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Rolf Birger Pedersen's picture

Rolf Birger Pedersen

Professor, Director
  • E-mailRolf.Pedersen@uib.no
  • Phone+47 55 58 35 17+47 913 30 278
  • Visitor Address
    Realfagbygget, Allégt. 41
  • Postal Address
    Postboks 7803
    5020 Bergen

My current research focuses on seafloor spreading, formation of oceanic lithosphere, hydrothermal systems and deep-sea geobiology. My expertise is in geochemistry, petrology and marine geology. Deep marine research is currently focused on ultraslow spreading ridges and exploration of the Arctic Mid-Ocean Ridges (AMOR). This ranges from studying volcanic crust-forming processes and the architecture of oceanic lithosphere - to water-rock-microbe interaction in hydrothermal systems. Exploration of the AMOR to clarify the extent and diversity of hydrothermal activity is an important part of my current research activity. For this, I have organized a number of international deep-sea expeditions, and I collaborate widely with marine technology institutions and companies to develop marine robotics and sampling tools for this research. More recently I have become involved in CO2 storage related research that is focused on sequestration of CO2 in the oceanic lithosphere, and on seafloor leakage scenarios and their environmental consequences.

Academic article
  • 2008. Seafloor alteration of basaltic glass: Textures, geochemistry, and endolithic microorganisms. Geochemistry Geophysics Geosystems.
  • 2008. Magma ascent and crustal accretion at ultraslow-spreading ridges: Constraints from plagioclase ultraphyric basalts from the arctic mid-ocean ridge. Journal of Petrology. 267-294.
  • 2005. Strontium isotope constraints on fluid flow in the upper oceanic crust at the East Pacific Rise. Earth and Planetary Science Letters. 83-94.
  • 2005. Magmatic segmentation of the northern Knipovich Ridge: Evidence for high-pressure fractionation at an ultraslow spreading ridge. Geochemistry Geophysics Geosystems.
  • 2004. Detrital zircon ages: a key to understanding the deposition of deep marine sandstones in the Norwegian Sea. Sedimentary Geology. 147-159.
  • 2003. Relations between granitoid magmatism and migmatization: U-Pb geochronological evidence from the Western Gneiss Complex, Norway. Journal of the Geological Society. 935-946.
  • 2003. Neoproterozoic evolution of Western Ethiopia: igneous geochemistry, isotope systematics and U-Pb ages. Geological Magazine. 373-395.
  • 2002. U-Pb zircon and titanite geochronological constraints on the late/post-Caledonian evolution of the Scandinavian Caledonides in north-central Norway. Norsk Geologisk Tidsskrift. 1-13.
  • 2002. U-Pb dating of detrital zircons for sediment provenance studies - a comparison of laser ablation ICPMS and SIMS techniques. Chemical Geology. 605-618.
  • 2002. Ordovician magmatism, deformation, and exhumation in the Caledonides of central Norway: An orphan of the Taconic orogeny? Geology. 883-886.
  • 2001. Tectonic setting, origin, and obduction history of the spontang ophiolite, Ladakh Himalaya, NW India. The Journal of geology. 715-736.
  • 2001. ODPLeg 187: Mantle reservoirs and mantle migration in the Australian-Antarctic discordance. JOIDES journal. 3-6.
  • 2001. Nd- and Pb-isotopic variations through the upper oceanic crust in DSDP/ODP Hole 504B, Costa Rica Rift. Earth and Planetary Science Letters. 221-235.
  • 2001. Diversity of life in ocean floor basalt. Earth and Planetary Science Letters. 31-37.
  • 1999. The petrogenesis of leucogranitic dykes intruding the northern Semail ophiolite, United Arab Emirates: field relationships, geochemistry and Sr/Nd isotope systematics. Contributions to Mineralogy and Petrology. 167-187.
  • 1999. ROV exploration of the Kolbeinsey Ridge: Preliminary results of the SUBMAR-99 cruise. Inter Ridge News. 32-43.
  • 1999. Mantle reservoirs and migration associated with Australian-Antarctic rifting. Ocean Drilling Program, Scientific Prospectus. S. 71.
  • 1998. Manned submersible dives to the Knipovich Ridge, Norwegian-Greenland Sea. InterRidge News. S. 44.
