Tais Wittchen Dahl

Tais Wittchen Dahl

Associate Professor

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    ORCID: 0000-0003-4629-8036

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    1. Published

      Uranium isotopes in marine carbonates as a global ocean paleoredox proxy: A critical review

      Zhang, F., Lenton, T. M., del Rey, Álvaro, Romaniello, S. J., Chen, X., Planavsky, N. J., Clarkson, M. O., Dahl, Tais Wittchen, Lau, K. V., Wang, W., Li, Z., Zhao, M., Isson, T., Algeo, T. J. & Anbar, A. D., 2020, In: Geochimica et Cosmochimica Acta. 287, p. 27-49

      Research output: Contribution to journal › Journal article › Research › peer-review

    2. Published

      Uranium isotopes distinguish two geochemically distinct stages during the later Cambrian SPICE event

      Dahl, Tais Wittchen, Boyle, R. A., Canfield, D. E., Connelly, James, Gill, B. C., Lenton, T. M. & Bizzarro, Martin, 1 Sep 2014, In: Earth and Planetary Science Letters. 401, p. 313-326 14 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    3. Published

      Uranium isotope evidence for extensive shallow water anoxia in the early Tonian oceans

      Zhang, F., Stockey, R. G., Xiao, S., Shen, S., Dahl, Tais Wittchen, Wei, G., Cao, M., Li, Z., Kang, J., Cui, Y., Anbar, A. D. & Planavsky, N. J., 2022, In: Earth and Planetary Science Letters. 583, 12 p., 117437.

      Research output: Contribution to journal › Journal article › Research › peer-review

    4. Published

      Uranium isotope compositions of biogenic carbonates – Implications for U uptake in shells and the application of the paleo-ocean oxygenation proxy

      Livermore, B. D., Dahl, Tais Wittchen, Bizzarro, Martin & Connelly, James, 15 Oct 2020, In: Geochimica et Cosmochimica Acta. 287, p. 50-64 15 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    5. Published

      Untangling the diagenetic history of uranium isotopes in marine carbonates: A case study tracing the δ238U composition of late Silurian oceans using calcitic brachiopod shells

      del Rey, Álvaro, Havsteen, J. C., Bizzarro, Martin & Dahl, Tais Wittchen, 2020, In: Geochimica et Cosmochimica Acta. 287, p. 93-110

      Research output: Contribution to journal › Journal article › Research › peer-review

    6. Published

      Two distinct episodes of marine anoxia during the Permian-Triassic crisis evidenced by uranium isotopes in marine dolostones

      Zhang, F., Shen, S. Z., Cui, Y., Lenton, T. M., Dahl, Tais Wittchen, Zhang, H., Zheng, Q. F., Wang, W., Krainer, K. & Anbar, A. D., 2020, In: Geochimica et Cosmochimica Acta. 287, p. 165-179

      Research output: Contribution to journal › Journal article › Research › peer-review

    7. Turbulent Mixing of Metal and Silicate during Planet Accretion – and interpretation of the Hf-W chronometer

      Dahl, Tais Wittchen & Stevenson, D., 2010, In: Earth and Planetary Science Letters. 295, p. 177-186

      Research output: Contribution to journal › Journal article › Research › peer-review

    8. Turbulent Mixing during Planet Accretion and Core Formation: Cand. Sc. Thesis, geophysics, University of Copenhagen

      Dahl, Tais Wittchen, 2005, Turbulent Mixing during Planet Accretion and Core Formation.

      Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

    9. Published

      Tracing euxinia by molybdenum concentrations in sediments using handheld X-ray fluorescence spectroscopy (HHXRF)

      Dahl, Tais Wittchen, Ruhl, M., Hammarlund, E. U., Canfield, D. E., Rosing, Minik Thorleif & Bjerrum, Christian J., 18 Dec 2013, In: Chemical Geology. 360-361, p. 241-251 11 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    10. Published

      The impacts of land plant evolution on Earth's climate and oxygenation state – An interdisciplinary review

      Dahl, Tais Wittchen & Arens, S. K. M., 5 Aug 2020, In: Chemical Geology. 547, 25 p., 119665.

