John Rolison is broadly interested in developing methods for making high-precision isotope ratio measurements using multi-collection inductively coupled plasma mass spectrometry and applying these methods to various research topics including isotope geochemistry, chemical oceanography, and nuclear forensics. His recent research has focused on isotope fractionation of iron and uranium induced by redox transformations in the Black Sea, as well as developing radiochronometry methods for age-dating nuclear materials.
Honors and Awards
University of Otago International Doctoral Scholarship (2013-2016)
Selected (Recent) Publications
Rolison, J.M. Stirling C.H., Middag, R., Gault-Ringold, M., George, E., Rijkenberg, M.J.A., submitted. Iron isotope fractionation during pyrite formation in a sulfidic Precambrian ocean.
Rolison, J.M., Stirling, C.H., Middag, R., Rijkenberg, M.J.A., 2017. Uranium stable isotope fractionation in the Black Sea: Modern calibration of the 238U/235U paleo-redox proxy. Geochim. Cosmochim. Acta 203, 69-88.
Rolison, J.M., Middag, R., Stirling, C.H., Rijkenberg, M.J.A, de Baar , H.J.W., 2015. Zonal distribution of dissolved aluminium in the Mediterranean Sea. Marine Chemistry 177, 87-100.
Ren, X., Luke, W.T., Kelly, P., Cohen, M., Artz, R., Walker, J., Brooks, S., Moore, C., Swartzendruber, P, Bauer, D., Remeika, J., Hynes, A., Dibb, J., Rolison, J.M., Krishnamurthy, N., Landing, W.M., Hecobian, A., Shook, J., Huey, G., 2014. Mercury speciation at a coastal site in the Northern Gulf of Mexico: results from the Grand Bay intensive studies in summer 2010 and spring 2011. Atmosphere 5(2), 230-251.
Rolison, J.M., Landing, W.M., Luke, W., Cohen, M., Salters, V.J.M., 2013. Isotopic composition of species-specific atmospheric Hg in a coastal environment. Chemical Geology 336, 37-49.