  • 1998. Manned submersible dives to the Knipovich Ridge, Norwegian-Greenland Sea. InterRidge News. S. 44.
  • 1998. Contrasting tonalite genesis in the Lyngen Magmatic Complex, north Norwegian Caledonides. Lithos. 243-268.
  • 1997. Evolution of arc crust and relations between contrasting sources U-Pb (age), Nd and Sr isotope systematics of the ophiolitic terrain of SW Norway. Contributions to Mineralogy and Petrology. 1-15.
  • 1995. The Lyngen Magmatic Complex: geology and geochemistry (abstract). Geonytt. 30.
  • 1994. The geochemical evolution of the Gulfjellet Ophilite Complex. Norsk Geologisk Tidsskrift.
  • 1994. Koloskopi - I utredning, behandling og kontroll av gastrointestinale sykdommer. Tidsskrift for Den norske legeforening. 2596-2600.
Academic lecture
  • 2020. Museum exhibitions as an arena for science education – insights and experiences from the new deep-sea exhibition at the Natural History Museum in Bergen.
  • 2020. Magmatism and Mantle Composition at the Slow-Spreading Mohns Ridge.
  • 2019. The architecture and evolution of axial volcanic ridges at ultraslow spreading rates.
  • 2019. Research experience with hull-mounted and AUV platforms in deep-water exploration .
  • 2019. Mapping the deep sea: A key to understand geological and mineral-forming processes.
  • 2019. Geochemistry of peridotite and gabbro from the Schultz oceanic core complex, 73°N: implications for magmatic processes at ultraslow-spreading rates.
  • 2017. Microbial and geochemical variation in sediments along the arctic mid-ocean spreading ridge system.
  • 2016. Weathering of sulphides at the Arctic Mid-Ocean Ridge.
  • 2016. New opportunities for mid-ocean ridge research in the Arctic.
  • 2016. Local environmental controls on microbial Fe(II)-oxidation in seafloor hydrothermal deposits.
  • 2016. Identifying Pyroxenite in the Mantle Source for Jan Mayen Island and Northern Kolbeinsey Ridge.
  • 2015. Weathering of Seafloor Massive Sulphide Deposits: Preliminary results from in-situ experiments at the Arctic Mid-Ocean Ridge.
  • 2015. The accretionary history of the Caledonides: new provenance data from continental margin sediments, melanges and outboard terrains in S. Norway.
  • 2015. Seafloor hydrothermal systems on the Arctic Mid-Ocean Ridge: exciting discoveries, novel technologies, ongoing research and future plans for the exploration of deep-sea environments .
  • 2015. Isolation and characterization of a novel syntrophic alkane degrading bacterium from the Loki's castle hydrothermal vent field.
  • 2015. Input and fate of hydrothermal volatiles and trace elements in deep-sea plumes from Arctic vent fields.
  • 2015. Hydrothermal activity and mineral resources in the norwegian deep-sea areas .
  • 2015. Deep-sea expeditions via telepresence: New opportunities through the NORMAR facility and Centre for Deep Sea Research. .
  • 2015. Contrasting hydrothermal systems and seafloor mineralizations at the Arctic Mid-Ocean Ridge .
  • 2015. Carbonation of partly serpentinized peridotites in the Leka Ophiolite Complex.
  • 2015. Carbon release through hydrothermal venting at the Arctic Mid-Ocean Ridges (AMOR).
  • 2014. Use of metatranscriptomics, amplicon pyrosequencing and thermodynamics to assess how microbial communities are shaped by energy availability.
  • 2014. The Hugin Fracture.
  • 2014. Techniques for importing and visualizing HiSAS cm-scale bathymetry.
  • 2014. Synthetic aperture sonar imaging of shallow hydrothermal systems on the northern Kolbeinsey Ridge.
  • 2014. Synthetic aperture sonar as a tool for rapid high-resolution deposit estimation.
  • 2014. Microbial communities associated with low-temperature venting barite chimneys in the Loki´s Castle black smoker field.
  • 2014. Microbial communities associated with low-temparture venting barite chimneys in the Loki´s Castle black smoker field.
  • 2014. Linking prokaryotes and geochemical parameters in Deep sea marine sediments.
