PUBLICATIONS
Welcome to my virtual office. If you would like a copy of one of my publications, you can knock here on my virtual office door to request a copy. Alternatively, I typically keep many of my publications stacked outside my office door, you are welcome to sift through them below:
Lombard F., Bourdin G., Pesant S., Agostini S., Baudena A., Boissin E., Cassar N., Clampitt M., Conan P., Da Silva O., Dimier C., Douville E., Elineau A., Fin J., Flores J. M., Ghiglione J.-F., Hume B. C. C., Jalabert L., John S. G., Kelly R. L., Koren I., Lin Y., Marie D., McMinds R., Mériguet Z., Metzl N., Paz-García D. A., Pedrotti M. L., Poulain J., Pujo-Pay M., Ras J., Reverdin G., Romac S., Rouan A., Röttinger E., Vardi A., Voolstra C. R., Moulin C., Iwankow G., Banaigs B., Bowler C., de Vargas C., Forcioli D., Furla P., Galand P. E., Gilson E., Reynaud S., Sunagawa S., Sullivan M. B., Thomas O. P., Troublé R., Thurber R. V., Wincker P., Zoccola D., Allemand D., Planes S., Boss E. and Gorsky G. (2023) Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems. Scientific Data 10, 324.
Lunstrum A., Berghe M. Van Den, Bian X., John S., Nealson K. and West A. J. (2023) Bacterial use of siderophores increases olivine dissolution rates by nearly an order of magnitude. Geochemical Perspectives Letters 25, 51–55.
Sieber M, Lanning N. T., Bian X., Yang S.-C., Takano S., Sohrin Y., Weber T. S., Fitzsimmons J. N., John S. G. and Conway T. M. (2023) The Importance of Reversible Scavenging for the Marine Zn Cycle Evidenced by the Distribution of Zinc and Its Isotopes in the Pacific Ocean. Journal of Geophysical Research Oceans 128, e2022JC019419.
Liang H., Lunstrum A. M., Dong S., Berelson W. M. and John S. G. (2023) Constraining CaCO3 Export and Dissolution With an Ocean Alkalinity Inverse Model. Global Biogeochemical Cycles 37, e2022GB007535.
Sieber Matthias, Lanning N. T., Bunnell Z. B., Bian X., Yang S.-C., Marsay C. M., Landing W. M., Buck C. S., Fitzsimmons J. N., John S. G. and Conway T. M. (2023) Biological, Physical, and Atmospheric Controls on the Distribution of Cadmium and Its Isotopes in the Pacific Ocean. Global Biogeochemical Cycles 37, e2022GB007441.
Bian X., Yang S.-C., Bolster K. M., Moriyasu R., Moffett J. W. and John S. G. (2023) Biogeochemical cycling of Cd, Mn, and Ce in the Eastern Tropical North Pacific oxygen-deficient zone. Limnology and Oceanography 68, 483–497.
Park J., Durham B. P., Key R. S., Groussman R. D., Bartolek Z., Pinedo-Gonzalez P., Hawco N. J., John S. G., Carlson M. C. G., Lindell D., Juranek L. W., Ferrón S., Ribalet F., Armbrust E. V., Ingalls A. E. and Bundy R. M. (2023) Siderophore production and utilization by marine bacteria in the North Pacific Ocean. Limnology and Oceanography.
John S. G., Kelly R. L., Bian X., Fu F., Smith M. I., Lanning N. T., Liang H., Pasquier B., Seelen E. A., Holzer M., Wasylenki L., Conway T. M., Fitzsimmons J. N., Hutchins D. A. and Yang S.-C. (2022) The biogeochemical balance of oceanic nickel cycling. Nature Geoscience 15, 906–912.
Kipp M. A., Li H., Ellwood M. J., John S. G., Middag R., Adkins J. F. and Tissot F. L. H. (2022) 238U, 235U and 234U in seawater and deep-sea corals: A high-precision reappraisal. Geochimica et Cosmochimica Acta 336, 231–248.
Hawco N. J., Yang S.-C., Pinedo-González P., Black E. E., Kenyon J., Ferrón S., Bian X. and John S. G. (2022) Recycling of dissolved iron in the North Pacific Subtropical Gyre. Limnology and Oceanography 67, 2448–2465.
Zhang R., Ren J., Zhang Z., Zhu Z. and John S. (2022) Distribution patterns of dissolved trace metals (Fe, Ni, Cu, Zn, Cd, and Pb) in China marginal seas during the GEOTRACES GP06-CN cruise. Chemical Geology 604, 120948.
Pasquier B, Hines S. K. V, Liang H., Wu Y., Goldstein S. L. and John S. G. (2022) GNOM v1.0: an optimized steady-state model of the modern marine neodymium cycle. Geoscientific Model Development 15, 4625–4656.
Barone B., Church M. J., Dugenne M., Hawco N. J., Jahn O., White A. E., John S. G., Follows M. J., DeLong E. F. and Karl D. M. (2022) Biogeochemical Dynamics in Adjacent Mesoscale Eddies of Opposite Polarity. Global Biogeochemical Cycles 36, e2021GB007115.
Pasquier Benoit, Primeau F. W. and John S. G. (2022) AIBECS.jl: A tool for exploring global marine biogeochemical cycles. Journal of Open Source Software 7, 3814.
Baumgartner R. J., Kunzmann M., Spinks S., Bian X., John S. G., Blaikie T. N. and Hu S. (2021) Zinc isotope composition of the Proterozoic clastic-dominated McArthur River Zn-Pb-Ag deposit, northern Australia. Ore Geology Reviews 139, 104545.
Hawco N. J., Barone B., Church M. J., Babcock-Adams L., Repeta D. J., Wear E. K., Foreman R. K., Björkman K. M., Bent S., Van Mooy B. A. S., Sheyn U., DeLong E. F., Acker M., Kelly R. L., Nelson A., Ranieri J., Clemente T. M., Karl D. M. and John S. G. (2021a) Iron Depletion in the Deep Chlorophyll Maximum: Mesoscale Eddies as Natural Iron Fertilization Experiments. Global Biogeochemical Cycles 35, e2021GB007112.
Zhang R., Jensen L., Fitzsimmons J., Sherrell R. M., Lam P., Xiang Y. and John S. (2021) Iron Isotope Biogeochemical Cycling in the Western Arctic Ocean. Global Biogeochemical Cycles 35, e2021GB006977.
Foreman R. K., Björkman K. M., Funkey C. P., Hawco N. J., Wilson S. T., Rohrer T., White A. E., John S. G. and Karl D. M. (2021) Phosphate Scavenging During Lava-Seawater Interaction Offshore of Kīlauea Volcano, Hawaii. Geochemistry, Geophys. Geosystems 22, e2021GC009754.
Homoky W. B., Conway T. M., John S. G., König D., Deng F., Tagliabue A. and Mills R. A. (2021) Iron colloids dominate sedimentary supply to the ocean interior. Proc. Natl. Acad. Sci. 118, e2016078118.
Kelly R. L., Bian X., Feakins S. J., Fornace K. L., Gunderson T., Hawco N. J., Liang H., Niggemann J., Paulson S. E., Pinedo-Gonzalez P., West A. J., Yang S.-C. and John S. G. (2021) Delivery of Metals and Dissolved Black Carbon to the Southern California Coastal Ocean via Aerosols and Floodwaters Following the 2017 Thomas Fire. J. Geophys. Res. Biogeosciences 126, e2020JG006117.
