Ulrich G. Wortmann
Ulrich G. Wortmann
Verified email at utoronto.ca - Homepage
TitleCited byYear
Hypersulfidic deep biosphere indicates extreme sulfur isotope fractionation during single-step microbial sulfate reduction
UG Wortmann, SM Bernasconi, ME Böttcher
Geology 29 (7), 647-650, 2001
2292001
Paleo-redox conditions during OAE 2 reflected in Demerara Rise sediment geochemistry (ODP Leg 207)
A Hetzel, ME Böttcher, UG Wortmann, HJ Brumsack
Palaeogeography, Palaeoclimatology, Palaeoecology 273 (3-4), 302-328, 2009
1552009
Methane hydrate formation in turbidite sediments of northern Cascadia, IODP Expedition 311
ME Torres, AM Trehu, N Cespedes, M Kastner, UG Wortmann, JH Kim, ...
Earth and Planetary Science Letters 271 (1-4), 170-180, 2008
1332008
Gas hydrate occurrence from pore water chlorinity and downhole logs in a transect across the northern Cascadia margin (Integrated Ocean Drilling Program Expedition 311)
A Malinverno, M Kastner, ME Torres, UG Wortmann
Journal of Geophysical Research: Solid Earth 113 (B8), 2008
1142008
Oxygen isotope biogeochemistry of pore water sulfate in the deep biosphere: dominance of isotope exchange reactions with ambient water during microbial sulfate reduction (ODP …
UG Wortmann, B Chernyavsky, SM Bernasconi, B Brunner, ME Böttcher, ...
Geochimica et Cosmochimica Acta 71 (17), 4221-4232, 2007
972007
Alpine plate kinematics revisited: the Adria problem
UG Wortmann, H Weissert, H Funk, J Hauck
Tectonics 20 (1), 134-147, 2001
832001
Rapid variability of seawater chemistry over the past 130 million years
UG Wortmann, A Paytan
Science 337 (6092), 334-336, 2012
812012
Ammonium stability and nitrogen isotope fractionations for NH4+–NH3 (aq)–NH3 (gas) systems at 20–70° C and pH of 2–13: applications to habitability and nitrogen cycling in low …
L Li, BS Lollar, H Li, UG Wortmann, G Lacrampe-Couloume
Geochimica et Cosmochimica Acta 84, 280-296, 2012
652012
Effect of evaporite deposition on Early Cretaceous carbon and sulphur cycling
UG Wortmann, BM Chernyavsky
Nature 446 (7136), 654, 2007
652007
Tying platform drowning to perturbations of the global carbon cycle with a δ13COrg‐curve from the Valanginian of DSDP Site 416
UG Wortmann, H Weissert
Terra Nova 12 (6), 289-294, 2000
592000
Altered carbon cycling and coupled changes in Early Cretaceous weathering patterns: Evidence from integrated carbon isotope and sandstone records of the western Tethys
UG Wortmann, JO Herrle, H Weissert
Earth and Planetary Science Letters 220 (1-2), 69-82, 2004
582004
Major‐element analysis of cyclic black shales: Paleoceanographic implications for the Early Cretaceous deep western tethys
UG Wortmann, R Hesse, W Zacher
Paleoceanography 14 (4), 525-541, 1999
501999
Twentieth Century Delta δC Variability in Surface Water Dissolved Inorganic Carbon Recorded by Coralline Algae in the Northern North Pacific Ocean and the Bering Sea
B Williams, J Halfar, R Steneck, UG Wortmann, S Hetzinger, W Adey, ...
Biogeosciences 8 (1), 165, 2011
422011
Twentieth Century Delta δC Variability in Surface Water Dissolved Inorganic Carbon Recorded by Coralline Algae in the Northern North Pacific Ocean and the Bering Sea
B Williams, J Halfar, R Steneck, UG Wortmann, S Hetzinger, W Adey, ...
Biogeosciences 8 (1), 165, 2011
422011
Microbial sulfate reduction in deep sediments of the Southwest Pacific (ODP Leg 181, Sites 1119–1125): evidence from stable sulfur isotope fractionation and pore water modeling
ME Böttcher, BK Khim, A Suzuki, M Gehre, UG Wortmann, HJ Brumsack
Marine Geology 205 (1-4), 249-260, 2004
412004
Hydrogen sulfide–hydrates and saline fluids in the continental margin of South Australia
PK Swart, UG Wortmann, RM Mitterer, MJ Malone, PL Smart, DA Feary, ...
Geology 28 (11), 1039-1042, 2000
382000
Leg 182 summary: Great Australian Bight Cenozoic cool-water carbonates
DA Feary, AC Hine, MJ Malone
Proceedings of the Ocean Drilling Program, Part A: Initial Reports, 182, 2000
352000
Microbially mediated re-oxidation of sulfide during dissimilatory sulfate reduction by Desulfobacter latus
T Eckert, B Brunner, EA Edwards, UG Wortmann
Geochimica et Cosmochimica Acta 75 (12), 3469-3485, 2011
312011
Co‐generation of hydrogen sulfide and methane in marine carbonate sediments
RM Mitterer, MJ Malone, GA Goodfriend, PK Swart, UG Wortmann, ...
Geophysical research letters 28 (20), 3931-3934, 2001
252001
REMAP: A reaction transport model for isotope ratio calculations in porous media
BM Chernyavsky, UG Wortmann
Geochemistry, Geophysics, Geosystems 8 (2), 2007
192007
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