intermediate-depth Alpine subduction earthquakes that are pre- served along the exhumed gabbro–mantle peridotite contact of the Piemont-Liguria oceanic basin in Corsica. The abrupt release of energy resulted in shear heating events that completely melted both gabbro and peridotite. The large volumes of melt that were generated can be stud- ied in the fault and injection vein breccia complex along the fault zone. The energy required for wholesale melting of a large volume of peridotite along the fault combined with previous esti- mates of stress drops show that very large earthquakes took place along the Moho of the sub- ducting plate. Because these fault rocks formed by intraplate seismicity, we suggest, by analogy with present-day subduction, that they represent a proxy for the lower seismogenic zone.

• Austrheim, Håkon Olav (2013). Fluid and deformation induced metamorphic processes around Moho beneath continent collision zones: Examples from the exposed root zone of the Caledonian mountain belt, W-Norway. Tectonophysics. ISSN 0040-1951. 609, s. 620–635. doi: 10.1016/j.tecto.2013.08.030.
• Vrijmoed, Johannes Christiaan; Austrheim, Håkon Olav; John, T; Hin, R.C.; Corfu, Fernando & Davies, G.R. (2013). Metasomatism in the Ultrahigh-pressure Svartberget Garnet-peridotite (Western Gneiss Region, Norway): Implications for the Transport of Crust-derived Fluids within the Mantle. Journal of Petrology. ISSN 0022-3530. 54(9), s. 1815–1848. doi: 10.1093/petrology/egt032.
• Beinlich, Andreas; Plümper, Oliver; Hövelmann, Jörn-Erik; Austrheim, Håkon Olav & Jamtveit, Bjørn (2012). Massive serpentinite carbonation at Linnajavri, N-Norway. Terra Nova. ISSN 0954-4879. 24(6), s. 446–455. doi: 10.1111/j.1365-3121.2012.01083.x.
• Plümper, Oliver; Piazolo, Sandra & Austrheim, Håkon Olav (2012). Olivine Pseudomorphs after Serpentinized Orthopyroxene Record Transient Oceanic Lithospheric Mantle Dehydration (Leka Ophiolite Complex, Norway). Journal of Petrology. ISSN 0022-3530. 53(9), s. 1943–1968. doi: 10.1093/petrology/egs039.
• Malvoisin, Benjamin; Austrheim, Håkon Olav; Malthe-Sørenssen, Anders & Glodny, Johannes (2012). Deformation-related alteration of basaltic clasts during deep burial in sedimentary basins. Chemical Geology. ISSN 0009-2541. 322-323, s. 47–67. doi: 10.1016/j.chemgeo.2012.06.011.
• Piazolo, Sandra; Austrheim, Håkon Olav & Whitehouse, Martin (2012). Brittle-ductile microfabrics in naturally deformed zircon: Deformation mechanisms and consequences for U-Pb dating. American Mineralogist. ISSN 0003-004X. 97(10), s. 1544–1563. doi: 10.2138/am.2012.3966.
• Roffeis, Cornelia; Corfu, Fernando & Austrheim, Håkon Olav (2012). Evidence for a Caledonian amphibolite to eclogite facies pressure gradient in the Middle Allochthon Lindas Nappe, SW-Norway. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 164(1), s. 81–99. doi: 10.1007/s00410-012-0727-7.
• Plümper, Oliver; King, Helen E.; Vollmer, Christian; Ramasse, Quentin; Jung, Haemyeong & Austrheim, Håkon Olav (2012). The legacy of crystal-plastic deformation in olivine: high-diffusivity pathways during serpentinization. Contributions to Mineralogy and Petrology. ISSN 0010-7999. 163(4), s. 701–724. doi: 10.1007/s00410-011-0695-3.
• Hövelmann, Jörn-Erik; Putnis, Christine V; Ruiz-Agudo, E & Austrheim, Håkon Olav (2012). Direct Nanoscale Observations of CO2 Sequestration during Brucite [Mg(OH)(2)] Dissolution. Environmental Science and Technology. ISSN 0013-936X. 46(9), s. 5253–5260. doi: 10.1021/es300403n.
• Lundmark, Anders Mattias; Gabrielsen, Roy H.; Austrheim, Håkon Olav; Flaat, Kjersti; Strand, Tor & Ohm, Sverre Ekrene (2012). Late Devonian rifting in the central North Sea: evidence from altered felsic volcanic rocks in the Embla oil field. Marine and Petroleum Geology. ISSN 0264-8172. 29(1), s. 204–218. doi: 10.1016/j.marpetgeo.2011.06.002.
• Hövelmann, Jörn-Erik; Austrheim, Håkon Olav & Jamtveit, Bjørn (2012). Microstructure and porosity evolution during experimental carbonation of a natural peridotite. Chemical Geology. ISSN 0009-2541. 334, s. 254–265. doi: 10.1016/j.chemgeo.2012.10.025.
• Beinlich, Andreas Michael & Austrheim, Håkon Olav (2012). In situ sequestration of atmospheric CO2 at low temperature and surface cracking of serpentinized peridotite in mine shafts. Chemical Geology. ISSN 0009-2541. 332, s. 32–44. doi: 10.1016/j.chemgeo.2012.09.015.
• Jamtveit, Bjørn; Kobchenko, Maya; Austrheim, Håkon Olav; Malthe-Sørenssen, Anders; Røyne, Anja & Svensen, Henrik (2011). Porosity evolution and crystallization-driven fragmentation during weathering of andesite. Journal of Geophysical Research (JGR): Solid Earth. ISSN 2169-9313. 116. doi: 10.1029/2011JB008649.
• Hövelmann, Jörn-Erik; Austrheim, Håkon Olav; Beinlich, Andreas Michael & Munz, Ingrid Anne (2011). Experimental study of the carbonation of partially serpentinized and weathered peridotites. Geochimica et Cosmochimica Acta. ISSN 0016-7037. 75(22), s. 6760–6779. doi: 10.1016/j.gca.2011.08.032.
• Engvik, Ane; Mezger, K.; Wortelkamp, S.; Bast, R.; Corfu, Fernando & Korneliussen, A. [Vis alle 9 forfattere av denne artikkelen] (2011). Metasomatism of gabbro - mineral replacement and element mobilization during the Sveconorwegian metamorphic event. Journal of Metamorphic Geology. ISSN 0263-4929. 29(4), s. 399–423. doi: 10.1111/j.1525-1314.2010.00922.x.