De Vera J., Chandan P., Pinedo-González P., John S. G., Jackson S. L., Cullen J. T., Colombo M., Orians K. J. and Bergquist B. A. (2021) Anthropogenic lead pervasive in Canadian Arctic seawater. Proc. Natl. Acad. Sci. 118, e2100023118.
Yang S.-C., Kelly R. L., Bian X., Conway T. M., Huang K.-F., Ho T.-Y., Neibauer J. A., Keil R. G., Moffett J. W. and John S. G. (2021) Lack of redox cycling for nickel in the water column of the Eastern tropical north pacific oxygen deficient zone: Insight from dissolved and particulate nickel isotopes. Geochim. Cosmochim. Acta 309, 235–250.
Pinedo-González, Paulina, Nicholas J. Hawco, Randelle M. Bundy, E. Virginia Armbrust, Michael J. Follows, B. B. Cael, Angelicque E. White, Sara Ferrón, David M. Karl, and Seth G. John, 2020. Anthropogenic Asian aerosols provide Fe to the North Pacific. Proceedings of the National Academy of Sciences 117, 27862-27868.
Jenssen, Laramie T., Peter Morton, Benjamin S Twining, Maija I Heller, Mariko Hatta, Christopher I Measures, Seth John, Ruifeng Zhang, Paulina Pinedo-Gonzalez, Robert M Sherrell and Jessica N Fitzsimmons, 2020. A comparison of marine Fe and Mn cycling: US GEOTRACES GN01 Western Arctic case study. Geochimica et Cosmochimica Acta 288, 138-160.
Bundy, Randelle M., Alessandro Tagliabue, Nicholas J Hawco, Peter L Morton, Benjamin S Twining, Mariko Hatta, Abigail E Noble, Mattias R Cape, Seth G John, Jay T Cullen and Mak A Saito, 2020. Elevated sources of cobalt in the Arctic Ocean. Biogeosciences 17, 4745-4767.
Hawco, Nicholas J., Feixue Fu, Nina Yang, David A Hutchins, and Seth G John, 2020. Independent iron and light limitation in a low-light-adapted Prochlorococcus from the deep chlorophyll maximum. The ISME Journal, 1-4.
Hawco, Nicholas J., Shun-Chung Yang, Rhea K Foreman, Carolina P Funkey, Mathilde Dugenne, Angelicque E White, Samuel T Wilson, Rachel L Kelly, Xiaopeng Bian, Kuo-Fang Huang, David M Karl, and Seth G John, 2020, Metal isotope signatures from lava-seawater interaction during the 2018 eruption of Kīlauea. Geochimica et Cosmochimica Acta 282, 340-356.
Roshan, Saeed, Tim DeVries, Jingfeng Wu, Seth John and Thomas Weber, 2020. Reversible scavenging traps hydrothermal iron in the deep ocean. Earth and Planetary Science Letters 542, 11629712020.
Yang, Shun-Chung, Nicholas J Hawco, Paulina Pinedo Gonzalez, Xiaopeng Bian, Kuo-Fang Huang, Ruifeng Zhang and Seth G John, 2020. A new purification method for Ni and Cu stable isotopes in seawater provides evidence for widespread Ni isotope fractionation by phytoplankton in the North Pacific. Chemical Geology, 119662.
Charette, Matthew A., Lauren E Kipp, Laramie T Jensen, Jessica S Dabrowski, Laura M Whitmore, Jessica N Fitzsimmons, Tatiana Williford, Adam Ulfsbo, Elizabeth Jones, Randelle M Bundy, Sebastian M Vivancos, Katharina Pahnke, Seth G John, Yang Xiang, Mariko Hatta, Mariia V Petrova, Lars‐Eric Heimbürger‐Boavida, Dorothea Bauch, Robert Newton, Angelica Pasqualini, Alison M Agather, Rainer MW Amon, Robert F Anderson, Per S Andersson, Ronald Benner, Katlin L Bowman, R Lawrence Edwards, Sandra Gdaniec, Loes JA Gerringa, Aridane G González, Mats Granskog, Brian Haley, Chad R Hammerschmidt, Dennis A Hansell, Paul B Henderson, David C Kadko, Karl Kaiser, Patrick Laan, Phoebe J Lam, Carl H Lamborg, Martin Levier, Xianglei Li, Andrew R Margolin, Chris Measures, Rob Middag, Frank J Millero, Willard S Moore, Ronja Paffrath, Hélène Planquette, Benjamin Rabe, Heather Reader, Robert Rember, Micha JA Rijkenberg, Matthieu Roy‐Barman, Michiel Rutgers van der Loeff, Mak Saito, Ursula Schauer, Peter Schlosser, Robert M Sherrell, Alan M Shiller, Hans Slagter, Jeroen E Sonke, Colin Stedmon, Ryan J Woosley, Ole Valk, Jan van Ooijen and Ruifeng Zhang, 2020. The Transpolar Drift as a Source of Riverine and Shelf‐Derived Trace Elements to the Central Arctic Ocean. Journal of Geophysical Research: Oceans 125 (5), e2019JC015920.
Gradoville, Mary R., Hanna Farnelid, Angelicque E. White, Kendra A. Turk-Kubo, Brittany Stewart, François Ribalet, Sara Ferrón, Paulina Pinedo-Gonzalez, E. Virginia Armbrust, David M. Karl, Seth John, and Jonathan P. Zehr, 2020. Latitudinal constraints on the abundance and activity of the cyanobacterium UCYN-A and other marine diazotrophs in the North Pacific. Limnology and Oceanography 65, 1858–1875.
John S. G., Liang H., Weber T., DeVries T., Primeau F., Moore K., Holzer M., Mahowald N., Gardner W., Mishinov A., Richardson M. J., Faugere Y. and Taburet G. (2020) AWESOME OCIM: A simple, flexible, and powerful tool for modeling elemental cycling in the oceans. Chemical Geology 533, 119403.
Zimmerman A. E., Howard-Varona C., Needham D. M., John S. G., Worden A. Z., Sullivan M. B., Waldbauer J. R. and Coleman M. L. (2020) Metabolic and biogeochemical consequences of viral infection in aquatic ecosystems. Nature Reviews in Microbiology 18, 21–34.
Gorsky, G., Bourdin, G., Lombard, F., Pedrotti, M. L., Audrain, S., Bin, N., Boss, E., Bowler, C., Cassar, N., Caudan, L., Chabot, G., Cohen, N. R., Cron, D., De Vargas, C., Dolan, J. R., Douville, E., Elineau, A., Flores, J. M., Ghiglione, J. F., Haëntjens, N., Hertau, M., John, S. G., Kelly, R. L., Koren, I., Lin, Y., Marie, D., Moulin, C., Moucherie, Y., Pesant, S., Picheral, M., Poulain, J., Pujo-Pay, M., Reverdin, G., Romac, S., Sullivan, M. B., Trainic, M., Tressol, M., Troublé, R., Vardi, A., Voolstra, C. R., Wincker, P., Agostini, S., Banaigs, B., Boissin, E., Forcioli, D., Furla, P., Galand, P. E., Gilson, E., Reynaud, S., Sunagawa, S., Thomas, O. P., Thurber, R. L. V., Zoccola, D., Planes, S., Allemand, D. and Karsenti, E., 2019. Expanding Tara Oceans Protocols for Underway, Ecosystemic Sampling of the Ocean-Atmosphere Interface During Tara Pacific Expedition (2016–2018), Front. Mar. Sci., 6, 750.
