Christian J. Bjerrum

Christian J. Bjerrum

Professor MSO


  1. Published

    Orbital forcing of climate 1.4 billion years ago

    Zhang, S., Wang, X., Hammarlund, E. U., Wang, H., Canas Portela Costa, M. M., Bjerrum, Christian J., Connelly, James, Zhang, B., Bian, L. & Canfield, D. E., 2015, In: Proceedings of the National Academy of Sciences of the United States of America. 112, 12, p. E1406-E1413 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  2. Published

    Reply to Planavsky et al.: Strong evidence for high atmospheric oxygen levels 1,400 million years ago

    Zhang, S., Wang, X., Wang, H., Bjerrum, Christian J., Hammarlund, E. U., Dahl, Tais Wittchen & Canfield, D. E., 2016, In: National Academy of Sciences. Proceedings. 113, 19, p. E2552-E2553 2 p.

    Research output: Contribution to journalComment/debatepeer-review

  3. Published

    Sufficient oxygen for animal respiration 1,400 million years ago

    Zhang, S., Wang, X., Wang, H., Bjerrum, Christian J., Hammarlund, E. U., Canas Portela Costa, M. M., Connelly, James, Zhang, B., Su, J. & Canfield, D. E., 16 Feb 2016, In: National Academy of Sciences. Proceedings. 113, 7, p. 1731-1736 6 p.

    Research output: Contribution to journalJournal articlepeer-review

  4. Published

    Paleoenvironmental proxies and what the Xiamaling Formation tells us about the mid-Proterozoic ocean

    Zhang, S., Wang, X., Wang, H., Bjerrum, Christian J., Hammarlund, E. U., Haxen, Emma Rysgaard, Wen, H., Ye, Y. & Canfield, D. E., 2019, In: Geobiology. 17, 3, p. 225-246 22 p.

    Research output: Contribution to journalJournal articlepeer-review

  5. Published

    Oxygen, climate and the chemical evolution of a 1400 million year old tropical marine setting

    Wang, X., Zhang, S., Wang, H., Bjerrum, Christian J., Hammarlund, E. U., Haxen, Emma Rysgaard, Su, J., Wang, Y. & Canfield, D. E., 2017, In: American Journal of Science. 317, 8, p. 861-900 40 p.

    Research output: Contribution to journalJournal articlepeer-review

  6. Published

    Cold spells in the Nordic Seas during the early Eocene Greenhouse

    Vickers, M. L., Lengger, S. K., Bernasconi, S. M., Thibault, Nicolas Rudolph, Schultz, B. P., Fernandez, A., Ullmann, C. V., McCormack, P., Bjerrum, Christian J., Rasmussen, J. A., Hougård, Iben Winther & Korte, Christoph, 2020, In: Nature Communications. 11, 1, 12 p., 4713.

    Research output: Contribution to journalJournal articlepeer-review

  7. Published

    Minimum levels of atmospheric oxygen from fossil tree roots imply new plant−oxygen feedback

    Sønderholm, F. & Bjerrum, Christian J., 2021, In: Geobiology. 19, 3, p. 250-260 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  8. Published

    Millenial-scale climate variability controlled by vertical exchange in the ocean

    Shaffer, Gary, Olsen, S. M. & Bjerrum, Christian J., 2001.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  9. Published

    Ocean subsurface warming as a mechanism for coupling Dansgaard-Oeschger climate cycles and ice-rafting events

    Shaffer, Gary, Olsen, S. M. & Bjerrum, Christian J., 2004, In: Geophysical Research Letters. 31, L24202, p. 1-4

    Research output: Contribution to journalJournal articlepeer-review

  10. Published

    Ocean redox change at the Permian-Triassic mass extinction

    Ruhl, M., Bjerrum, Christian J., Canfield, D. E. & Stemmerik, L., 2013, The Permian Strata of Svalbard: Norwegian Polar institute, Tromsø, april 10-12, 2013 Abstracts and Proceedings. Bond, D. & Blomeier, D. (eds.). Norwegian Polar Institute (NPI), p. 20-21 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

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