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• Harlov, Dan & Austrheim, Håkon Olav (2013). Metasomatism and the Chemical Transformation of Rock. Springer. ISBN 978-3-642-28393-2. 806 s.

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• Austrheim, Håkon Olaf & Andersen, Torgeir Bjørge (2024). Extreme enrichment of Arsenic and Antimony during formation of Ni-Cr- rich jasper and quartzite from serpentinized peridotite. Vis sammendrag

  Extreme enrichment of Arsenic and Antimony during formation of Ni-Cr- rich jasper and quartzite from serpentinized peridotite Håkon Austrheima and Torgeir B. Andersenb aDepartment of Geosciences, University of Oslo,Oslo, Norway, e-mail: h.o.austrheim@geo.uio.no bDepartment of Geosciences, University of Oslo, Oslo, Norway, e-mail: t.b.andersen@geo.uio.no Alteration of serpentinised peridotites of Highland Border Complex in Scotland take place in two steps. Listvenite-like dolomite-quartz rocks are formed by addition CaO and CO2 at constant MgO and SiO2 involving a mass-increase of ca 140 %. Stage-two involves dissolution of dolomite evinced by the abundant pores and rhombohedral-shaped grains of quartz to form Cr- and Ni-rich jasper and quartzites. Formation of the jasper-quartzites involve a mass-reduction of ca 80%. The listvenite-like and jasper-quartzite rocks have enrichment in the fluid mobile elements Ba, Sr, Cs, As and Sb. The As is present in the Aluminium Phosphate-Sulphate group of minerals formed during alteration of Cr- spinel. Cr-spinel also alters to porous hematite and ferrihydrite with patches containing up to 5 wt% As2O3. Enrichment of As, related to alteration of chromite, is previously unknown from natural rocks, but strongly resembles efficient methods used for remediation of this potential toxic element. Formation of quartzite and jasper from peridotite and their common presence as pebbles both in the Devonian Old Red conglomerates, in the Highland Border Complex and in Devonian Basins in the Scandinavian Caledonides, highlights their importance and potential for provenance- and tectono- stratigraphic correlations.