Conway T. M., Hamilton D. S., Shelley R. U., Aguilar-Islas A. M., Landing W. M., Mahowald N. M. and John S. G. (2019) Tracing and constraining anthropogenic aerosol iron fluxes to the North Atlantic Ocean using iron isotopes. Nature Communications 10, 2628.
Wilson S. T., Hawco N. J., Armbrust E. V., Barone B., Björkman K. M., Boysen A. K., Burgos M., Burrell T. J., Casey J. R., DeLong E. F., Dugenne M., Dutkiewicz S., Dyhrman S. T., Ferrón S., Follows M. J., Foreman R. K., Funkey C. P., Harke M. J., Henke B. A., Hill C. N., Hynes A. M., Ingalls A. E., Jahn O., Kelly R. L., Knapp A. N., Letelier R. M., Ribalet F., Shimabukuro E. M., Tabata R. K. S., Turk-Kubo K. A., White A. E., Zehr J. P., John S. and Karl D. M. (2019) Kīlauea lava fuels phytoplankton bloom in the North Pacific Ocean. Science 365: 1040–1044.
Yang, S-C., Welter, L., Kolatkar, A., Nieva, J., Waitman, K. R., Huang, K-F., Liao, W-H., Takano, S., Berelson, W. M., West, J., Kuhn, P., and John, S. G. (2019) A new anion exchange purification method for Cu stable isotopes in blood samples. Analytical and Bioanalytical Chemistry, 411: 765-776.
John S. G. and Sunda W. G. (2018) Trace Metal Nutrients. In Encyclopedia of Ocean Sciences, 3rd Ed. (eds. J. K. Cochran, H. J. Bokuniewicz, and P. L. Yager). Elsevier. pp. 208–217.
Marsay, C. M., Aguilar-Islas, A., Fitzsimmons, J. N., Hatta, M., Jensen, L. T., John, S. G., Kadko, D., Landing, W. M., Lanning, N. T., Morton, P. L., Pasqualini, A., Rauscheenberg, S., Sherrell, R. M., Shiller, A. M., Twining, B. S., WHitmore, L. M., Zhang, R., Buck, C. S. (2018) Dissolved and particulate trace elements in late summer arctic melt ponds. Marine Chemistry, 204, 70-75.
Weber, T.*, John, S.*, Tagliabue, A., and DeVries, T. 2018. Biological uptake and reversible scavenging of zinc in the global ocean. Science, 361, 72-76.
*Co-first authors
Hayes, C. T., Anderson, R. F., Cheng, H., Conway, T. M., Edwards, R. L., Fleisher, M. Q., Ho, P., Huang, K-F, John, S. G., Landing, W. M., Little, S. H., Lu, Y., Morton, P. L., Moran, S. B., Robinson, L. F., Shelley, R. U., Shiller, A. M., Zheng, X-Y. (2018) Replacement times of a spectrum of elements in the North Atlantic based on thorium supply. Global Biogeochemical Cycles, 32, 1294-1311.
Isson, T. T., Love, G. D., Dupont, C. L., Reinhard, C. T., Zumberge, A. J., Asael, D., Gueguen, B., McCrow, J., Gill, B. C., Owens, J., Rainbird, R. H., Rooney, A. D., Zhao, M-Y., Stueeken, 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 DOI: 10.1111/gbi.12289.
John, S. G., Helgoe, J., Townsend, E., Weber, T., DeVries, T., Tagliabue, A., Moore, K., Lam, P., Marsay, C. M., and Till, C. 2018. Biogeochemical cycling of Fe and Fe stable isotopes in the Eastern Tropical South Pacific. Marine Chemistry 201: 66-76.
John, S. G., Helgoe, J., and Townsend, E. 2018. Biogeochemical cycling of Zn and Cd and their stable isotopes in the Eastern Tropical South Pacific. Marine Chemistry 201: 256-262.
Marsay, C. M., Lam, P. J., Heller, M. I., Lee, J-M., and John, S. G. 2018 Distribution and isotopic signature of ligand-leachable particulate iron along the GEOTRACES GP16 East Pacific Zonal Transect. Marine Chemistry 201: 198-211.
Dauphas N., John S. G. and Rouxel O. (2017) Iron isotope systematics. In Reviews in Mineralogy & Geochemistry.
Fitzsimmons, J. N., John, S. G., Marsay, C. M., Hoffman, C. L., Nicholas, S. L., Toner, B. M., German, C. R., Sherrell, R. M. 2017. Dissolved-particulate exchange supports persistent iron in a distal hydrothermal plume. Nature Geoscience 10, 195-201.
Cunningham, B. R., John, S. G. 2017. The effect of iron limitation on cyanobacteria major nutrient and trace element stoichiometry. Limnology and Oceanography 62, 846–858.
John, S. G., Kunzmann, M., Townsend, E. J., Rosenberg, A. D. 2017. Zinc and cadmium stable isotopes in the geological record: A case study from the post-snowball Earth Nuccaleena cap dolostone. Palaeogeography, Palaeoclimatology, Palaeoecology 466, 202–208.
Mackey, K. R. M., Post, A. F., McIlvin, M., Cutter, G. A., John, S. G., and M. A. Saito. 2015. Divergent responses of Atlantic coastal and oceanic Synechococcus to iron limitation. PNAS 112: 9944-9949.
Conway, T. M., John, S. G. and Lacan, F. 2016. Intercomparison of dissolved iron isotope profiles from reoccupation of three GEOTRACES stations in the Atlantic Ocean. Marine Chemistry 183: 50-61.
Fitzsimmons, J. N., Conway, T. M., Lee, J.-M., Kayser, R., Thyng, K. M., John, S. G. and Boyle, E. A. 2016. Dissolved iron and iron isotopes in the Eastern South Pacific Ocean. Glob. Biogeochem. Cycles. 30 (10). 1372-1395.
Middag, R., Séférian, R., Conway, T. M., John, S. G., Bruland, K. W. and de Baar, H. J. W. 2015. Intercomparison of Dissolved Trace Elements at the Bermuda Atlantic Time Series Station. Marine Chemistry 177: 476-479.
Zhang, R., John, S.G., Zhang, J., Ren, J., Wu, Y., Zhu, Z., Liu, S., Zhu, X., Marsay, C., and Wegner, F. Transport and reaction of iron and iron stable isotopes in glacial melt waters on Svalbard near Kongsfjorden: From rivers to estuary to ocean. Earth and Planetary Science Letters, 424: 201-211.
Mawji, E., et al. [135 authors including John, S. G.] (2015). The GEOTRACES Intermediate Data Product 2014. Marine Chemistry 177, 1-8.
Revels, B. N., Zhang, R., Adkins, J. F. and S. G. John. 2015. Fractionation of iron isotopes during leaching of natural particles by acidic and circumneutral leaches and development of an optimal leach for marine particulate iron isotopes. Geochimica et Cosmochimica Acta, 166: 92-104.
Conway, T. M., and John, S. G. 2015. The cycling of iron, zinc and cadmium in the North East Pacific Ocean - insights from stable isotopes. Geochimica et Cosmochimica Acta, 164: 262-283.