  • 2014. High-resolution imaging of seafloor hydrothermal systems using synthetic aperture sonar.
  • 2014. Energy landscapes shape microbial communities and the distribution of biosignatures in hydrothermal systems on the Arctic Mid-Ocean Ridge.
  • 2014. Correlating abundances of archaeal lineages and geochemical parameters in deep-sea marine sediments.
  • 2014. Characterization of Shallow Seal Complexes for CO2 Storage Sites - Example from the Greater Sleipner Area.
  • 2014. Characterization of Shallow Seal Complexes for CO2 Storage Sites - Example from the Greater Sleipner Area.
  • 2014. Centre for Geobiology in FME-SUCCESS WP3.
  • 2014. Alternative SAS processing for gas seep detection.
  • 2013. Volcanism, hydrothermal activity and life in the deep sea: some highlights from the research at Centre for Geobiology.
  • 2013. Unike miljøer i norske dyphavsområder.
  • 2013. Thermodynamic constraints on the microbial ecology and biogeochemical cycling in deep-sea hydrothermal systems.
  • 2013. The 1732 phreatomagmatic eruption of Eggoeya, Jan Mayen.
  • 2013. Sulphide mineralization in Arctic seafloor hydrothermal fields: extending the European exploration area to the Far North.
  • 2013. Sulfide Sites in the Arctic Ocean: Jan Mayen and Loki’s Castle.
  • 2013. Oceanic Core Complexes on the Mohns Ridge.
  • 2013. Norske dyphav – vulkaner, varmekilder og unike miljø.
  • 2013. Monitoring the seafloor – a multidisciplinary task.
  • 2013. Formation of barite chimneys at low-temperature hydrothermal venting: evidence for complex geobio-interactions.
  • 2013. Discovery of a 3 km long seafloor fracture system in the Central North Sea.
  • 2013. Cr isotopic variations in late archean to early proterozoic near-surface chemical sediments.
  • 2013. Correlating microbial community structure with geochemical data in sediments from the Arctic Mid-Ocean Ridge.
  • 2013. Automated classification and thematic mapping of bacterial mats in the North Sea.
  • 2013. An experimental study of the formation of H2, CH4 and N-species during low temperature alteration of ultramafic rocks.
  • 2013. A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vents.
  • 2012. Volcanism along the Jan Mayen Fracture Zone in space and time.
  • 2012. Unraveling the sulfur cycle in the Loki’s Castle vent field. GV and Sediment Meeting, Hamburg, Germany.
  • 2012. The trace and Pb isotope chemistry of the Jan Mayen Fracture Zone and the extinct Aegir Ridge.
  • 2012. The Eggøyan eruption in 1732, Jan Mayen; an emerging ankaramitic surtseyjan type eruption.
  • 2012. Submarine fieldwork on the Jan Mayen Ridge; integrated seismic and ROV –sampling.
  • 2012. Ongoing Challenges on North Atlantic Rift-, Ridge- and Continental Margin-Volcanism.
  • 2012. New knowledge on the Jan Mayen Vent Fields from high-resolution seafloor mapping with interferometric synthetic aperture sonar.
  • 2012. Identification and isopach maps of recent Jan Mayen tephras; based on XRF core scanner data from marine cores.
  • 2012. Geochemical portrait of the mantle beneath Pacific ridges (with isotopes geochemistry and statistical techniques).
  • 2012. Early Oligocene alkaline volcanism related to the formation of the Jan Mayen Microcontinent.
  • 2012. ECO2 Cruises 2011 - UiB - JMVF and Sleipner.
  • 2012. Correlating geochemical data with microbial community structure in highly stratified sediments from the Arctic mid-ocean ridge.
  • 2012. Automated classification and thematic mapping of bacterial mat in North Sea.
  • 2012. Atypical Depleted Mantle Components at Mohns Ridge and along the Mid-Atlantic Ridge Near the Azores.
  • 2012. Archaea in the atmosphere.
  • 2012. Applicability of stable Cr isotope variations in marine sediments for the reconstruction of environmental changes through the geologic record.
  • 2012. 14 years of research on the Mid-Atlantic Ridge – perspectives on future mining on the ocean floor.
  • 2011. The H2DEEP project - Ultra-slow spreading and hydrogen-based deep biosphere: an overview.