• Guzik, Matylda N.; Sednev-Lugovets, Anton; Almeida Carvalho, Patricia; Friis, Henrik; Lu, Yang & Vistad, Ørnulv Bjørnsson [Vis alle 7 forfattere av denne artikkelen] (2023). Sustainable materials & green technologies for renewable energy systems / Nature-inspired filters for sequestration of heavy metals.
• Lu, Yang; Sednev-Lugovets, Anton; Almeida Carvalho, Patricia; Guzik, Matylda N.; Dunkel, Kristina G & Austrheim, Håkon Olaf [Vis alle 7 forfattere av denne artikkelen] (2023). Dypingite series defined by the content of molecular H2O.
• Andersen, Torgeir Bjørge & Austrheim, Håkon Olaf (2023). Scotland revisited: Ekstreme enrichment of Arsenic and Antimon in alteret peridotites in The Highland Border Complex.
• Austrheim, Håkon Olaf & Andersen, Torgeir Bjørge (2023). Extreme enrichment of Arsenic and Antimony in altered peridotite; mechanism and consequences.
• Friis, Henrik; Lu, Yang; Sednev-Lugovets, Anton; Almeida Carvalho, Patricia; Guzik, Matylda N. & Dunkel, Kristina G [Vis alle 7 forfattere av denne artikkelen] (2023). Dypingitt - Nytt 'liv' i gamle gruver.
• Lu, Yang; Sednev-Lugovets, Anton; Almeida Carvalho, Patricia; Guzik, Matylda N.; Dunkel, Kristina G & Austrheim, Håkon Olaf [Vis alle 7 forfattere av denne artikkelen] (2023). Dypingite revisited. Norsk Mineralsymposium. 2023, s. 23–30.
• Sednev-Lugovets, Anton; Lu, Yang; Almeida Carvalho, Patricia; Vistad, Ørnulv Bjørnsson; Friis, Henrik & Austrheim, Håkon Olaf [Vis alle 7 forfattere av denne artikkelen] (2022). Dypingite: The phase identification and transformation. Vis sammendrag

  Dypingite is a naturally occurring mineral, with an empirical formula Mg₅(CO₃)₄(OH)₂·5H₂O, and a member of the hydrocarbonate mineral group. It was named in 1970 by Gunnar Raade, after the Dypingdal serpentine-magnesite deposit in Norway ( ). Recently, it was reported that this mineral can effectively remove heavy metals (e.g., Cr, Cd, Cu, Pb, Ni ( )) from water and cause their long-term immobilisation ( ). It is expected that the unique desert rose morphology of the compound or/and peculiarities of its crystal structure (Figure 1) are the reasons of the dypingite remarkable sorption properties. Despite the fact that this mineral has been known for 50 years, the information about its unit cell parameters, or even Bragg peak positions, is inconsistent and surprisingly limited. To partly fill this gap, we have been performing comprehensive structural and microstructural studies on the natural and synthetic dypingite powder samples to: i) identify a crystalline phase called dypingite; ii) correctly index powder X-ray diffraction (PXD) patterns so as to determine the compound unit cell parameters and to solve its crystal structure; iii) investigate the dypingite phase transformation occurring upon the compound hydration/dehydration.

• Sednev-Lugovets, Anton; Lu, Yang; Almeida Carvalho, Patricia; Vistad, Ørnulv Bjørnsson; Friis, Henrik & Austrheim, Håkon Olaf [Vis alle 7 forfattere av denne artikkelen] (2022). Dypingite: The phase identification and transformation. Vis sammendrag

  Dypingite is a naturally occurring mineral, with an empirical formula Mg₅(CO₃)₄(OH)₂·5H₂O, and a member of the hydrocarbonate mineral group. It was named in 1970 by Gunnar Raade, after the Dypingdal serpentine-magnesite deposit in Norway ( ). Recently, it was reported that this mineral can effectively remove heavy metals (e.g., Cr, Cd, Cu, Pb, Ni ( )) from water and cause their long-term immobilisation ( ). It is expected that the unique desert rose morphology of the compound or/and peculiarities of its crystal structure (Figure 1) are the reasons of the dypingite remarkable sorption properties. Despite the fact that this mineral has been known for 50 years, the information about its unit cell parameters, or even Bragg peak positions, is inconsistent and surprisingly limited. To partly fill this gap, we have been performing comprehensive structural and microstructural studies on the natural and synthetic dypingite powder samples to: i) identify a crystalline phase called dypingite; ii) correctly index powder X-ray diffraction (PXD) patterns so as to determine the compound unit cell parameters and to solve its crystal structure; iii) investigate the dypingite phase transformation occurring upon the compound hydration/dehydration.

• Engvik, Ane; Gautneb, Håvard; Mørkved, Pål Tore; Solberg, Janja Knezevic; Erambert, Muriel & Austrheim, Håkon Olaf (2021). Proterozoic deep carbon - The graphite bearing rocks of the Lofoten-Vesterålen area, North Norway; Characterisation, origin and the role of fluids. .
• Engvik, Ane; Gautneb, Håvard; Solberg, Janja Knezevic; Rønning, Jan Steinar & Austrheim, Håkon Olaf (2020). High-grade formation of graphite in Vesterålen, northern Norway, and its consequences for petrophysical properties of the lower continental crust.
• de Ruiter, Lisa; Austrheim, Håkon Olaf; Dysthe, Dag Kristian & Gunnæs, Anette Eleonora (2018). Quartz weathering associated with magnesium silicate hydrate cement precipitation.
• de Ruiter, Lisa; Austrheim, Håkon Olaf; Gunnæs, Anette Eleonora & Dysthe, Dag Kristian (2018). Quartz dissolution and M-S-H cement precipitation in a high pH ultramafic system.
• Austrheim, Håkon Olaf (2018). Fluids, Metamorphism and Seismicity.
• Halpaap, Felix; Rondenay, Stéphane; Goes, Saskia; Perrin, Alexander; Ottemöller, Lars & Austrheim, Håkon Olaf [Vis alle 8 forfattere av denne artikkelen] (2018). Western Hellenic Subduction Zone: deep earthquake activity 2000 - 2017, plate interface geometry and thermal model. Vis sammendrag