Conway, T.M., and S.G. John. 2015. Biogeochemical cycling of cadmium isotopes along a high- resolution section through the North Atlantic Ocean. Geochimica et Cosmochimica Acta, 148: 269-283.
Revels, B.N., Ohnemus, D.C., Lam, P.J., Conway, T.M., and S.G. John. 2015. The isotope signature and distribution of particulate iron in the North Atlantic Ocean. Deep-Sea Research Part II, 116, 321-331.
Fitzsimmons, J.N. Carrasco, G.G., Wu, J., Hatta, M., Measures, C.M., Conway, T.M., John, S.G., and E.A. Boyle. 2015 Partitioning of dissolved iron and iron isotopes into soluble and colloidal phases along the U.S. GEOTRACES North Atlantic Zonal Transect. Deep-Sea Research Part II, 130-151.
Conway, T.M., and S.G. John. 2014. The biogeochemical controls on the distribution of zinc and zinc isotopes in the North Atlantic Ocean. Global Biogeochemical Cycles, 28, doi:10.1002/2014GB004862.
Conway, T.M., and John, S.G. 2014. Quantification of sources of dissolved iron to the North Atlantic Ocean using iron isotopes. Nature, 511: 212-215.
Press and other articles about Conway and John, 2014:
Nature News and Views
GEOTRACES
An Fe isotopes limerick!
The Daily Climate
Science World Report
Nature World News
Science Daily
eScience News
Science 2.0
H2O Network
Phys.Org
EarthSky
Janssen, D.J., Conway, T.M., John, S.G., Christian, J., Kramer, D.I., Pedersen, T.F., Cullen, J.T. 2014. An undocumented water column sink for cadmium in open ocean oxygen deficient zones. PNAS, 111: 6888-6893.
John, S.G., and Conway, T.M. 2014. Scavenging is key to the marine biogeochemical cycling of Zinc. EPSL, 394: 159-167.
Black, J.R., John, S.G., Kavner, A. 2014. Coupled effects of temperature and mass transport on the isotope fractionation of zinc during electroplating. Geochimica et Cosmochimica Acta, 124: 272-282.
Conway, T.M., Rosenberg, A.D., Adkins, J.F., and S.G. John. 2013. A new method for precise determination of iron, zinc and cadmium stable isotope ratios in seawater by double-spike mass spectrometry. Analytica Chimica Acta, 793: 44-52.
Homoky, W.B., John, S.G., Conway, T.M., and R.A. Mills. 2013. Distinct iron isotopic signatures and supply from marine sediment dissolution. Nature Communications, 4.
John, S. 2012. Optimizing sample and spike concentrations for isotopic analysis by double-spike ICP-MS. Journal of Analytical Atomic Spectrometry, 27: 2123-2131.
Boyle, E., John, S., Abouchami, W., Adkins, J., Echegoyen-Sanz, Y., Flegal, A.R., Ellwood, M., Fornace, K., Gallon, C., Galer, S., Gault-Ringold, M., Lacan, F., Radic, A., Rehkamper, M., Rouxel, O., Sohrin, Y., Stirling, C., Thompson, C., Vance, D., Xue, Z., and Y.Zhao. 2012. GEOTRACES IC1 (BATS) contamination-prone trace element isotopes Cd, Fe, Pb, Zn, Cu, and Mo intercalibration. Limnology and Oceanography: Methods, 10: 653-665.
John, S.G. and J. Adkins. 2012. The vertical distribution of iron stable isotopes in the North Atlantic near Bermuda. Global Biogeochemical Cycles, 26: GB2034.
John, S.G., Mendez, J., Moffett, J., and J. Adkins. 2012. The flux of iron and iron isotopes from San Pedro Basin sediments. Geochimica et Cosmochimica Acta, 93: 14-29.
Black, J., Crawford, J., John, S., and A. Kavner. 2012. Redox driver stable isotope fractionation. In Aquatic Redox Chemistry, ACS Symposium Series 1071: 345-360.
Mohrig, J.R., Beyer, B.G., Fleischhacker, A.S., Ruthenburg, A.J., John, S.G., Snyder, D.A., Nyffeler, P.T., Noll, R.J., Penner, N.D., Phillips, L.A., Hurley, H.L.S., Jacobs, J.S., Treitel, C., James, T.L., and M.P. Montgomery. 2012. Does Activation of the Anti Proton, Rather than Concertedness, Determine the Stereochemistry of Base-Catalyzed 1,2-Elimination Reactions? Anti Stereospecificity in E1cB Eliminations of B-3-Trifluoromethylphenoxy Esters, Thioesters, and Ketones. The Journal of Organic Chemistry, 77: 2819-2828.
Sivan, O., Adler, M., Pearson, A., Gelman, F., Bar-Or, I., John, S.G., and W. Eckert. 2011. Geochemical evidence for iron-mediated anaerobic oxidation of methane. Limnology and Oceanography, 56: 1536-1544.
John, S.G. and J.F. Adkins. 2010. Analysis of dissolved iron isotopes in seawater. Marine Chemistry, 119: 65-76.
John, S.G., Mendez, C.B., Deng, L., Poulos, B., Kauffman, A.K.M., Kern, S., Brum, J., Polz, M.F., Boyle, E.A., and M.B. Sullivan. 2010. A simple and efficient method for concentration of ocean viruses by chemical flocculation. Environmental Microbiology Reports.
Black, J.R., John, S., Young, E.D., and A. Kavner. 2010. Effect of temperature and mass transport on transition metal isotope fractionation during electroplating. Geochimica et Cosmochimica Acta, 74(18): 5187-5201.
John, S.G., Rouxel, O.J., Craddock, P.R., Engwall, A.M., and E.A. Boyle. 2008. Zinc stable isotopes in seafloor hydrothermal vent fluids and chimneys. Earth and Planetary Science Letters, 269: 17-28.
Kavner, A., John, S.G., Sass, S., and E.A. Boyle. 2008. Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating. Geochimica et Cosmochimica Acta, 72: 1731-1741.
Dhungana, S., Michalczyk, R., Boukhalfa, H., Lack, J.G., Koppisch, A.T., Fairlee, J.M., Johnson, M.T., Ruggiero, C.E., John, S.G., Cox, M.M., Browder, C.C., Forsythe, J.H., Vanderberg, L.A., Neu, M.P., and L.E. Hersman. 2007. Purification and characterization of rhodobactin: a mixed ligand siderophore from Rhodococcus rhodochrous strain OFS. Biometals, 20: 853-867.
John, S.G., Park, J.G., Zhang, Z., and E.A. Boyle. 2007. The isotopic composition of some common forms of anthropogenic zinc. Chemical Geology, 245: 61-69.
John, S.G., Geis, R.W., Saito, M.A., and E.A. Boyle. 2007. Zinc isotope fractionation during high-affinity and low-affinity zinc transport by the marine diatom Thalassiosira oceanica. Limnol. Oceanogr., 52(6): 2710-2714.
Repeta, D.J., Hartman, N.T., John, S., Jones, A.D., and R. Goericke. 2004. Structure Elucidation and Characterization of Polychlorinated Biphenyl Carboxylic Acids as Major Constituents of Chromophoric Dissolved Organic Matter in Seawater. Environ. Sci. Technol, 38: 5373-5378.
John, S.G., Ruggiero, C.E., Hersman, L.E., Tung, C., and M.P. Neu. 2001. Siderophore Mediated Plutonium Accumulation by Microbacterium flavescens (JG-9). Environ. Sci. Technol., 35.