  • 2011. Microbial processes and biomineralisation associated with low-temperature venting and formation of barite chimneys at Loki's Castle hydrothermal field.
  • 2011. Loki's Castle: A sediment-influenced hydrothermal vent field at the ultra-slow spreading Arctic Mid-Ocean Ridge.
  • 2011. Investigations of a unique fauna from hydrothermal vents along the Arctic Mid-Ocean Ridge (AMOR).
  • 2011. Geochemistry and Pb Isotopes from the Jan Mayen Fracture Zone and the Extinct Aegir Ridge.
  • 2011. Formation of barite chimneys in hydrothermal systems.
  • 2011. Fe stable isotope fractionation in modern and ancient hydrothermal Fe-Si deposits.
  • 2011. Diversity of microbial communities of Loki's castle black smoker field at the ultra-slow spreading arctic mid-ocean Ridge.
  • 2011. Cu-, Zn- and Fe-isotope systematics of low-T hydrothermal Fe-Si deposits.
  • 2010. Microbial life associated with low-temperature hydrothermal venting and formation of barite chimneys at Loki’s Castle vent field.
  • 2010. Metaproteomic Analysis of a Chemosynthetic Hydrothermal Vent Community Reveals Insights into Key-Metabolic Processes.
  • 2010. Loki’s Castle: Discovery and geology of a black smoker vent field at the Arctic Mid-Ocean Ridge.
  • 2010. Investigations of a novel fauna from hydrothermal vents along the Arctic Mid-Ocean Ridge (AMOR).
  • 2010. Geobiology of hydrothermal vent fields in the Norwegian-Greenland Sea.
  • 2010. CO2 leakage scenarios - knowledge from natural analogs.
  • 2010. Active and extinct vent fields at the Arctic Mid-Ocean Ridge.
  • 2010. A variety of microbial mats cover the chimney walls of the Loki's Castle hydrothermal field.
  • 2009. Ultraslow spreading and hydrothermal activity – new discoveries.
  • 2009. Transition metal isotope fractionation in hydrothermal deposits.
  • 2009. The Northern Boundary of the Jan Mayen Microcontinent, North Atlantic determined from ocean bottom seismic, multichannel seismic, and gravity data.
  • 2009. Microbial population structure in low temperature iron hydroxide deposits at the 71°N hydrothermal vent field the Arctic-Ocean Ridge.
  • 2009. Microbial involvement in the precipitation of iron in organic mats associated with a neutrophilic spring of Borra caves, Vishakapatanam, India.
  • 2009. Microbial Diversity in Deep-Sea Sediments: Influence of Volcanism and Hydrothermal Activity.
  • 2009. Low-temperature siliceous Fe-deposits at the Jan Mayen hydrothermal fields: formation and processes deduced from architecture, microtexture and geochemistry.
  • 2009. Low-temperature alteration of dunite and microbial life.
  • 2009. Geochemistry of hydrothermal fluids and rift valley sediments of the Loki's Castle vent field at the ultra-slow spreading southern Knipovich Ridge.
  • 2009. Evolution of the Jan Mayen Ridge - new geochemical and geophysical data from the Jan Mayen Fracture Zone.
  • 2009. Cultivation of iron oxidizing bacteria from the Jan Mayen hydrothermal vent fields.
  • 2009. Combination of multiple ion counting and faraday detection for U-Pb and Hf isotopic analysis of zircon by laser ablation MC ICPMS.
  • 2008. Ultra-slow spreading and hydrogen-based deep biosphere: Objectives and preliminary results of the H2DEEP project.
  • 2008. Microbial influence on the structural design, microtexture and geochemistry of hydrothermal iron-deposits.
  • 2008. Microbial diversity in low temperature iron deposits at the71°N hydrothermal vent field the Arctic-Ocean Ridge.
  • 2008. IODP Drilling of Conjugate North Atlantic Volcanic Rifted Margins, Causes and Implications of Excess Magmatism.
  • 2007. Strontium and neodymium isotope systematics of plutonic rocks from the Atlantis Massif Mid-Atlantic Ridge.
  • 2007. Microbial life associated with weathering of ultramafic rocks.
  • 2007. High Latitude Climate Variability and Its Effect on Fishery Resources As Revealed by Fossil Otoliths.
