Search Results - "Thorseth, I H"

Diversity of life in ocean floor basalt by Thorseth, I.H., Torsvik, T., Torsvik, V., Daae, F.L., Pedersen, R.B.

“…Electron microscopy and biomolecular methods have been used to describe and identify microbial communities inhabiting the glassy margins of ocean floor…”
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Alteration of Oceanic Volcanic Glass: Textural Evidence of Microbial Activity by Fisk, Martin R., Giovannoni, Stephen J., Thorseth, Ingunn H.

“…The subsurface biosphere may constitute as much as 50 percent of Earth's biomass. Direct and indirect evidence suggests that an extensive biosphere exists in…”
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Microbial alteration of 0–30-Ma seafloor and sub-seafloor basaltic glasses from the Australian Antarctic Discordance by Thorseth, I H, Pedersen, R B, Christie, D M

“…Scanning electron microscopic observations of alteration rims in basaltic glasses dredged from 0-2.5-Ma seafloor and drilled from 18-28-Ma ocean crust (Ocean…”
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Barite in hydrothermal environments as a recorder of subseafloor processes: a multiple-isotope study from the Loki's Castle vent field by Eickmann, B., Thorseth, I. H., Peters, M., Strauss, H., Bröcker, M., Pedersen, R. B.

“…Barite chimneys are known to form in hydrothermal systems where barium‐enriched fluids generated by leaching of the oceanic basement are discharged and react…”
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Formation of H2, CH4 and N-species during low-temperature experimental alteration of ultramafic rocks by Okland, I., Huang, S., Thorseth, I.H., Pedersen, R.B.

“…Hydrogen, methane and ammonium are important chemical species for chemolithotrophic microorganisms that sustain subsurface endolithic communities. It is well…”
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Microbes play an important role in the alteration of oceanic crust by Thorseth, I.H., Torsvik, T., Furnes, H., Muehlenbachs, K.

“…Microbes have been identified within altered parts of the glass rims of pillow lavas in the upper oceanic crust, 237 m below the top of the volcanic basement…”
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Low temperature alteration of serpentinized ultramafic rock and implications for microbial life by Okland, I., Huang, S., Dahle, H., Thorseth, I.H., Pedersen, R.B.

“…Alteration (serpentinization) of ultramafic rocks is known to generate hydrogen through oxidation of ferrous iron in olivine or pyroxene and reduction of…”
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A combined TEM and NanoSIMS study of endolithic microfossils in altered seafloor basalt by McLoughlin, N., Wacey, D., Kruber, C., Kilburn, M.R., Thorseth, I.H., Pedersen, R.B.

“…The incipient alteration of basaltic glass to palagonite in recent seafloor lavas from the arctic Mohns Ridge was studied by complimentary…”
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Microbial life associated with low-temperature alteration of ultramafic rocks in the Leka ophiolite complex by Daae, F. L., Økland, I., Dahle, H., Jørgensen, S. L., Thorseth, I. H., Pedersen, R. B.

“…Water–rock interactions in ultramafic lithosphere generate reduced chemical species such as hydrogen that can fuel subsurface microbial communities. Sampling…”
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Microbial diversity of Loki's Castle black smokers at the Arctic Mid-Ocean Ridge by Jaeschke, A., Jørgensen, S. L., Bernasconi, S. M., Pedersen, R. B., Thorseth, I. H., Früh-Green, G. L.

“…Hydrothermal vent systems harbor rich microbial communities ranging from aerobic mesophiles to anaerobic hyperthermophiles. Among these, members of the…”
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Evidence for microbial activity at the glass-alteration interface in oceanic basalts by Torsvik, Terje, Furnes, Harald, Muehlenbachs, Karlis, Thorseth, Ingunn H, Tumyr, Ole

“…A detailed microbiological and geochemical study related to the alteration of basaltic glass of pillow lavas from the oceanic crust recovered from Hole 896A on…”
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Microbial fractionation of carbon isotopes in altered basaltic glass from the Atlantic Ocean, Lau Basin and Costa Rica Rift by Furnes, Harald, Muehlenbachs, Karlis, Torsvik, Terje, Thorseth, Ingunn H., Tumyr, Ole

“…Textural and DNA studies of pillow lavas in DSDP/ODP cores from the Atlantic Ocean, the Lau Basin and the Costa Rica Rift indicate that microbes had a…”
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Textural and chemical effects of bacterial activity on basaltic glass: an experimental approach by Thorseth, I.H., Furnes, H., Tumyr, O.

“…Naturally altered basaltic glass may show features such as pitted textures and variable degree of element mobilization relative to the fresh parent. The…”
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Archaeoglobus sulfaticallidus sp. nov., a thermophilic and facultatively lithoautotrophic sulfate-reducer isolated from black rust exposed to hot ridge flank crustal fluids by STEINSBU, Bjørn O, THORSETH, Ingunn H, NAKAGAWA, Satoshi, INAGAKI, Fumio, LEVER, Mark A, ENGELEN, Bert, ØVREAS, Lise, PEDERSEN, Rolf B

“…A novel thermophilic and lithoautotrophic sulfate-reducing archaeon was isolated from black rust formed on the steel surface of a borehole observatory (CORK…”
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Hydrothermal vent microbial communities: a fossil perspective by LITTLE, Crispin T. S, THORSETH, Ingunn H

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Microbial life associated with low‐temperature alteration of ultramafic rocks in the L eka ophiolite complex by Daae, F. L., Økland, I., Dahle, H., Jørgensen, S. L., Thorseth, I. H., Pedersen, R. B.

“…Water–rock interactions in ultramafic lithosphere generate reduced chemical species such as hydrogen that can fuel subsurface microbial communities. Sampling…”
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Microbial diversity of L oki's C astle black smokers at the A rctic M id‐ O cean R idge by Jaeschke, A., Jørgensen, S. L., Bernasconi, S. M., Pedersen, R. B., Thorseth, I. H., Früh‐Green, G. L.

“…Hydrothermal vent systems harbor rich microbial communities ranging from aerobic mesophiles to anaerobic hyperthermophiles. Among these, members of the…”
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Microbial community diversity in seafloor basalt from the Arctic spreading ridges by Lysnes, Kristine, Thorseth, Ingunn H., Steinsbu, Bjørn Olav, Øvreås, Lise, Torsvik, Terje, Pedersen, Rolf B.

“…Microbial communities inhabiting recent (⩽1 million years old; Ma) seafloor basalts from the Arctic spreading ridges were analyzed using traditional enrichment…”
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Comparative studies of the lichen–rock interface of four lichens in Vingen, western Norway by Bjelland, Torbjørg, Thorseth, Ingunn H

“…Sandstone samples from Vingen, western Norway have been analysed to find whether different lichen taxa may explain variations in the degree of weathering at…”
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The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic) by Schander, Christoffer, Rapp, Hans Tore, Kongsrud, Jon Anders, Bakken, Torkild, Berge, Jørgen, Cochrane, Sabine, Oug, Eivind, Byrkjedal, Ingvar, Todt, Christiane, Cedhagen, Tomas, Fosshagen, Audun, Gebruk, Andrey, Larsen, Kim, Levin, Lisa, Obst, Matthias, Pleijel, Fredrik, Stöhr, Sabine, Warén, Anders, Mikkelsen, Nina Therese, Hadler-Jacobsen, Silje, Keuning, Rozemarijn, Petersen, Kristin Heggøy, Thorseth, Ingunn H., Pedersen, Rolf B.

“…The macrofauna of the newly discovered hydrothermal vent field on the Mohn Ridge at 71°N was investigated. Samples were collected during the cruise BIODEEP…”
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