Welcome to my virtual office. If you would like a copy of one of my publications, you can knock here on my virtual office door to request a copy. Alternatively, I typically keep many of my publications stacked outside my office door, you are welcome to sift through them below:
Lombard F., Bourdin G., Pesant S., Agostini S., Baudena A., Boissin E., Cassar N., Clampitt M., Conan P., Da Silva O., Dimier C., Douville E., Elineau A., Fin J., Flores J. M., Ghiglione J.-F., Hume B. C. C., Jalabert L., John S. G., Kelly R. L., Koren I., Lin Y., Marie D., McMinds R., Mériguet Z., Metzl N., Paz-García D. A., Pedrotti M. L., Poulain J., Pujo-Pay M., Ras J., Reverdin G., Romac S., Rouan A., Röttinger E., Vardi A., Voolstra C. R., Moulin C., Iwankow G., Banaigs B., Bowler C., de Vargas C., Forcioli D., Furla P., Galand P. E., Gilson E., Reynaud S., Sunagawa S., Sullivan M. B., Thomas O. P., Troublé R., Thurber R. V., Wincker P., Zoccola D., Allemand D., Planes S., Boss E. and Gorsky G. (2023) Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems. Scientific Data 10, 324.
Lunstrum A., Berghe M. Van Den, Bian X., John S., Nealson K. and West A. J. (2023) Bacterial use of siderophores increases olivine dissolution rates by nearly an order of magnitude. Geochemical Perspectives Letters 25, 51–55.
Sieber M, Lanning N. T., Bian X., Yang S.-C., Takano S., Sohrin Y., Weber T. S., Fitzsimmons J. N., John S. G. and Conway T. M. (2023) The Importance of Reversible Scavenging for the Marine Zn Cycle Evidenced by the Distribution of Zinc and Its Isotopes in the Pacific Ocean. Journal of Geophysical Research Oceans 128, e2022JC019419.
Liang H., Lunstrum A. M., Dong S., Berelson W. M. and John S. G. (2023) Constraining CaCO3 Export and Dissolution With an Ocean Alkalinity Inverse Model. Global Biogeochemical Cycles 37, e2022GB007535.
Sieber Matthias, Lanning N. T., Bunnell Z. B., Bian X., Yang S.-C., Marsay C. M., Landing W. M., Buck C. S., Fitzsimmons J. N., John S. G. and Conway T. M. (2023) Biological, Physical, and Atmospheric Controls on the Distribution of Cadmium and Its Isotopes in the Pacific Ocean. Global Biogeochemical Cycles 37, e2022GB007441.
Bian X., Yang S.-C., Bolster K. M., Moriyasu R., Moffett J. W. and John S. G. (2023) Biogeochemical cycling of Cd, Mn, and Ce in the Eastern Tropical North Pacific oxygen-deficient zone. Limnology and Oceanography 68, 483–497.
Park J., Durham B. P., Key R. S., Groussman R. D., Bartolek Z., Pinedo-Gonzalez P., Hawco N. J., John S. G., Carlson M. C. G., Lindell D., Juranek L. W., Ferrón S., Ribalet F., Armbrust E. V., Ingalls A. E. and Bundy R. M. (2023) Siderophore production and utilization by marine bacteria in the North Pacific Ocean. Limnology and Oceanography.
John S. G., Kelly R. L., Bian X., Fu F., Smith M. I., Lanning N. T., Liang H., Pasquier B., Seelen E. A., Holzer M., Wasylenki L., Conway T. M., Fitzsimmons J. N., Hutchins D. A. and Yang S.-C. (2022) The biogeochemical balance of oceanic nickel cycling. Nature Geoscience 15, 906–912.
Kipp M. A., Li H., Ellwood M. J., John S. G., Middag R., Adkins J. F. and Tissot F. L. H. (2022) 238U, 235U and 234U in seawater and deep-sea corals: A high-precision reappraisal. Geochimica et Cosmochimica Acta 336, 231–248.
Hawco N. J., Yang S.-C., Pinedo-González P., Black E. E., Kenyon J., Ferrón S., Bian X. and John S. G. (2022) Recycling of dissolved iron in the North Pacific Subtropical Gyre. Limnology and Oceanography 67, 2448–2465.
Zhang R., Ren J., Zhang Z., Zhu Z. and John S. (2022) Distribution patterns of dissolved trace metals (Fe, Ni, Cu, Zn, Cd, and Pb) in China marginal seas during the GEOTRACES GP06-CN cruise. Chemical Geology 604, 120948.
Pasquier B, Hines S. K. V, Liang H., Wu Y., Goldstein S. L. and John S. G. (2022) GNOM v1.0: an optimized steady-state model of the modern marine neodymium cycle. Geoscientific Model Development 15, 4625–4656.
Barone B., Church M. J., Dugenne M., Hawco N. J., Jahn O., White A. E., John S. G., Follows M. J., DeLong E. F. and Karl D. M. (2022) Biogeochemical Dynamics in Adjacent Mesoscale Eddies of Opposite Polarity. Global Biogeochemical Cycles 36, e2021GB007115.
Pasquier Benoit, Primeau F. W. and John S. G. (2022) AIBECS.jl: A tool for exploring global marine biogeochemical cycles. Journal of Open Source Software 7, 3814.
Baumgartner R. J., Kunzmann M., Spinks S., Bian X., John S. G., Blaikie T. N. and Hu S. (2021) Zinc isotope composition of the Proterozoic clastic-dominated McArthur River Zn-Pb-Ag deposit, northern Australia. Ore Geology Reviews 139, 104545.
Hawco N. J., Barone B., Church M. J., Babcock-Adams L., Repeta D. J., Wear E. K., Foreman R. K., Björkman K. M., Bent S., Van Mooy B. A. S., Sheyn U., DeLong E. F., Acker M., Kelly R. L., Nelson A., Ranieri J., Clemente T. M., Karl D. M. and John S. G. (2021a) Iron Depletion in the Deep Chlorophyll Maximum: Mesoscale Eddies as Natural Iron Fertilization Experiments. Global Biogeochemical Cycles 35, e2021GB007112.
Zhang R., Jensen L., Fitzsimmons J., Sherrell R. M., Lam P., Xiang Y. and John S. (2021) Iron Isotope Biogeochemical Cycling in the Western Arctic Ocean. Global Biogeochemical Cycles 35, e2021GB006977.
Foreman R. K., Björkman K. M., Funkey C. P., Hawco N. J., Wilson S. T., Rohrer T., White A. E., John S. G. and Karl D. M. (2021) Phosphate Scavenging During Lava-Seawater Interaction Offshore of Kīlauea Volcano, Hawaii. Geochemistry, Geophys. Geosystems 22, e2021GC009754.
Homoky W. B., Conway T. M., John S. G., König D., Deng F., Tagliabue A. and Mills R. A. (2021) Iron colloids dominate sedimentary supply to the ocean interior. Proc. Natl. Acad. Sci. 118, e2016078118.
Kelly R. L., Bian X., Feakins S. J., Fornace K. L., Gunderson T., Hawco N. J., Liang H., Niggemann J., Paulson S. E., Pinedo-Gonzalez P., West A. J., Yang S.-C. and John S. G. (2021) Delivery of Metals and Dissolved Black Carbon to the Southern California Coastal Ocean via Aerosols and Floodwaters Following the 2017 Thomas Fire. J. Geophys. Res. Biogeosciences 126, e2020JG006117.
