Nils G Holm
Affiliation: Stockholm University
- Characterisation of dissolved organic compounds in hydrothermal fluids by stir bar sorptive extraction - gas chomatography - mass spectrometry. Case study: the Rainbow field (36°N, Mid-Atlantic Ridge)Cécile Konn
Laboratoire Géochimie Métallogénie, UR Géosciences Marines, IFREMER, Ctr Brest, B, P, 70, 29280 Plouzane, France
Geochem Trans 13:8. 2012..All together our results demonstrate that SBSE-TD-GC-MS analyses of hydrothermal fluids will make important contributions to the understanding of geochemical processes, geomicrobiological interactions and formation of mineral deposits...
- The significance of Mg in prebiotic geochemistryN G Holm
Department of Geological Sciences, Stockholm University, Stockholm, Sweden
Geobiology 10:269-79. 2012....
- Formation of H2 and CH4 by weathering of olivine at temperatures between 30 and 70°CAnna Neubeck
Department of Geological Sciences, Stockholm University, Sweden
Geochem Trans 12:6. 2011..This may expand the range of environments plausible for abiotic CH4 formation both on Earth and on other terrestrial bodies...
- Chromite oxidation by manganese oxides in subseafloor basalts and the presence of putative fossilized microorganismsMagnus Ivarsson
Swedish Museum of Natural History, Department of Palaeozoology, Box 50007, SE 104 05 Stockholm, Sweden
Geochem Trans 12:5. 2011..It has previously been shown in soils and in laboratory experiments that chromium oxidation is indirectly mediated by microbial formation of manganese oxides. Here we suggest a similar process in subseafloor basalts...
- A demonstration of an affinity between pyrite and organic matter in a hydrothermal settingPaula Lindgren
Department of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK
Geochem Trans 12:3. 2011..This study points to an example from a hydrothermal setting in the geological record, demonstrating that pyrite can have a high potential for the concentration and accumulation of organic materials...
- Links between hydrothermal environments, pyrophosphate, na(+), and early evolutionNils G Holm
Department of Geological Sciences, Geochemistry Section, Stockholm University, Sweden
Orig Life Evol Biosph 41:483-93. 2011..7 mol/kg seawater. PPi could have been formed during early subduction of oceanic lithosphere by dehydration of protonated orthophosphates. A key to PPi formation in these geological environments is a low local activity of water...
- Hydrothermal simulation experiments as a tool for studies of the origin of life on Earth and other terrestrial planets: a reviewNils G Holm
Department of Geology and Geochemistry, Stockholm University, Stockholm, Sweden
Astrobiology 5:444-60. 2005..We also discuss some of the theoretical and practical considerations that apply to hydrothermal laboratory studies of organic molecules related to the origin of life on Earth and probably also to the other terrestrial planets...
- Point source influences on the carbon and nitrogen geochemistry of sediments in the Stockholm inner archipelago, SwedenHanna S Bohlin
Department of Geology and Geochemistry, Stockholm University, S 106 91 Stockholm, Sweden
Sci Total Environ 366:337-49. 2006..The sediment close to the outflow is strongly influenced by the carbon and nitrogen in the leach water...
- Life up north: meeting report: nordic astrobiology 2006: origins & distribution of life in the universeAnthony M Poole
Astrobiology 6:815-8. 2006
- Distributions of microbial activities in deep subseafloor sedimentsSteven D'Hondt
Ocean Drilling Program Leg 201 Shipboard Scientific Party, NASA Astrobiology Institute, University of Rhode Island Graduate School of Oceanography, South Ferry Road, Narragansett, RI 02882, USA
Science 306:2216-21. 2004..In turn, these sedimentary communities may supply dissolved electron donors and nutrients to the underlying crustal biosphere...
- Biological formation of ethane and propane in the deep marine subsurfaceKai Uwe Hinrichs
Deutsche Forschungsgemeinschaft Research Center Ocean Margins, Department of Geosciences, University of Bremen, P O Box 330440, 28334 Bremen, Germany
Proc Natl Acad Sci U S A 103:14684-9. 2006..Production of C(2) and C(3) hydrocarbons in this way provides a sink for acetate and hydrogen but upsets the general belief that hydrocarbons larger than methane derive only from thermal degradation of fossil organic material...