Ole Tumyr

Earth and Planetary Sciences · Physical Sciences

14h-index1.3kcitations21works0.02yr avg
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Research Topics

Geology and Paleoclimatology Research(8), Paleontology and Stratigraphy of Fossils(8), Methane Hydrates and Related Phenomena(8), Hydrocarbon exploration and reservoir analysis(4), Geological and Geochemical Analysis(3)

Publications21 total

Element concentrations and stable oxygen and carbon isotope ratios of basalts from ODP Hole 148-896A
Figshare·2009Open Access
Bio-signatures in metabasaltic glass of a Caledonian ophiolite, West Norway
Geological Magazine·2002· 25 cited
Identifying bio-interaction with basaltic glass in oceanic crust and implications for estimating the depth of the oceanic biosphere: A review
Geological Society London Special Publications·2002· 20 cited
Bioalteration of basaltic glass in the oceanic crust
Geochemistry Geophysics Geosystems·2001· 130 citedOpen Access
Microbial fractionation of carbon isotopes in altered basaltic glass from the Atlantic Ocean, Lau Basin and Costa Rica Rift
Chemical Geology·2001· 84 cited
(Table 1) Age, thickness of sedimentary cover, depth into volcanic basement, calcite content, and carbon and oxygen isotope data of glassy and crystalline samples from the Atlantic Ocean and the Lau Basin
Figshare·2001Open Access
Biogenic alteration of volcanic glass from the Troodos ophiolite, Cyprus
Journal of the Geological Society·2001· 59 cited
Evidence for microbial activity at the glass-alteration interface in oceanic basalts
Earth and Planetary Science Letters·1998· 176 cited
(Table 2) Stable carbon and oxygen isotope ratios of basalts from ODP Hole 148-896A
Figshare·1998Open Access
(Table 1) Element concentrations of fresh glass and altered zone from ODP Hole 148-896A
Figshare·1998Open Access
Evidence of ancient life at 207 m depth in a granitic aquife
Geology·1997· 72 cited
Alteration of the upper oceanic crust by microbial activity
GFF·1996
Microbial Activity in the Alteration of Glass from Pillow Lavas from Hole 896A
1996· 85 citedOpen Access
Textural and chemical effects of bacterial activity on basaltic glass: an experimental approach
Chemical Geology·1995· 182 cited
A textural and chemical study of Icelandic palagonite of varied composition and its bearing on the mechanism of the glass-palagonite transformation
Geochimica et Cosmochimica Acta·1991· 109 cited
Population density and zoning of olivine phenocrysts in tholeiites from Kauai, Hawaii
Contributions to Mineralogy and Petrology·1989· 38 cited
Textural and geochemical changes resulting from alteration (palagonitization) of basic volcanic glasses: Application of SEM and microprobe analyses
Ultramicroscopy·1988· 1 cited
On the relation between dry matter and volume of bacteria
Microbial Ecology·1987· 123 cited
Morphology and content of dry matter and some elements in cells and stalks of <i>Nevskia</i> from an eutrophic lake
Canadian Journal of Microbiology·1986· 7 cited
X-ray microanalytic method for measurement of dry matter and elemental content of individual bacteria
Applied and Environmental Microbiology·1985· 156 citedOpen Access
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Frequent Co-authors

Harald Furnes(16), Ingunn H. Thorseth(12), Terje Torsvik(11), Karlis Muehlenbachs(6), Karlis Muehlenbachs(4), Mikal Heldal(4), Hubert Staudigel(2), S. Norland(1), Svein Norland(1), M. R. Fisk(1), Karsten Pedersen(1), Susanne Ekendahl(1), Eva‐Lena Tullborg(1), InnGun Thorseth(1), Costas Xenophontos(1), Sven Maaløe(1), Dodie E. James(1), Shi Lang(1), Ingunn Hindenes Thorseth(1), Trond H. Torsvik(1)