Mailing address: PO Box 208109, New Haven CT 06520-8109
Street address: 210 Whitney Ave., New Haven CT 06511
My research broadly focuses on the evolution of global biogeochemical cycles through Earth’s early history. I integrate field, petrographic, geochemical and laboratory experimentation with numerical models, in order to test hypothesis of global change in deep time that concern the early co-evolution of microbial life and its environment. One central goal of my work is to reconstruct ancient ecosystems by fingerprinting geochemical signals that are unique to specific metabolisms within ancient sedimentary rocks. Another critical theme of my research is to better understand both the physical and chemical mechanisms that give rise to planetary climate stability, particularly focusing on the portion of Earth’s thermostat involving authigenic processes (biotically and abiotically mediated) that occur within marine sedimentary porewater systems during early diagenesis.
2019 Ph.D., Geochemistry, Yale University
2014 BS (Hons), Geology, University of St Andrews
2019-Present Faculty Member, University of Waikato (Tauranga)
2014-2019 Research/Teaching Assistant, Yale University
2012-2014 Research Assistant, University of St Andrews, Scotland
2009-2011 3rd Sergeant, Underwater Demolition Team, Singapore Naval Diving Unit
2004-2009 National Sailing Squad, Singapore
In the pipeline
10. Foster, W.J., Ayzel, G., Isson, T.T., Mutti, M., and Aberhan, M. (in review) Ocean life on the brink: the consequences of heating, suffocating, and acidifying. Science Advances
9. Syverson, D.D., Reinhard, C.T., Isson, T.T., Holstege, C., Katchinoff, J., Etschmann, B., Brugger, J., and Planavsky N.J. (in review) Anoxic weathering of mafic oceanic crust promotes atmospheric oxygenation. Nature Geoscience.
8. Planavsky, N.J., Bolton, E.W, Isson, T.T., Reinhard, C.T., and Zhang, S. (in review) Organic and carbonate carbon burial through Earth’s history. Science Advances.
7. Isson, T.T., Planavsky, N.J., Coogan, L., Stewart, E., Ague, J.J., Bolton, E.W., Zhang, S., McKenzie, N.R., and Kump. L.R., (in review) Evolution of the Global Carbon Cycle and Climate Regulation on Earth. Global Biogeochemical Cycles.
6. Stewart, E., Ague, J., Ferry, J.M., Schffries, C.M., Tao, R.B., Isson, T.T., and Planavsky, N.J. (accepted) Carbonation and decarbonation reactions: implications for planetary habitability. American Mineralogist.
5. Isson T.T. and Planavsky, N.J. (2018) Reverse weathering as a long term stabilizer of marine pH and planetary climate. Nature. 560(7719), 471.
4. Planavsky, N.J., Cole, D.B, Isson, T.T., Reinhard, C.T., Crockford, P.W., Sheldon, N.D., and Lyons, W.T. (2018) Tracking Proterozoic Oxygenation. Emerging Topics in Life Sciences. 10.1042/ETLS20170161
3. Hardisty, D., Lyons, T., Riedinger, N., Isson, T.T., Owens, J., Aller, R.C., Rye, D., Planavsky, N.J., Reinhard, C., Gill, B., Masterson, A.L., Asael, D. and Johnston D. (2018) An evaluation of sedimentary molybdenum and iron as proxies for pore fluid paleoredox conditions. American Journal of Science. 318(5), 527-556.
2. Isson T.T., Love, G., Dupont, C., Reinhard, C.T., Zumberge, A., Asael, D., Gueguen, B., McCrow, J., Gill, B., Owens, J., Rainbird, R., Rooney, A., Zhao, M., Stüeken, E.E., Konhauser, K.O., John, S.G., Lyons, T.W. and Planavsky, N.J. (2018) Tracking the Rise of Eukaryotes to Ecological Dominance with Zinc Isotopes. Geobiology. 16, 341-352.
1. Planavsky, N.J., Slack, J.F., Cannon, W.F., O’Connell, B., Isson, T.T., Asael, D., Jackson, J.C., Hardisty, D.S., Lyons, T.W. and Bekker, A. (2018) Evidence for episodic oxygenation in a weakly redox-buffered deep mid- Proterozoic ocean. Chemical Geology. 483, 581-594.