De Vera J., Chandan P., Pinedo-González P., John S. G., Jackson S. L., Cullen J. T., Colombo M., Orians K. J. and Bergquist B. A. (2021) Anthropogenic lead pervasive in Canadian Arctic seawater. Proc. Natl. Acad. Sci. 118, e2100023118.
Yang S.-C., Kelly R. L., Bian X., Conway T. M., Huang K.-F., Ho T.-Y., Neibauer J. A., Keil R. G., Moffett J. W. and John S. G. (2021) Lack of redox cycling for nickel in the water column of the Eastern tropical north pacific oxygen deficient zone: Insight from dissolved and particulate nickel isotopes. Geochim. Cosmochim. Acta 309, 235–250.
Pinedo-González, Paulina, Nicholas J. Hawco, Randelle M. Bundy, E. Virginia Armbrust, Michael J. Follows, B. B. Cael, Angelicque E. White, Sara Ferrón, David M. Karl, and Seth G. John, 2020. Anthropogenic Asian aerosols provide Fe to the North Pacific. Proceedings of the National Academy of Sciences 117, 27862-27868.
Jenssen, Laramie T., Peter Morton, Benjamin S Twining, Maija I Heller, Mariko Hatta, Christopher I Measures, Seth John, Ruifeng Zhang, Paulina Pinedo-Gonzalez, Robert M Sherrell and Jessica N Fitzsimmons, 2020. A comparison of marine Fe and Mn cycling: US GEOTRACES GN01 Western Arctic case study. Geochimica et Cosmochimica Acta 288, 138-160.
Bundy, Randelle M., Alessandro Tagliabue, Nicholas J Hawco, Peter L Morton, Benjamin S Twining, Mariko Hatta, Abigail E Noble, Mattias R Cape, Seth G John, Jay T Cullen and Mak A Saito, 2020. Elevated sources of cobalt in the Arctic Ocean. Biogeosciences 17, 4745-4767.
Hawco, Nicholas J., Feixue Fu, Nina Yang, David A Hutchins, and Seth G John, 2020. Independent iron and light limitation in a low-light-adapted Prochlorococcus from the deep chlorophyll maximum. The ISME Journal, 1-4.
Hawco, Nicholas J., Shun-Chung Yang, Rhea K Foreman, Carolina P Funkey, Mathilde Dugenne, Angelicque E White, Samuel T Wilson, Rachel L Kelly, Xiaopeng Bian, Kuo-Fang Huang, David M Karl, and Seth G John, 2020, Metal isotope signatures from lava-seawater interaction during the 2018 eruption of Kīlauea. Geochimica et Cosmochimica Acta 282, 340-356.
Roshan, Saeed, Tim DeVries, Jingfeng Wu, Seth John and Thomas Weber, 2020. Reversible scavenging traps hydrothermal iron in the deep ocean. Earth and Planetary Science Letters 542, 11629712020.
Yang, Shun-Chung, Nicholas J Hawco, Paulina Pinedo Gonzalez, Xiaopeng Bian, Kuo-Fang Huang, Ruifeng Zhang and Seth G John, 2020. A new purification method for Ni and Cu stable isotopes in seawater provides evidence for widespread Ni isotope fractionation by phytoplankton in the North Pacific. Chemical Geology, 119662.
Charette, Matthew A., Lauren E Kipp, Laramie T Jensen, Jessica S Dabrowski, Laura M Whitmore, Jessica N Fitzsimmons, Tatiana Williford, Adam Ulfsbo, Elizabeth Jones, Randelle M Bundy, Sebastian M Vivancos, Katharina Pahnke, Seth G John, Yang Xiang, Mariko Hatta, Mariia V Petrova, Lars‐Eric Heimbürger‐Boavida, Dorothea Bauch, Robert Newton, Angelica Pasqualini, Alison M Agather, Rainer MW Amon, Robert F Anderson, Per S Andersson, Ronald Benner, Katlin L Bowman, R Lawrence Edwards, Sandra Gdaniec, Loes JA Gerringa, Aridane G González, Mats Granskog, Brian Haley, Chad R Hammerschmidt, Dennis A Hansell, Paul B Henderson, David C Kadko, Karl Kaiser, Patrick Laan, Phoebe J Lam, Carl H Lamborg, Martin Levier, Xianglei Li, Andrew R Margolin, Chris Measures, Rob Middag, Frank J Millero, Willard S Moore, Ronja Paffrath, Hélène Planquette, Benjamin Rabe, Heather Reader, Robert Rember, Micha JA Rijkenberg, Matthieu Roy‐Barman, Michiel Rutgers van der Loeff, Mak Saito, Ursula Schauer, Peter Schlosser, Robert M Sherrell, Alan M Shiller, Hans Slagter, Jeroen E Sonke, Colin Stedmon, Ryan J Woosley, Ole Valk, Jan van Ooijen and Ruifeng Zhang, 2020. The Transpolar Drift as a Source of Riverine and Shelf‐Derived Trace Elements to the Central Arctic Ocean. Journal of Geophysical Research: Oceans 125 (5), e2019JC015920.
Gradoville, Mary R., Hanna Farnelid, Angelicque E. White, Kendra A. Turk-Kubo, Brittany Stewart, François Ribalet, Sara Ferrón, Paulina Pinedo-Gonzalez, E. Virginia Armbrust, David M. Karl, Seth John, and Jonathan P. Zehr, 2020. Latitudinal constraints on the abundance and activity of the cyanobacterium UCYN-A and other marine diazotrophs in the North Pacific. Limnology and Oceanography 65, 1858–1875.
John S. G., Liang H., Weber T., DeVries T., Primeau F., Moore K., Holzer M., Mahowald N., Gardner W., Mishinov A., Richardson M. J., Faugere Y. and Taburet G. (2020) AWESOME OCIM: A simple, flexible, and powerful tool for modeling elemental cycling in the oceans. Chemical Geology 533, 119403.
Zimmerman A. E., Howard-Varona C., Needham D. M., John S. G., Worden A. Z., Sullivan M. B., Waldbauer J. R. and Coleman M. L. (2020) Metabolic and biogeochemical consequences of viral infection in aquatic ecosystems. Nature Reviews in Microbiology 18, 21–34.
Gorsky, G., Bourdin, G., Lombard, F., Pedrotti, M. L., Audrain, S., Bin, N., Boss, E., Bowler, C., Cassar, N., Caudan, L., Chabot, G., Cohen, N. R., Cron, D., De Vargas, C., Dolan, J. R., Douville, E., Elineau, A., Flores, J. M., Ghiglione, J. F., Haëntjens, N., Hertau, M., John, S. G., Kelly, R. L., Koren, I., Lin, Y., Marie, D., Moulin, C., Moucherie, Y., Pesant, S., Picheral, M., Poulain, J., Pujo-Pay, M., Reverdin, G., Romac, S., Sullivan, M. B., Trainic, M., Tressol, M., Troublé, R., Vardi, A., Voolstra, C. R., Wincker, P., Agostini, S., Banaigs, B., Boissin, E., Forcioli, D., Furla, P., Galand, P. E., Gilson, E., Reynaud, S., Sunagawa, S., Thomas, O. P., Thurber, R. L. V., Zoccola, D., Planes, S., Allemand, D. and Karsenti, E., 2019. Expanding Tara Oceans Protocols for Underway, Ecosystemic Sampling of the Ocean-Atmosphere Interface During Tara Pacific Expedition (2016–2018), Front. Mar. Sci., 6, 750.