  Here we provide observations of deep earthquakes in the Western Hellenic Subduction Zone, a model of the top of the slab and a corresponding two-dimensional model of the subduction zone's thermal structure. Seismic observations include hypocenter locations with arrival time picks of 2172 events based on several temporary and permanent deployments, and focal mechanisms for 85 of these events. The complete earthquake dataset including picks is available in the Nordic and QuakeML formats, while the hypocenter and focal mechanisms solutions are also listed in tables. The models of slab top and thermal structure are available in netCDF format.

• Halpaap, Felix; Rondenay, Stéphane; Ottemöller, Lars; Perrin, Alexander; Goes, Saskia & Austrheim, Håkon Olaf (2018). Seismicity, Metamorphism & Fluid Migration in the Western Hellenic Subduction Zone.
• Ulven, Ole Ivar; Austrheim, Håkon Olaf & Jamtveit, Bjørn (2018). Self-induced serpentine deformation and its effect on weathering.
• Ruiter, Lisa De; Austrheim, Håkon Olav & Dysthe, Dag Kristian (2017). Formation of magnesium silicate hydrate cement in the weathering zone of ultramafites.
• Ruiter, Lisa De; Austrheim, Håkon Olav & Dysthe, Dag Kristian (2017). Formation of magnesium silicate hydrate cement during lithification of ultramafic-rich glacial deposits.
• Ruiter, Lisa De; Austrheim, Håkon Olav & Dysthe, Dag Kristian (2016). The lithification of ultramafic dominated till with magnesium silicate hydrate: a new green concrete.
• Ulven, Ole Ivar; Austrheim, Håkon Olav; Beinlich, Andreas; Hövelmann, Jörn-Erik & Jamtveit, Bjørn (2015). Subarctic physicochemical weathering of serpentinized peridotite.
• Ulven, Ole Ivar; Beinlich, Andreas; Sun, WaiChing; Malthe-Sørenssen, Anders & Austrheim, Håkon Olav (2015). Fracture Formation due to Growth of Hydrous Carbonates.
• Dysthe, Dag Kristian & Austrheim, Håkon Olav (2015). Beyond research based teaching: Teaching interdisciplinary research and pushing students beyond their training.
• Dysthe, Dag Kristian & Austrheim, Håkon Olav (2015). Beyond research based teaching: Teaching interdisciplinary research and pushing students beyond their training.
• Ulven, Ole Ivar; Austrheim, Håkon Olav; Hövelmann, Jörn-Erik; Beinlich, Andreas & Malthe-Sørenssen, Anders (2014). Fragmentation and Carbonation of Serpentinized Dunites.
• Dunkel, Kristina G.; Drivdal, Kerstin; Austrheim, Håkon Olav; Andersen, Torgeir Bjørge & Jamtveit, Bjørn (2014). Faulting and Serpentinisation of Peridotites in the Leka Ophiolite.
• Andersen, Torgeir Bjørge; Deseta, Natalie; Silkoset, Petter; Austrheim, Håkon Olav & Ashwal, Lewis D. (2014). Large Subduction Earthquakes along the fossil MOHO in Alpine Corsica: what was the role of fluids?
• Silkoset, Petter; Andersen, Torgeir Bjørge; Austrheim, Håkon Olav; Magraso, Anna & Wheeler, John (2013). Microstructure of ultramafic pseudotachylyte from Alpine Corsica – insights into earthquakes in mantle lithosphere.
• Drivdal, Kerstin; Austrheim, Håkon Olav & Andersen, Torgeir Bjørge (2013). Mineral reactions and structural evolution of deformation zones transecting the layered sequence of the Leka Ophiolite Complex (LOC).
• Aasen, Hedda S; Andersen, Torgeir Bjørge & Austrheim, Håkon Olav (2013). Eclogite facies pseudotachylytes in the Lindås Nappe, Bergen Arcs: field observations, textures and fault dynamics.
• Austrheim, Håkon Olav (2012). Earthquakes and high grade metamorphism.

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