  • 2007. Gas Hydrates on the Norway - Barents Sea - Svalbard margin (GANS).
  • 2007. Diversity of microorganisms associated with low temperature iron mounds at a hydrothermal vent field along the Arctic ridges.
  • 2006. Lithium isotopic variations in volcanic rocks from the northern Icelandic rift zone.
  • 2006. Distribution and diversity of microorganisms associated with a newly discovered hydrothermal vent field at the Mohns Ridge.
  • 2006. Deciphering metamorphic evolution of rocks by means of Hf isotopes.
  • 2005. Two Vent Fields Discovered at the Ultraslow Spreading Arctic Ridge System.
  • 2005. Tectonic processes in the Jan Mayen Fracture Zone based on earthquake occurence and bathymetry.
  • 2005. Oceanic crustal accretion along the Mohns and Knipovich ridges.
  • 2005. Microbial life associated with weathering of ultramafic rocks.
  • 2005. Isotopic Composition of Lithium in Volcanic Rocks From the Northern Icelandic Rift Zone.
  • 2005. Geochemical signatures of riftrelated volcanism in the Vøring Plateau and the S.E Greenland marging.
  • 2005. Gas hydrates and natural seeps in the Nordic Seas - the GANS working group.
  • 2005. Fluid flow rate, temperature and heat flux at Mohns Ridge vent fields: evidence from isosampler measurements for phase separated hydrothermal circulation along the arctic ridge system.
  • 2005. Extreme geochemical variations in upper-mantle peridotites from the Arctic.
  • 2005. Bio-Mediated Fe-deposits associated with a newly discovered vent field at the Mohns Ridge.
  • 2004. The deep biosphere of the ocean crust: new knowledge from ODP Leg 187.
  • 2004. The April 14, 2004 Jan Mayen earthquake.
  • 2004. Old Ocean crust sustain subsurface microbial Life.
  • 2004. Microbial communities in seafloor and subseafloor basalts.
  • 2004. Microbial communities in cold seafloor and sub-seafloor basalt.
  • 2004. Genome-based investigations of microbial communities in deep ocean crust.
  • 2004. Development of orthogonal and oblique spreading at slow and ultraslow spreading centres: example from the Mohns Ridge.
  • 2004. Analysis of Fe isotopes in sulphides by laser ablation high-mass resolution MC ICPMS.
  • 2003. ”Plume-ridge” interaksjon i Jan Mayen området.
  • 2003. Segmentation of the ultra slow spreading Knipovich Ridge.
  • 2003. Provenance of soapstone used in medieval buildings in the Bergen region, West Norway.
  • 2003. Microbes in cold oceanic crust.
  • 2003. Hydrotermale skorsteiner og sulfidbærende breksjer fra Kolbeinsey- og Mohnsryggen.
  • 2003. Analysis of Fe isotopes in sulphides by laser ablation high-mass resolution MC ICPMS.
  • 2001. The deep biosphere and its interaction with the lithosphere.
  • 2001. Provenance of meta-sedimentary rocks: Constraints on the accretionary history of the Scandinavian Caledonides.
  • 2001. Mikroorganismer i havbunnsskorpen.
  • 2001. Microbial populations in basalt from the ocean crust.
  • 2001. Microbial diversity in basalt investigated by 16S rDNA and culturing methods. Scientific results, ODP Leg 187.
  • 2001. Microbes in ocean floor basalt: their association to alteration textures and influence on the geochemical composition of palagonite.
  • 2001. Microbes in ocean floor basalt.
  • 2001. Karakterisering av mikrobielle populasjoner fra basalter i havbunnsskorpen.
  • 2001. Jan Mayen, related to ridge transform-plume or ridge-transform interactions?
  • 2000. Provenance of Austevoll-Bremnes migmatite complex.
  • 2000. Norwegian Ridge Related Research.
  • 1999. U-Pb dates of late Caledonian fracturing.
  • 1999. U-Pb dates from dioritic and granitic rocks in Velfjord, North-Central Norway.
  • 1999. Relations between granitoid magmatism and migmatization: U-Pb geochronological evidences from the Western Gneiss Complex Norway.
  • 1999. Oceanic basalt, an important deep biosphere.
  • 1999. Biodegradation of basaltic glass in the upper oceanic crust.
