Sufficient oxygen for animal respiration 1,400 million years ago
Zhang, Shuichang, Wang, Xiaomei, Wang, Huajian, Bjerrum, Christian J., Hammarlund, Emma U., Costa, M. Mafalda, Connelly, James N., Zhang, Baomin, Su, Jin, Canfield, Donald E.
Published in Proceedings of the National Academy of Sciences - PNAS (16.02.2016)
Published in Proceedings of the National Academy of Sciences - PNAS (16.02.2016)
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Journal Article
Towards a quantitative understanding of the late Neoproterozoic carbon cycle
Bjerrum, Christian J, Canfield, Donald E
Published in Proceedings of the National Academy of Sciences - PNAS (05.04.2011)
Published in Proceedings of the National Academy of Sciences - PNAS (05.04.2011)
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Journal Article
Orbital forcing of climate 1.4 billion years ago
Zhang, Shuichang, Wang, Xiaomei, Hammarlund, Emma U., Wang, Huajian, Costa, M. Mafalda, Bjerrum, Christian J., Connelly, James N., Zhang, Baomin, Bian, Lizeng, Canfield, Donald E.
Published in Proceedings of the National Academy of Sciences - PNAS (24.03.2015)
Published in Proceedings of the National Academy of Sciences - PNAS (24.03.2015)
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Journal Article
Cold spells in the Nordic Seas during the early Eocene Greenhouse
Vickers, Madeleine L., Lengger, Sabine K., Bernasconi, Stefano M., Thibault, Nicolas, Schultz, Bo Pagh, Fernandez, Alvaro, Ullmann, Clemens V., McCormack, Paul, Bjerrum, Christian J., Rasmussen, Jan Audun, Hougård, Iben Winther, Korte, Christoph
Published in Nature communications (18.09.2020)
Published in Nature communications (18.09.2020)
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Journal Article
A sulfidic driver for the end-Ordovician mass extinction
Hammarlund, Emma U., Dahl, Tais W., Harper, David A.T., Bond, David P.G., Nielsen, Arne T., Bjerrum, Christian J., Schovsbo, Niels H., Schönlaub, Hans P., Zalasiewicz, Jan A., Canfield, Donald E.
Published in Earth and planetary science letters (15.05.2012)
Published in Earth and planetary science letters (15.05.2012)
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Journal Article
Development of Iron Speciation Reference Materials for Palaeoredox Analysis
Alcott, Lewis J., Krause, Alexander J., Hammarlund, Emma U., Bjerrum, Christian J., Scholz, Florian, Xiong, Yijun, Hobson, Andrew J., Neve, Lesley, Mills, Benjamin J. W., März, Christian, Schnetger, Bernhard, Bekker, Andrey, Poulton, Simon W.
Published in Geostandards and geoanalytical research (01.09.2020)
Published in Geostandards and geoanalytical research (01.09.2020)
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Journal Article
Constructing a model including the cryptic sulfur cycle in Chesapeake Bay requires judicious choices for key processes and parameters
Jin, Rui, Pradal, Marie-Aude, Hantsoo, Kalev, Gnanadesikan, Anand, St-Laurent, Pierre, Bjerrum, Christian J.
Published in MethodsX (01.12.2023)
Published in MethodsX (01.12.2023)
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Journal Article
Massive dissociation of gas hydrate during a Jurassic oceanic anoxic event
Green, Owen R, Jenkyns, Hugh C, Farrimond, Paul, Morgans Bell, Helen S, Hesselbo, Stephen P, Gröcke, Darren R, Bjerrum, Christian J
Published in Nature (London) (27.07.2000)
Published in Nature (London) (27.07.2000)
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Journal Article
Quantifying early marine diagenesis in shallow-water carbonate sediments
Ahm, Anne-Sofie C., Bjerrum, Christian J., Blättler, Clara L., Swart, Peter K., Higgins, John A.
Published in Geochimica et cosmochimica acta (01.09.2018)
Published in Geochimica et cosmochimica acta (01.09.2018)
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Journal Article
New insights into the burial history of organic carbon on the early Earth
Bjerrum, Christian J., Canfield, Donald E.
Published in Geochemistry, geophysics, geosystems : G3 (01.08.2004)
Published in Geochemistry, geophysics, geosystems : G3 (01.08.2004)
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Journal Article
A Mesoproterozoic iron formation
Canfield, Donald E., Zhang, Shuichang, Wang, Huajian, Wang, Xiaomei, Zhao, Wenzhi, Su, Jin, Bjerrum, Christian J., Haxen, Emma R., Hammarlund, Emma U.
Published in Proceedings of the National Academy of Sciences - PNAS (24.04.2018)
Published in Proceedings of the National Academy of Sciences - PNAS (24.04.2018)
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Journal Article
Petrographic carbon in ancient sediments constrains Proterozoic Era atmospheric oxygen levels
Canfield, Don E., van Zuilen, Mark A., Nabhan, Sami, Bjerrum, Christian J., Zhang, Shuichang, Wang, Huajian, Wang, Xiaomei
Published in Proceedings of the National Academy of Sciences - PNAS (08.06.2021)
Published in Proceedings of the National Academy of Sciences - PNAS (08.06.2021)
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Journal Article
No climate paradox under the faint early Sun
ROSING, Minik T, BIRD, Dennis K, SLEEP, Norman H, BJERRUM, Christian J
Published in Nature (London) (01.04.2010)
Published in Nature (London) (01.04.2010)
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Journal Article
A new correlation of Triassic–Jurassic boundary successions in NW Europe, Nevada and Peru, and the Central Atlantic Magmatic Province: A time-line for the end-Triassic mass extinction
Lindström, Sofie, van de Schootbrugge, Bas, Hansen, Katrine H., Pedersen, Gunver K., Alsen, Peter, Thibault, Nicolas, Dybkjær, Karen, Bjerrum, Christian J., Nielsen, Lars Henrik
Published in Palaeogeography, palaeoclimatology, palaeoecology (15.07.2017)
Published in Palaeogeography, palaeoclimatology, palaeoecology (15.07.2017)
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Journal Article
Reply to Planavsky et al.: Strong evidence for high atmospheric oxygen levels 1,400 million years ago
Zhang, Shuichang, Wang, Xiaomei, Wang, Huajian, Bjerrum, Christian J, Hammarlund, Emma U, Dahl, Tais W, Canfield, Donald E
Published in Proceedings of the National Academy of Sciences - PNAS (10.05.2016)
Published in Proceedings of the National Academy of Sciences - PNAS (10.05.2016)
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Journal Article
Paleoenvironmental proxies and what the Xiamaling Formation tells us about the mid‐Proterozoic ocean
Zhang, Shuichang, Wang, Xiaomei, Wang, Huajian, Bjerrum, Christian J., Hammarlund, Emma U., Haxen, Emma R., Wen, Hanjie, Ye, Yuntao, Canfield, Donald E.
Published in Geobiology (01.05.2019)
Published in Geobiology (01.05.2019)
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