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Ulrich Georg Wortmann

Observed names: U. G. Wortmann, U. WORTMANN, U. Wortmann, U.G. Wortmann, Ulrich G. Wortmann, Ulrich Wortmann, Wortmann, Ulrich, Wortmann, Ulrich G, Wortmann, Ulrich G., Wortmann, Ulrich Georg
ORCID: 0000-0001-7854-9173
Observed ORCID: 0000-0001-7854-9173
OpenAlex ID: A5012760221
Hypersulfidic deep biosphere indicates extreme sulfur isotope fractionation during single-step microbial sulfate reduction
2001 · Ulrich G. Wortmann, Stefano M. Bernasconi, et al. · Geology · 305
Paleo-redox conditions during OAE 2 reflected in Demerara Rise sediment geochemistry (ODP Leg 207)
2008 · Almut Hetzel, Michael E. Böttcher, et al. · Palaeogeography Palaeoclimatology Palaeoecology · 220
Ammonium stability and nitrogen isotope fractionations for –NH3(aq)–NH3(gas) systems at 20–70°C and pH of 2–13: Applications to habitability and nitrogen cycling in low-temperature hydrothermal systems
2012 · Long Li, Barbara Sherwood Lollar, et al. · Geochimica et Cosmochimica Acta · 193
Methane hydrate formation in turbidite sediments of northern Cascadia, IODP Expedition 311
2008 · M.E. Torres, A.M. Tréhu, et al. · Earth and Planetary Science Letters · 177
Gas hydrate occurrence from pore water chlorinity and downhole logs in a transect across the northern Cascadia margin (Integrated Ocean Drilling Program Expedition 311)
2008 · A. Malinverno, M. Kastner, et al. · Journal of Geophysical Research Atmospheres · 149
Oxygen isotope biogeochemistry of pore water sulfate in the deep biosphere: Dominance of isotope exchange reactions with ambient water during microbial sulfate reduction (ODP Site 1130)
2007 · Ulrich G. Wortmann, Boris Chernyavsky, et al. · Geochimica et Cosmochimica Acta · 137
Rapid Variability of Seawater Chemistry Over the Past 130 Million Years
2012 · Ulrich G. Wortmann, Adina Paytan · Science · 132
Large-scale ocean deoxygenation during the Paleocene-Eocene Thermal Maximum
2018 · Weiqi Yao, Adina Paytan, et al. · Science · 106
An evaporite-based high-resolution sulfur isotope record of Late Permian and Triassic seawater sulfate
2017 · Stefano M. Bernasconi, Irene Meier, et al. · Geochimica et Cosmochimica Acta · 95
Alpine plate kinematics revisited: The Adria Problem
2001 · Ulrich G. Wortmann, Helmut Weissert, et al. · Tectonics · 82
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Effect of evaporite deposition on Early Cretaceous carbon and sulphur cycling
2007 · Ulrich G. Wortmann, Boris M. Chernyavsky · Nature · 80
Tying platform drowning to perturbations of the global carbon cycle with a δ 13 C Org ‐curve from the Valanginian of DSDP Site 416
2000 · Ulrich G. Wortmann, Helmut Weissert · Terra Nova · 66
Altered carbon cycling and coupled changes in Early Cretaceous weathering patterns: Evidence from integrated carbon isotope and sandstone records of the western Tethys
2004 · Ulrich Georg Wortmann, Jens Olaf Herrle, et al. · Earth and Planetary Science Letters · 62
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
2004 · Michael E. Böttcher, Boo-Keun Khim, et al. · Marine Geology · 50
Twentieth century δ 13 C variability in surface water dissolved inorganic carbon recorded by coralline algae in the northern North Pacific Ocean and the Bering Sea
2011 · B. Williams, J. Halfar, et al. · Biogeosciences · 49
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A revised seawater sulfate oxygen isotope record for the last 4 Myr
2015 · Stefan Markovic, Adina Paytan, et al. · Geochimica et Cosmochimica Acta · 45
A new model of the formation of Pennsylvanian iron carbonate concretions hosting exceptional soft‐bodied fossils in Mazon Creek, Illinois
2016 · S. Cotroneo, J. D. Schiffbauer, et al. · Geobiology · 42
Pleistocene sediment offloading and the global sulfur cycle
2015 · S. Markovic, A. Paytan, et al. · Biogeosciences · 42
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Hydrogen sulfide–hydrates and saline fluids in the continental margin of South Australia
2000 · P.K. Swart, U.G. Wortmann, et al. · Geology · 41
Crystal structure and physical properties of the carbides UAl3C3 and YbAl3C3
1992 · Thorsten-M. Gesing, Rainer Pöttgen, et al. · Journal of Alloys and Compounds · 41
Major‐element analysis of cyclic black shales: Paleoceanographic implications for the Early Cretaceous deep western tethys
1999 · Ulrich G. Wortmann, Reinhard Hesse, et al. · Paleoceanography · 40
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Large-scale stable isotope characterization of a Late Cretaceous dinosaur-dominated ecosystem
2020 · T.M. Cullen, F.J. Longstaffe, et al. · Geology · 39
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Microbially mediated re-oxidation of sulfide during dissimilatory sulfate reduction by Desulfobacter latus
2011 · T. Eckert, B. Brunner, et al. · Geochimica et Cosmochimica Acta · 39
Co‐generation of hydrogen sulfide and methane in marine carbonate sediments
2001 · Richard M. Mitterer, Mitchell J. Malone, et al. · Geophysical Research Letters · 35
Multicentennial record of Labrador Sea primary productivity and sea-ice variability archived in coralline algal barium
2017 · P. Chan, J. Halfar, et al. · Nature Communications · 34
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Works count: 145
Citation count: 2,659
H-index: 27
I10-index: 40
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