Woods Hole Oceanographic Institution

Tristan J. Horner

Curriculum Vitae


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 |  Postdoctoral Scholar then Postdoctoral Fellow, Woods Hole Oceanogrpahic Institution. Project area(s): Trace metal isotope biogeochemistry.

2007 | Exploration Geoscientist, Gold Fields Australia. Graduate exploration geoscientist at the remote Agnew gold mining facility in Western Australia.

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.

Tutor for Stable Isotope Geochemistry & UNIQ Earth Science Summer School.

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

Nielsen, S.G., J.D. Owens, and T.J. Horner (in press) Analysis of high-precision vanadium isotope ratios by medium resolution MC-ICP-MS,  J. Anal. At. Spectrom., doi:10.1039/C5JA00397K.

Horner, T.J., C.W. Kinsley, and S.G. Nielsen (2015) Barium-isotopic fractionation in seawater mediated by barite cycling and oceanic circulationEarth Planet. Sci. Lett., 430, 511-522, doi:10.1016/j.epsl.2015.07.027.

Horner, T.J., H.M. Williams, J.R. Hein, M.A. Saito, K.W. Burton, A.N. Halliday, and S.G. Nielsen (2015) Persistence of deeply sourced iron in the Pacific Ocean, Proc. Natl. Acad. Sci., 112(5), 1292-1297, doi:10.1073/pnas.1420188112.

Georgiev, S.V., T.J. Horner, H.J. Stein, J.L. Hannah, B. Bingen, and M. Rehkämper (2015) Cadmium-isotopic evidence for increasing primary productivity during the Late Permian anoxic event, Earth Planet. Sci. Lett., 410, 84-96, doi:10.1016/j.epsl.2014.11.010.

Hermoso, M. T.J. Horner, F. Minoletti, and R.E.M. Rickaby (2014) Constraints on the vital effect in coccolithophore and dinoflagellate calcite by oxygen isotopic modification of seawater, Geochim. Cosmochim. Acta, 141, 612-627, doi:10.1016/j.gca.2014.05.002.

Xue, Z., M. Rehkämper, T.J. Horner, W. Abouchami, R. Middag, T. van de Flierdt, and H.J.W. de Baar (2013) Cadmium isotope variations in the Southern OceanEarth Planet. Sci. Lett., 382, 161-172, doi:10.1016/j.epsl.2013.09.014.

Horner, T.J., R.B.Y. Lee, R.E.M. Rickaby, and G.M. Henderson (2013) Nonspecific uptake and homeostasis drive the oceanic cadmium cycle, Proc. Natl. Acad. Sci., 110 (7), 2500-2505, doi:10.1073/pnas.1213857110. See also: Comment by F.M.M Morel and Reply by T.J. Horner et al.

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.

Invited contributions

Horner, T.J., S.N. Burgess, Y.-T. Hsieh, P.J. Lam, and S.G. Nielsen (2014) The barium-isotopic composition of the pelagic barite flux, Goldschmidt 2014, Sacramento CA.

Horner, T.J. (2014) Marine Biogeochemical Cycling of the Micronutrient Metals: Mechanisms and Applications, Bigelow Laboratory for Ocean Sciences, ME.

Horner, T.J. (2014) Marine Biogeochemical Cycling of the Micronutrient Metals: Mechanisms and Applications to Ocean Sciences, University of California, Santa Cruz.

Horner, T.J., G.M. Henderson, R.E.M. Rickaby, and J.F. Adkins (2013) Cadmium isotopic evidence of Rayleigh fractionation during deep-sea coral biomineralization, Woods Hole Oceanographic Institution.

Horner, T.J. (2013) Molecular and isotopic insights into oceanic cadmium cycling, ETH Zürich.

Horner, T.J. (2013) Cadmium isotope fractionation in seawater: A new (palaeo-) proxy for an old problem, Woods Hole Oceanographic Institution.

Horner, T.J. (2012) Cadmium isotope fractionation in seawater: Driving mechanisms and palaeoceanographic applications, DISCO XXIII, Līhuʻe, Hawai'i.

Horner, T.J. (2012) Application of Cd isotopes to Chemical Oceanography: An experimental and proxy approach, National Oceanography Centre Southampton (UK).

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, Vienna.

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