  • 1997. The evolution and collosional history of intra-Iapetus arcs as recorded in the ophiolite terranes of the Caledonides.
  • 1997. Mixing of contrasting magmas in a supra subduction zone magma chamber: evidence from the Lyngen Gabbro (Northern Norway).
  • 1994. Transendoscopic Ultrasonograpy in the Diagnosis of Dienlarfoy's Vascular Malformation.
  • 1994. Three contrasting tonalites in the Lyngen Magmatic Complex.
  • 1994. The Lyngen Magmatic Complex: Geology and geochemistry.
  • 1994. Major oceanic shear zones in the Lyngen Magmatic Complex.
  • 1994. Bonintitic magmatism within Caledonian ophiolites: age relations, isotope geochemistry, petrology and petrogenetic constraints.
Academic anthology/Conference proceedings
  • 2015. Shallow Water Venting on the Arctic Mid-Ocean Ridge: the Seven Sisters Hydrothermal System, Mineral Resources in a Sustainable World, Proceedings of the 13th Biennial SGA Meeting. Society for Geology Applied to Mineral Deposits, University of Nancy.
Abstract
  • 2013. Sulfide Sites in the Arctic Ocean: Jan Mayen and Loki’s Castle. Mineralogical magazine. 929.
  • 2013. Diverse hydrothermal venting at the Jan Mayen vent fields, AMOR. Mineralogical magazine. 670.
  • 2012. Atypical Depleted Mantle Components at Mohns Ridge and along the Mid-Atlantic Ridge Near the Azores. Mineralogical magazine.
  • 2009. Volatiles in the Loki's Castle and Jan Mayen vent fields of the ultra-slow spreading Knipovich and Mohns Ridges. Geochimica et Cosmochimica Acta. A763-A763.
  • 2009. Microbial population structure at low-temperature siliceous Fe-deposits at the Jan.-Mayen hydrothermal fields. Geochimica et Cosmochimica Acta. A981-A981.
  • 2009. Geochemistry of rift valley sediments and hydrothermal fluids at the ultra-slow spreading S.Knipovich ridge. Geochimica et Cosmochimica Acta. A95-A95.
  • 2009. Discovery of the Loki’s Castle Vent field at the ultra-slow spreading Arctic Mid-ocean ridge. Geochimica et Cosmochimica Acta. A1008-A1008.
  • 2008. Laser ablation MC ICP-MS U-Pb zircon dating using multiple channeltron ion counting detection. Geochimica et Cosmochimica Acta. A492-A492.
  • 2008. Felsic magmas indicate crustal recycling during NAIP and FLIP formation. Geochimica et Cosmochimica Acta. A983-A983.
  • 2008. Evolution of the Jan Mayen Ridge - New data from the Jan Mayen Fracture Zone. Geochimica et Cosmochimica Acta. A877-A877.
  • 2007. Fe isotopic composition in suphides from hydrothermal deposits at the Arctic mid-ocean ridge. Geochimica et Cosmochimica Acta. A514-A514.
  • 2007. Crustal - mantle melt interactions during continental breakup at the Early Paleocene Voring Plateau, North Atlantic igneous province. Geochimica et Cosmochimica Acta. A661-A661.
  • 2004. Microbial communities in seafloor and subseafloor basalts. Geochimica et Cosmochimica Acta. A402-A402.
  • 2004. Low-temperature hydrothermal mounds and chimneys formed by microbial mediated precipitation of Fe and Si. Geochimica et Cosmochimica Acta. A260-A260.
  • 2004. Fe isotopic composition of sulphides from hydrothermal vents in North Atlantic. Geochimica et Cosmochimica Acta. A302-A302.
  • 2004. Development of orthogonal and oblique spreading at slow and ultraslow spreading centres: Example from the Mohns Ridge. Geochimica et Cosmochimica Acta. A695-A695.
  • 2004. Contrasting liquid lines of descent along the northern Knipovich ridge: A result of high- and low-pressure fractionation? Geochimica et Cosmochimica Acta. A707-A707.
Academic literature review
  • 2013. Microbial life associated with low-temperature alteration of ultramafic rocks in the Leka ophiolite complex. 318-339.

More information in national current research information system (CRIStin)

Research groups