Conway T. M., Hamilton D. S., Shelley R. U., Aguilar-Islas A. M., Landing W. M., Mahowald N. M. and John S. G. (2019) Tracing and constraining anthropogenic aerosol iron fluxes to the North Atlantic Ocean using iron isotopes. Nature Communications 10, 2628.
Wilson S. T., Hawco N. J., Armbrust E. V., Barone B., Björkman K. M., Boysen A. K., Burgos M., Burrell T. J., Casey J. R., DeLong E. F., Dugenne M., Dutkiewicz S., Dyhrman S. T., Ferrón S., Follows M. J., Foreman R. K., Funkey C. P., Harke M. J., Henke B. A., Hill C. N., Hynes A. M., Ingalls A. E., Jahn O., Kelly R. L., Knapp A. N., Letelier R. M., Ribalet F., Shimabukuro E. M., Tabata R. K. S., Turk-Kubo K. A., White A. E., Zehr J. P., John S. and Karl D. M. (2019) Kīlauea lava fuels phytoplankton bloom in the North Pacific Ocean. Science 365: 1040–1044.
Yang, S-C., Welter, L., Kolatkar, A., Nieva, J., Waitman, K. R., Huang, K-F., Liao, W-H., Takano, S., Berelson, W. M., West, J., Kuhn, P., and John, S. G. (2019) A new anion exchange purification method for Cu stable isotopes in blood samples. Analytical and Bioanalytical Chemistry, 411: 765-776.
John S. G. and Sunda W. G. (2018) Trace Metal Nutrients. In Encyclopedia of Ocean Sciences, 3rd Ed. (eds. J. K. Cochran, H. J. Bokuniewicz, and P. L. Yager). Elsevier. pp. 208–217.
Marsay, C. M., Aguilar-Islas, A., Fitzsimmons, J. N., Hatta, M., Jensen, L. T., John, S. G., Kadko, D., Landing, W. M., Lanning, N. T., Morton, P. L., Pasqualini, A., Rauscheenberg, S., Sherrell, R. M., Shiller, A. M., Twining, B. S., WHitmore, L. M., Zhang, R., Buck, C. S. (2018) Dissolved and particulate trace elements in late summer arctic melt ponds. Marine Chemistry, 204, 70-75.
Weber, T.*, John, S.*, Tagliabue, A., and DeVries, T. 2018. Biological uptake and reversible scavenging of zinc in the global ocean. Science, 361, 72-76.
*Co-first authors
Hayes, C. T., Anderson, R. F., Cheng, H., Conway, T. M., Edwards, R. L., Fleisher, M. Q., Ho, P., Huang, K-F, John, S. G., Landing, W. M., Little, S. H., Lu, Y., Morton, P. L., Moran, S. B., Robinson, L. F., Shelley, R. U., Shiller, A. M., Zheng, X-Y. (2018) Replacement times of a spectrum of elements in the North Atlantic based on thorium supply. Global Biogeochemical Cycles, 32, 1294-1311.
Isson, T. T., Love, G. D., Dupont, C. L., Reinhard, C. T., Zumberge, A. J., Asael, D., Gueguen, B., McCrow, J., Gill, B. C., Owens, J., Rainbird, R. H., Rooney, A. D., Zhao, M-Y., Stueeken, 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 DOI: 10.1111/gbi.12289.
John, S. G., Helgoe, J., Townsend, E., Weber, T., DeVries, T., Tagliabue, A., Moore, K., Lam, P., Marsay, C. M., and Till, C. 2018. Biogeochemical cycling of Fe and Fe stable isotopes in the Eastern Tropical South Pacific. Marine Chemistry 201: 66-76.
John, S. G., Helgoe, J., and Townsend, E. 2018. Biogeochemical cycling of Zn and Cd and their stable isotopes in the Eastern Tropical South Pacific. Marine Chemistry 201: 256-262.
Marsay, C. M., Lam, P. J., Heller, M. I., Lee, J-M., and John, S. G. 2018 Distribution and isotopic signature of ligand-leachable particulate iron along the GEOTRACES GP16 East Pacific Zonal Transect. Marine Chemistry 201: 198-211.
Dauphas N., John S. G. and Rouxel O. (2017) Iron isotope systematics. In Reviews in Mineralogy & Geochemistry.
Fitzsimmons, J. N., John, S. G., Marsay, C. M., Hoffman, C. L., Nicholas, S. L., Toner, B. M., German, C. R., Sherrell, R. M. 2017. Dissolved-particulate exchange supports persistent iron in a distal hydrothermal plume. Nature Geoscience 10, 195-201.
Cunningham, B. R., John, S. G. 2017. The effect of iron limitation on cyanobacteria major nutrient and trace element stoichiometry. Limnology and Oceanography 62, 846–858.
John, S. G., Kunzmann, M., Townsend, E. J., Rosenberg, A. D. 2017. Zinc and cadmium stable isotopes in the geological record: A case study from the post-snowball Earth Nuccaleena cap dolostone. Palaeogeography, Palaeoclimatology, Palaeoecology 466, 202–208.
Mackey, K. R. M., Post, A. F., McIlvin, M., Cutter, G. A., John, S. G., and M. A. Saito. 2015. Divergent responses of Atlantic coastal and oceanic Synechococcus to iron limitation. PNAS 112: 9944-9949.
Conway, T. M., John, S. G. and Lacan, F. 2016. Intercomparison of dissolved iron isotope profiles from reoccupation of three GEOTRACES stations in the Atlantic Ocean. Marine Chemistry 183: 50-61.
Fitzsimmons, J. N., Conway, T. M., Lee, J.-M., Kayser, R., Thyng, K. M., John, S. G. and Boyle, E. A. 2016. Dissolved iron and iron isotopes in the Eastern South Pacific Ocean. Glob. Biogeochem. Cycles. 30 (10). 1372-1395.
Middag, R., Séférian, R., Conway, T. M., John, S. G., Bruland, K. W. and de Baar, H. J. W. 2015. Intercomparison of Dissolved Trace Elements at the Bermuda Atlantic Time Series Station. Marine Chemistry 177: 476-479.
Zhang, R., John, S.G., Zhang, J., Ren, J., Wu, Y., Zhu, Z., Liu, S., Zhu, X., Marsay, C., and Wegner, F. Transport and reaction of iron and iron stable isotopes in glacial melt waters on Svalbard near Kongsfjorden: From rivers to estuary to ocean. Earth and Planetary Science Letters, 424: 201-211.
Mawji, E., et al. [135 authors including John, S. G.] (2015). The GEOTRACES Intermediate Data Product 2014. Marine Chemistry 177, 1-8.
Revels, B. N., Zhang, R., Adkins, J. F. and S. G. John. 2015. Fractionation of iron isotopes during leaching of natural particles by acidic and circumneutral leaches and development of an optimal leach for marine particulate iron isotopes. Geochimica et Cosmochimica Acta, 166: 92-104.
Conway, T. M., and John, S. G. 2015. The cycling of iron, zinc and cadmium in the North East Pacific Ocean - insights from stable isotopes. Geochimica et Cosmochimica Acta, 164: 262-283.