      Research output: Contribution to journal › Journal article › Research › peer-review

    11. The human impact on natural rock reserves using basalt, anorthosite, and carbonates as raw materials in insulation products

      Dahl, Tais Wittchen, Clausen, A. U. & Hansen, P. B., 2011, In: International Geology Review. 53, p. 894-904

      Research output: Contribution to journal › Journal article › Research

    12. Published

      The behavior of molybdenum and its isotopes across the chemocline and in the sediments of sulfidic Lake Cadagno, Switzerland

      Dahl, Tais Wittchen, Anbar, A. D., Gordon, G. W., Rosing, Minik Thorleif, Frei, Robert & Canfield, D. E., Jan 2010, In: Geochimica et Cosmochimica Acta. 74, 1, p. 144-163 20 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    13. Published

      The Sedimentary Geochemistry and Paleoenvironments Project

      Farrell, U. C., Samawi, R., Anjanappa, S., Klykov, R., Adeboye, O. O., Agic, H., Ahm, A-S. C., Boag, T. H., Bowyer, F., Brocks, J. J., Brunoir, T. N., Canfield, D. E., Chen, X., Cheng, M., Clarkson, M. O., Cole, D. B., Cordie, D. R., Crockford, P. W., Cui, H., Dahl, T. W. & 88 others, Mouro, L. D., Dewing, K., Dornbos, S. Q., Drabon, N., Dumoulin, J. A., Emmings, J. F., Endriga, C. R., Fraser, T. A., Gaines, R. R., Gaschnig, R. M., Gibson, T. M., Gilleaudeau, G. J., Gill, B. C., Goldberg, K., Guilbaud, R., Halverson, G. P., Hammarlund, E. U., Hantsoo, K. G., Henderson, M. A., Hodgskiss, M. S. W., Horner, T. J., Husson, J. M., Johnson, B., Kabanov, P., Brenhin Keller, C., Kimmig, J., Kipp, M. A., Knoll, A. H., Kreitsmann, T., Kunzmann, M., Kurzweil, F., LeRoy, M. A., Li, C., Lipp, A. G., Loydell, D. K., Lu, X., Macdonald, F. A., Magnall, J. M., Mänd, K., Mehra, A., Melchin, M. J., Miller, A. J., Mills, N. T., Mwinde, C. N., O'Connell, B., Och, L. M., Ossa Ossa, F., Pages, A., Paiste, K., Partin, C. A., Peters, S. E., Petrov, P., Playter, T. L., Plaza-Torres, S., Porter, S. M., Poulton, S. W., Pruss, S. B., Richoz, S., Ritzer, S. R., Rooney, A. D., Sahoo, S. K., Schoepfer, S. D., Sclafani, J. A., Shen, Y., Shorttle, O., Slotznick, S. P., Smith, E. F., Spinks, S., Stockey, R. G., Strauss, J. V., Stüeken, E. E., Tecklenburg, S., Thomson, D., Tosca, N. J., Uhlein, G. J., Vizcaino, M. N., Wang, H., White, T., Wilby, P. R., Woltz, C. R., Wood, R. A., Xiang, L., Yurchenko, I. A., Zhang, T., Planavsky, N. J., Lau, K. V., Johnston, D. T. & Sperling, E. A., 2021, In: Geobiology. 19, 6, p. 545-556 12 p.

      Research output: Contribution to journal › Editorial › Research › peer-review

    14. Published

      Synchronizing rock clocks in the late Cambrian

      Zhao, Zhengfu, Thibault, Nicolas Rudolph, Dahl, Tais Wittchen, Schovsbo, N. H., Sørensen, A. L., Rasmussen, Christian Mac Ørum & Nielsen, Arne Thorshøj, 2022, In: Nature Communications. 13, 11 p., 1990.

      Research output: Contribution to journal › Journal article › Research › peer-review

    15. Published

      Synchronizing Rock Clocks in the Cambrian

      Zhao, Zhengfu, Thibault, Nicolas Rudolph, Dahl, Tais Wittchen, Schovsbo, N. H., Sørensen, A. L., Rasmussen, Christian Mac Ørum & Nielsen, Arne Thorshøj, 2021. 1 p.

      Research output: Contribution to conference › Conference abstract for conference › Research

    16. Published

      Sulfidic anoxia in the oceans during the Late Ordovician mass extinctions – insights from molybdenum and uranium isotopic global redox proxies

      Dahl, Tais Wittchen, Hammarlund, E. U., Rasmussen, Christian Mac Ørum, Bond, D. P. G. & Canfield, D. E., 2021, In: Earth-Science Reviews. 220, 14 p., 103748.

      Research output: Contribution to journal › Review › Research › peer-review

    17. Published

      Substantial incorporation of isotopically heavy reduced U species into marine carbonate sediments

      Yuan, Y., Chen, T., Zhang, F., Liu, Y., Xiong, G., Wei, G., Dahl, Tais Wittchen, Yan, W., Ling, H., Cheng, H. & Shen, S., 2023, In: Geochimica et Cosmochimica Acta. 358, p. 27-37 11 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    18. 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 journal › Journal article › Research › peer-review

    19. 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 journal › Letter › Research › peer-review

    20. 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 journal › Comment/debate › Research › peer-review

    21. 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 journal › Comment/debate › Research › peer-review

    22. 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 journal › Journal article › Research › peer-review

    23. 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 journal › Journal article › Research › peer-review

    24. 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 journal › Journal article › Research › peer-review

    25. Planetkort lærervejledning

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

      Research output: Other contribution › Education

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