2004 - 2008 | M.Sci Geology & Geophysics, Imperial College London. Project advisors: Prof. M. Rehkämper & Dr. M. Schönbächler. M.Sci study area: Are ferromanganese crusts archives of deep water Cd isotope compositions?
2008 - 2012 | D.Phil Earth Sciences, University of Oxford. Thesis advisors: Prof. G.M. Henderson & Prof. R.E.M. Rickaby. D.Phil study area: The Marine Biogeochemistrty of Cadmium and its Isotopes.
Employment history
2012 - Present | Doherty Postdoctoral Scholar, Woods Hole Oceanogrpahic Institution. Project area(s): Trace metal isotope biogeochemistry. In collaboration with Dr. P.J. Lam & Dr. S.G. Nielsen.
Summer 2007 | Exploration Geoscientist, Gold Fields Australia. Graduate exploration geoscientist at the remote Agnew gold mining facility in Western Australia.
Summer 2006 | HSEC Assistant, Rio Tinto Mining & Exploration Ltd. Health, Safety, Environment, & Communities Assistant for Rio Tinto Exploration in Limpopo, South Africa.
Undergraduate teaching experience
In the Classroom: Teaching assistant for Atmosphere & Hydrosphere, Radiogenic Isotope Geochemistry, Sedimentary Geology, & Stable Isotope Geochemistry.
In the field: Demonstrator for Dorset Field Course (Mesozoic stratigraphy), Cornwall Field Course (Palaeozoic tectonics and metamorphism), & Spain Field Course (Miocene tectonics and volcanism).
Peer-reviewed contributions
Xue, Z., M. Rehkämper, T.J. Horner, W. Abouchami, R. Middag, T. van de Flierdt, and H.J.W. de Baar (in revision) Cadmium isotope fractionation in the Southern Ocean.
Abouchami, W., S.J.G. Galer, T.J. Horner, M. Rehkämper, Z. Xue, M. Lambelet, F. Wombacher, M. Schönbächler, M. Gault-Ringold, C. Stirling, A. Shiel, D. Weiss, and P.F. Holdship (2013) A common reference material for cadmium isotope studies – NIST SRM 3108 Cd, Geostand. Geoanal. Res., 37 (1), 5-17, doi:10.1111/j.1751-908X.2012.00175.x.
Horner, T.J., R.E.M. Rickaby, and G.M. Henderson (2011) Isotopic fractionation of cadmium into calcite, Earth Planet. Sci. Lett., 312 (1-2), 243-253, doi:10.1016/j.epsl.2011.10.004.
Rehkämper, M., F. Wombacher, T.J. Horner, and Z. Xue (2011) Natural and anthropogenic Cd isotope variations, in Handbook of Environmental Isotope Geochemistry, Adv. Isot. Geochem., vol. 1, edited by M. Baskaran, Springer-Verlag, doi:10.1007/978-3-642-10637-8_8.
Horner, T. J., M. Schönbächler, M. Rehkämper, S. G. Nielsen, H. Williams, A. N. Halliday, Z. Xue, and J. R. Hein (2010), Ferromanganese crusts as archives of deep water Cd isotope compositions, Geochem. Geophys. Geosyst., 11, Q04001, doi:10.1029/2009GC002987.
Conference Proceedings/Talks Given
Presenting author in bold.
Horner, T.J. (2013) Cadmium isotope fractionation in seawater: A new (palaeo-) proxy for an old problem, Marine Chemistry & Geochemistry Department Seminar, Woods Hole Oceanographic Institution.
Horner, T.J. (2012) Cadmium isotope fractionation in seawater: Driving mechanisms and palaeoceanographic applications, DISCO XXIII.
Horner, T.J., R.B.Y. Lee, G.M. Henderson, and R.E.M. Rickaby (2012) The subcellular isotopic perspective on global Cd cycling, GEOTRACES Workshop: Stable isotopes of biologically important trace metals.
Horner, T.J., G.M. Henderson, R.E.M. Rickaby, and J.F. Adkins (2012) Reconstructing deep-ocean nutrients with paired Cd/Ca and Cd isotopes in deep-sea corals, Goldschmidt 2012.
Rickaby, R.E.M., T.J. Horner, R.B.Y. Lee, G.M. Henderson, and R.J.P. Williams, Tight coupling of life and metals throughout evolution, Goldschmidt 2012. [Paul W. Gast Lecture]
Horner, T.J. (2012) Application of Cd isotopes to Chemical Oceanography: An experimental and proxy approach, Geology, Geochemistry, & Geophysics Seminar Series, National Oceanography Centre (UK). [invited]
Horner, T.J., R.B.Y. Lee, G.M. Henderson and R.E.M. Rickaby (2012) A novel methodology to investigate isotopic biosignatures, EGU General Assembly 2012. [invited]
Horner, T.J., R.B.Y. Lee, G.M. Henderson and R.E.M. Rickaby (2011) Intracellular cadmium isotope fractionation, AGU Fall Meeting 2011.
Horner, T.J., R.E.M. Rickaby, and G.M. Henderson (2011) Isotopic fractionation of cadmium into calcite, Goldschmidt 2011.
Abouchami, W., M. Rehkämper, S.J.G. Galer, T.J. Horner, Z. Xue, G.M. Henderson, F. Wombacher, M. Schönbächler, M. Gault-Ringold, and C. Stirling (2010) In search of a common reference material for cadmium isotope studies, Goldschmidt 2010.
Horner, T.J., M. Schönbächler, M. Rehkämper , H. Williams, S.G. Nielsen, A.N. Halliday, and J.R. Hein (2008) Ferromanganese crusts as archives of deep-water Cd isotope compositions, Goldschmidt 2008.
Horner, T.J., M. Schönbächler, M. Rehkämper, H. Williams, S.G. Nielsen, and J.R. Hein (2008) The Cadmium Isotope Composition of Ferromanganese Crusts, Research in Progress Meeting (Geochemistry Group), The Geological Society of London.