Conway, T.M., and S.G. John. 2015. Biogeochemical cycling of cadmium isotopes along a high- resolution section through the North Atlantic Ocean. Geochimica et Cosmochimica Acta, 148: 269-283.
Revels, B.N., Ohnemus, D.C., Lam, P.J., Conway, T.M., and S.G. John. 2015. The isotope signature and distribution of particulate iron in the North Atlantic Ocean. Deep-Sea Research Part II, 116, 321-331.
Fitzsimmons, J.N. Carrasco, G.G., Wu, J., Hatta, M., Measures, C.M., Conway, T.M., John, S.G., and E.A. Boyle. 2015 Partitioning of dissolved iron and iron isotopes into soluble and colloidal phases along the U.S. GEOTRACES North Atlantic Zonal Transect. Deep-Sea Research Part II, 130-151.
Conway, T.M., and S.G. John. 2014. The biogeochemical controls on the distribution of zinc and zinc isotopes in the North Atlantic Ocean. Global Biogeochemical Cycles, 28, doi:10.1002/2014GB004862.
Conway, T.M., and John, S.G. 2014. Quantification of sources of dissolved iron to the North Atlantic Ocean using iron isotopes. Nature, 511: 212-215.
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Janssen, D.J., Conway, T.M., John, S.G., Christian, J., Kramer, D.I., Pedersen, T.F., Cullen, J.T. 2014. An undocumented water column sink for cadmium in open ocean oxygen deficient zones. PNAS, 111: 6888-6893.
John, S.G., and Conway, T.M. 2014. Scavenging is key to the marine biogeochemical cycling of Zinc. EPSL, 394: 159-167.
Black, J.R., John, S.G., Kavner, A. 2014. Coupled effects of temperature and mass transport on the isotope fractionation of zinc during electroplating. Geochimica et Cosmochimica Acta, 124: 272-282.
Conway, T.M., Rosenberg, A.D., Adkins, J.F., and S.G. John. 2013. A new method for precise determination of iron, zinc and cadmium stable isotope ratios in seawater by double-spike mass spectrometry. Analytica Chimica Acta, 793: 44-52.
Homoky, W.B., John, S.G., Conway, T.M., and R.A. Mills. 2013. Distinct iron isotopic signatures and supply from marine sediment dissolution. Nature Communications, 4.
John, S. 2012. Optimizing sample and spike concentrations for isotopic analysis by double-spike ICP-MS. Journal of Analytical Atomic Spectrometry, 27: 2123-2131.
Boyle, E., John, S., Abouchami, W., Adkins, J., Echegoyen-Sanz, Y., Flegal, A.R., Ellwood, M., Fornace, K., Gallon, C., Galer, S., Gault-Ringold, M., Lacan, F., Radic, A., Rehkamper, M., Rouxel, O., Sohrin, Y., Stirling, C., Thompson, C., Vance, D., Xue, Z., and Y.Zhao. 2012. GEOTRACES IC1 (BATS) contamination-prone trace element isotopes Cd, Fe, Pb, Zn, Cu, and Mo intercalibration. Limnology and Oceanography: Methods, 10: 653-665.
John, S.G. and J. Adkins. 2012. The vertical distribution of iron stable isotopes in the North Atlantic near Bermuda. Global Biogeochemical Cycles, 26: GB2034.
John, S.G., Mendez, J., Moffett, J., and J. Adkins. 2012. The flux of iron and iron isotopes from San Pedro Basin sediments. Geochimica et Cosmochimica Acta, 93: 14-29.
Black, J., Crawford, J., John, S., and A. Kavner. 2012. Redox driver stable isotope fractionation. In Aquatic Redox Chemistry, ACS Symposium Series 1071: 345-360.
Mohrig, J.R., Beyer, B.G., Fleischhacker, A.S., Ruthenburg, A.J., John, S.G., Snyder, D.A., Nyffeler, P.T., Noll, R.J., Penner, N.D., Phillips, L.A., Hurley, H.L.S., Jacobs, J.S., Treitel, C., James, T.L., and M.P. Montgomery. 2012. Does Activation of the Anti Proton, Rather than Concertedness, Determine the Stereochemistry of Base-Catalyzed 1,2-Elimination Reactions? Anti Stereospecificity in E1cB Eliminations of B-3-Trifluoromethylphenoxy Esters, Thioesters, and Ketones. The Journal of Organic Chemistry, 77: 2819-2828.
Sivan, O., Adler, M., Pearson, A., Gelman, F., Bar-Or, I., John, S.G., and W. Eckert. 2011. Geochemical evidence for iron-mediated anaerobic oxidation of methane. Limnology and Oceanography, 56: 1536-1544.
John, S.G. and J.F. Adkins. 2010. Analysis of dissolved iron isotopes in seawater. Marine Chemistry, 119: 65-76.
John, S.G., Mendez, C.B., Deng, L., Poulos, B., Kauffman, A.K.M., Kern, S., Brum, J., Polz, M.F., Boyle, E.A., and M.B. Sullivan. 2010. A simple and efficient method for concentration of ocean viruses by chemical flocculation. Environmental Microbiology Reports.
Black, J.R., John, S., Young, E.D., and A. Kavner. 2010. Effect of temperature and mass transport on transition metal isotope fractionation during electroplating. Geochimica et Cosmochimica Acta, 74(18): 5187-5201.
John, S.G., Rouxel, O.J., Craddock, P.R., Engwall, A.M., and E.A. Boyle. 2008. Zinc stable isotopes in seafloor hydrothermal vent fluids and chimneys. Earth and Planetary Science Letters, 269: 17-28.
Kavner, A., John, S.G., Sass, S., and E.A. Boyle. 2008. Redox-driven stable isotope fractionation in transition metals: Application to Zn electroplating. Geochimica et Cosmochimica Acta, 72: 1731-1741.
Dhungana, S., Michalczyk, R., Boukhalfa, H., Lack, J.G., Koppisch, A.T., Fairlee, J.M., Johnson, M.T., Ruggiero, C.E., John, S.G., Cox, M.M., Browder, C.C., Forsythe, J.H., Vanderberg, L.A., Neu, M.P., and L.E. Hersman. 2007. Purification and characterization of rhodobactin: a mixed ligand siderophore from Rhodococcus rhodochrous strain OFS. Biometals, 20: 853-867.
John, S.G., Park, J.G., Zhang, Z., and E.A. Boyle. 2007. The isotopic composition of some common forms of anthropogenic zinc. Chemical Geology, 245: 61-69.
John, S.G., Geis, R.W., Saito, M.A., and E.A. Boyle. 2007. Zinc isotope fractionation during high-affinity and low-affinity zinc transport by the marine diatom Thalassiosira oceanica. Limnol. Oceanogr., 52(6): 2710-2714.
Repeta, D.J., Hartman, N.T., John, S., Jones, A.D., and R. Goericke. 2004. Structure Elucidation and Characterization of Polychlorinated Biphenyl Carboxylic Acids as Major Constituents of Chromophoric Dissolved Organic Matter in Seawater. Environ. Sci. Technol, 38: 5373-5378.
John, S.G., Ruggiero, C.E., Hersman, L.E., Tung, C., and M.P. Neu. 2001. Siderophore Mediated Plutonium Accumulation by Microbacterium flavescens (JG-9). Environ. Sci. Technol., 35.