Tais Wittchen Dahl

Tais Wittchen Dahl

Associate Professor

Member of:


    1. Published

      A dynamic local-scale vegetation model for lycopsids (LYCOm v1.0)

      Halder, S., Arens, S. K. M., Jensen, K., Dahl, Tais Wittchen & Porada, P., 2022, In: Geoscientific Model Development. 15, 5, p. 2325-2343

      Research output: Contribution to journalJournal articleResearchpeer-review

    2. A sulfidic driver for the end-Ordovician mass extinction

      Hammarlund, E. U., Dahl, Tais Wittchen, Harper, D. A. T., Bond, D. P. G., Nielsen, A. T., Bjerrum, C. J., Schovsbo, N. H., Schoenlaub, H. P., Zalasiewicz, J. A. & Canfield, D. E., Apr 2012, In: Earth and Planetary Science Letters. 331-332, p. 128-139

      Research output: Contribution to journalJournal articleResearchpeer-review

    3. Published

      Anomalous marine calcium cycle linked to carbonate factory change after the Smithian Thermal Maximum (Early Triassic)

      Zhao, H., Dahl, Tais Wittchen, Chen, Z., Algeo, T. J., Zhang, L., Liu, Y., Hu, Z. & Hu, Z., 2020, In: Earth-Science Reviews. 211, 16 p., 103418.

      Research output: Contribution to journalReviewResearchpeer-review

    4. Published

      Astronomically forced climate change in the late Cambrian

      Sørensen, A. L., Nielsen, Arne Thorshøj, Thibault, Nicolas Rudolph, Zhao, Zhengfu, Schovsbo, N. H. & Dahl, Tais Wittchen, 1 Oct 2020, In: Earth and Planetary Science Letters. 548, 13 p., 116475.

      Research output: Contribution to journalJournal articleResearchpeer-review

    5. Published

      Atmosphere-ocean oxygen and productivity dynamics during early animal radiations

      Dahl, Tais Wittchen, Connelly, James, Li, D., Kouchinsky, A., Gill, B. C., Porter, S., Maloof, A. C. & Bizzarro, Martin, 2019, In: Proceedings of the National Academy of Sciences of the United States of America. 116, 39, p. 19352-19361 10 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    6. Published

      Bacterial natural transformation by highly fragmented and damaged DNA

      Overballe-Petersen, S., Harms, K., Orlando, L. A. A., Moreno Mayar, J. Víctor, Rasmussen, Simon, Dahl, Tais Wittchen, Rosing, Minik Thorleif, Poole, A. M., Sicheritz-Ponten, T., Brunak, S., Inselmann, S., de Vries, J., Wackernagel, W., Pybus, O. G., Nielsen, Rasmus, Johnsen, P. J., Nielsen, K. M. & Willerslev, Eske, 3 Dec 2013, In: Proceedings of the National Academy of Sciences of the United States of America. 110, 49, p. 19860–19865 6 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    7. Published

      Bioturbation and directionality in Earth's carbon isotope record across the Neoproterozoic-Cambrian transition

      Boyle, R. A., Dahl, Tais Wittchen, Bjerrum, Christian J. & Canfield, D. E., 2018, In: Geobiology. 16, 3, p. 252-278 27 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    8. Published

      Brief oxygenation events in locally anoxic oceans during the Cambrian solves the animal breathing paradox

      Dahl, Tais Wittchen, Siggaard-Andersen, Marie-Louise, Schovsbo, E. H., Persson, Daniel Pergament, Husted, Søren, Hougård, Iben Winther, Dickson, A. J., Kjær, Kurt H. & Nielsen, Arne Thorshøj, 2019, In: Scientific Reports. 9, 9 p., 11669.

      Research output: Contribution to journalJournal articleResearchpeer-review

    9. Published

      Chemostratigraphy: using elements and isotopes to identify, interpret and correlate events in strata

      Shields, G. A., Edgar, K. M., Ratcliffe, K. T. & Dahl, Tais Wittchen, 2022, Deciphering Earth's History: the Practice of Stratigraphy. Coe, A. L. (ed.). Geological Society, p. 101-120 (Geoscience in Practice).

      Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

    10. Combining sedimentological, trace metal (Mn, Mo) and molecular evidence for reconstructing past water-column redox conditions: the example of meromictic Lake Cadagno (Swiss Alps)

      Wirth, S. B., Gilli, A., Niemann, H., Dahl, Tais Wittchen, Ravasi, D., Hamann, Y., Peduzzi, R., Peduzzi, S., Tonolla, M., Lehmann, M. F. & Anselmetti, F. S., 2013, In: Geochimica et Cosmochimica Acta. 120, p. 220-238 19 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    11. Published

      Comparison of Ediacaran platform and slope δ238U records in South China: Implications for global-ocean oxygenation and the origin of the Shuram Excursion

      Cao, M., Daines, S. J., Lenton, T. M., Cui, H., Algeo, T. J., Dahl, Tais Wittchen, Shi, W., Chen, Z. Q., Anbar, A. & Zhou, Y. Q., 2020, In: Geochimica et Cosmochimica Acta. 287, p. 111-124 14 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    12. Published

      Constraining marine anoxia under the extremely oxygenated Permian atmosphere using uranium isotopes in calcitic brachiopods and marine carbonates

      Wang, W., Zhang, F., Shen, S., Bizzarro, Martin, Garbelli, C., Zheng, Q., Zhang, Y., Yuan, D., Shi, Y., Cao, M. & Dahl, Tais Wittchen, 2022, In: Earth and Planetary Science Letters. 594, 15 p., 117714.

      Research output: Contribution to journalJournal articleResearchpeer-review

    13. Published

      Curation and Analysis of Global Sedimentary Geochemical Data to Inform Earth History

      Mehra, A., Keller, C. B., Zhang, T., Tosca, N. J., McLennan, S. M., Sperling, E., Farrell, U., Brocks, J., Canfield, D., Cole, D., Crockford, P., Cui, H., Dahl, T. W., Dewing, K., Emmings, J. F., Gaines, R. R., Gibson, T., Gilleaudeau, G. J., Guilbaud, R., Hodgskiss, M. & 17 others, Jarrett, A., Kabanov, P., Kunzmann, M., Li, C., Loydell, D. K., Lu, X., Miller, A., Mills, N. T., Mouro, L. D., O'Connell, B., Peters, S. E., Poulton, S., Ritzer, S. R., Smith, E., Wilby, P., Woltz, C. & Strauss, J. V., 2021, In: GSA Today. 31, 5, p. 4-9 6 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    14. Published

      Devonian rise in atmospheric oxygen correlated to the radiations of terrestrial plants and large predatory fish

      Dahl, Tais Wittchen, Hammarlund, E. U., Anbar, A. D., Bond, D. P. G., Gill, B. C., Gordon, G. W., Knoll, A. H., Nielsen, Arne Thorshøj, Schovsbo, N. H. & Canfield, D. E., 2010, In: National Academy of Sciences. Proceedings. 107, 42, p. 17911-17915 5 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    15. Do large predatory fish track ocean oxygenation?

      Dahl, Tais Wittchen & Hammarlund, E. U., 2011, In: Communicative & Integrative Biology. 4, 1, p. 92-94 3 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    16. Published

      Dynamic oceanic redox conditions across the late Cambrian SPICE event constrained by molybdenum and uranium isotopes

      Zhao, Zhengfu, Pang, X., Zou, C., Dickson, A. J., Basu, A., Guo, Z., Pan, S., Nielsen, Arne Thorshøj, Schovsbo, N. H., Jing, Z. & Dahl, Tais Wittchen, 2023, In: Earth and Planetary Science Letters. 604, 13 p., 118013.

      Research output: Contribution to journalJournal articleResearchpeer-review

    17. Published

      Earliest land plants created modern levels of atmospheric oxygen

      Lenton, T. M., Dahl, Tais Wittchen, Daines, S. J., Mills, B. J. W., Ozaki, K., Saltzman, M. R. & Porada, P., 2016, In: National Academy of Sciences. Proceedings. 113, 35, p. 9704-9709 6 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    18. Published

      Environmental and trilobite diversity changes during the middle-late Cambrian SPICE event

      Zhang, L., Algeo, T. J., Zhao, L., Dahl, Tais Wittchen, Chen, Z. Q., Zhang, Z., Poulton, S. W., Hughes, N. C., Gou, X. & Li, C., 2024, In: Geological Society of America. Bulletin. 136, 1-2, p. 810-828 19 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    19. Published

      Estimating ancient seawater isotope compositions and global ocean redox conditions by coupling the molybdenum and uranium isotope systems of euxinic organic-rich mudrocks

      Lu, X., Dahl, Tais Wittchen, Zheng, W., Wang, S. & Kendall, B., 2020, In: Geochimica et Cosmochimica Acta. 290, p. 76-103 28 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    20. Published

      Evidence of molybdenum association with particulate organic matter under sulfidic conditions

      Dahl, Tais Wittchen, Chappaz, A., Hoek, J. B., McKenzie, C. J., Svane, S. & Canfield, D. E., 2017, In: Geobiology. 15, 2, p. 311-323 13 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    21. Published

      Extensive marine anoxia associated with the Late Devonian Hangenberg Crisis

      Zhang, F., Dahl, Tais Wittchen, Lenton, T. M., Luo, G., Shen, S. Z., Algeo, T. J., Planavsky, N., Liu, J., Cui, Y., Qie, W., Romaniello, S. J. & Anbar, A. D., 2020, In: Earth and Planetary Science Letters. 533, 11 p., 115976.

      Research output: Contribution to journalJournal articleResearchpeer-review

    22. Flere kvinder giver fair play

      Lundby, Alicia, Gerken, M., Quist, Pia, Bille, Mikkel & Dahl, Tais Wittchen, 29 May 2015, In: Weekendavisen.

      Research output: Contribution to journalContribution to newspaper - Feature articleCommunication

    23. Published

      Good golly, why moly? The stable isotope geochemistry of molybdenum

      Kendall, B., Dahl, Tais Wittchen & Anbar, A. D., 2017, In: Reviews in Mineralogy and Geochemistry. 82, 1, p. 683-732 50 p.

      Research output: Contribution to journalReviewResearchpeer-review

    24. Published

      High-resolution carbon isotope chemostratigraphy of the middle Cambrian to lowermost Ordovician in southern Scandinavia: Implications for global correlation

      Zhao, Zhengfu, Ahlberg, P., Thibault, Nicolas Rudolph, Dahl, Tais Wittchen, Schovsbo, N. H. & Nielsen, Arne Thorshøj, 2022, In: Global and Planetary Change. 209, 13 p., 103751.

      Research output: Contribution to journalJournal articleResearchpeer-review

    25. Published

      Hvordan når kvinderne toppen?

      Lundby, Alicia, Gerken, M., Jess, T. & Dahl, Tais Wittchen, 5 Nov 2013, In: Berlingske Tidende.

      Research output: Contribution to journalContribution to newspaper - Comment/debateCommunication

    26. Published

      Identifying remnants of early Earth

      Dahl, Tais Wittchen, 2016, In: Science. 352, 6287, p. 768-769 2 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    27. Published

      Land plant evolution and global erosion rates: Reply to Neil S. Davies and William J. McMahon

      Dahl, Tais Wittchen & Arens, S. K. M., 2021, In: Chemical Geology. 573, 2 p., 120167.

      Research output: Contribution to journalComment/debateResearchpeer-review

    28. Published

      Land plant evolution and global erosion rates: Reply to Neil S. Davies and William J. McMahon

      Dahl, Tais Wittchen & Arens, S. K. M., 5 Jul 2021, In: Chemical Geology. 573, 120167.

      Research output: Contribution to journalComment/debateResearchpeer-review

    29. Published

      Low atmospheric CO2 levels before the rise of forested ecosystems

      Dahl, Tais Wittchen, Harding, Magnus August Ravn, Brugger, J., Feulner, G., Norrman, K., Lomax, B. H. & Junium, C. K., 2022, In: Nature Communications. 13, 10 p., 7616.

      Research output: Contribution to journalJournal articleResearchpeer-review

    30. Published

      Mid-Ludfordian uranium isotope records distinguish the role of expansive marine anoxia in global carbon cycle dynamics during the late Silurian Lau/Kozlowskii bioevent

      del Rey, Álvaro, Frýda, J., Calner, M., Frýdová, B., Zhang, F., Wang, C., Planavsky, N. & Dahl, Tais Wittchen, 2023, In: Global and Planetary Change. 229, 104248.

      Research output: Contribution to journalJournal articleResearchpeer-review

    31. Published

      Mo isotope variations in meromictic Lake Cadagno

      Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Frei, Robert & Canfield, D. E., 2008, In: Geochim. Cosmochim.. Acta 71, Supplement 1, p. p. A196

      Research output: Contribution to journalConference abstract in journalResearch

    32. Published

      Molybdenum evidence for expansive sulfidic water masses in similar ∼ 750 Ma oceans

      Dahl, Tais Wittchen, Canfield, D. E., Rosing, Minik Thorleif, Frei, Robert, Gordon, G. W., Knoll, A. H. & Anbar, A. D., 2011, In: Earth and Planetary Science Letters. 311, 3-4, p. 264-274

      Research output: Contribution to journalJournal articleResearchpeer-review

    33. Published

      Molybdenum isotope fractionation and speciation in a euxinic lake—Testing ways to discern isotope fractionation processes in a sulfidic setting

      Dahl, Tais Wittchen & Wirth, S. B., 5 Jun 2017, In: Chemical Geology. 460, p. 84-92 9 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    34. Published

      Molybdenum isotope variations in a redox-stratified lake: Removal mechanism and preservation in euxinic sediments

      Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Rosing, Minik Thorleif, Frei, Robert & Canfield, D. E., 2008, Geochim. Cosmochim. Acta,. Vol. 72/12S. p. A194

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

    35. Molybdenum reduction in a sulfidic lake: evidence from X-ray absorption fine–structure spectroscopy and implications for the Mo paleoproxy

      Dahl, Tais Wittchen, Chappaz, A., Fitts, J. P. & Lyons, T. W., Feb 2013, In: Geochimica et Cosmochimica Acta. 103, p. 213-231 19 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    36. Published

      No evidence for a volcanic trigger for late Cambrian carbon-cycle perturbations

      Frieling, J., Mather, T. A., Fendley, I. M., Jenkyns, H. C., Zhao, Zhengfu, Dahl, Tais Wittchen, Bergquist, B. A., Cheng, K., Nielsen, Arne Thorshøj & Dickson, A. J., 2024, In: Geology. 52, 1, p. 12-16 5 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    37. Published

      Ocean redox conditions between the snowballs: geochemical constraints from Arena Formation, East Greenland

      Scheller, E. L., Dickson, A. J., Canfield, D. E., Korte, Christoph, Kristiansen, K. K. & Dahl, Tais Wittchen, 1 Dec 2018, In: Precambrian Research. 319, p. 173-186 14 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    38. Published

      Paired U and Mo isotope evidence for pervasive anoxia in the Cryogenian early interglacial ocean

      Pan, W., Cao, M., Du, Y., Cheng, M., Zhou, Y. Q., Algeo, T. J., Zhao, M. Y., Thibault, Nicolas Rudolph, Li, C., Wei, G. Y. & Dahl, Tais Wittchen, 2021, In: Precambrian Research. 361, 13 p., 106244.

      Research output: Contribution to journalJournal articleResearchpeer-review

    39. Planetkort: Bokssæt

      Dahl, Tais Wittchen, Leer, K., Pagh, M. & Jensen, F. (ed.), May 2011, Forlaget Meloni, Odense : Meloni.

      Research output: Other contributionEducation

    40. Published

      Planetkort

      Dahl, Tais Wittchen, 2007, Danmark

      Research output: Other contributionEducation

    41. Planetkort: - et nervepirrende undervisningsspil om solsystemet

      Dahl, Tais Wittchen, 2007

      Research output: Non-textual form2D/3D (psysical products)Education

    42. Planetkort lærervejledning

      Jensen, F., Dahl, Tais Wittchen, Leer, K. & Pagh, M., 2008, Geografforlaget.

      Research output: Other contributionEducation

    43. Published

      Precise and accurate δ13C analysis of rock samples using Flash Combustion–Cavity Ring Down Laser Spectroscopy

      Balslev-Clausen, D. M., Dahl, Tais Wittchen, Saad, N. & Rosing, Minik Thorleif, 1 Apr 2013, In: Journal of Analytical Atomic Spectrometry. 28, 4, p. 516-523 8 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    44. Published

      Redox dynamics of later Cambrian oceans

      Gill, B. C., Dahl, Tais Wittchen, Hammarlund, E. U., LeRoy, M. A., Gordon, G. W., Canfield, D. E., Anbar, A. D. & Lyons, T. W., 2021, In: Palaeogeography, Palaeoclimatology, Palaeoecology. 581, 15 p., 110623.

      Research output: Contribution to journalJournal articleResearchpeer-review

    45. Published

      Reorganisation of Earth's biogeochemical cycles briefly oxygenated the oceans 520 Myr ago

      Dahl, Tais Wittchen, Connelly, James, Kouchinsky, A., Gill, B. C., Månsson, S. F. & Bizzarro, Martin, 15 Jun 2017, In: Geochemical Perspectives Letters. 3, 2, p. 210-220 11 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    46. Reply to Butterfield: The Devonian radiation of large predatory fish coincided with elevated atmospheric oxygen levels

      Dahl, Tais Wittchen, Hammarlund, E., Anbar, A., Bond, D., Gill, B. C., Gordon, G., Knoll, A. H. & Canfield, D. E., 2011, In: Proceedings of the National Academy of Sciences of the United States of America. 108, 9, p. E29

      Research output: Contribution to journalComment/debateResearchpeer-review

    47. 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/debateResearchpeer-review

    48. Published

      Stabilization of the coupled oxygen and phosphorus cycles by the evolution of bioturbation

      Boyle, R., Dahl, Tais Wittchen, Dale, A. W., Shields-Zhou, G. A., Zhu, M., Brasier, M. D., Canfield, D. E. & Lenton, T. M., 2014, In: Nature Geoscience. 7, 9, p. 671-676 6 p.

      Research output: Contribution to journalLetterResearchpeer-review

    49. Published

      Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event

      del Rey, Álvaro, Rasmussen, Christian Mac Ørum, Calner, M., Wu, R., Asael, D. & Dahl, Tais Wittchen, 2022, In: Communications Earth & Environment. 3, 7 p., 220.

      Research output: Contribution to journalJournal articleResearchpeer-review

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