Publications

2025:

• McPaul, K., Wankel, S.D., and Seltzer, A.M. (2025). A high-precision technique for dissolved N2 isotope analysis in aquatic systems: biogeochemical applications and determination of solubility equilibrium isotope effects. Rapid Communications in Mass Spectrometry 

• Tyne, R.L., Broadley, M.W., Bekaert, D.V., Barry, P.H., Warr, O., Langman, J.B., Musan, I., Jenkins, W.J., and Seltzer, A. (2025). Hidden flux of lithospheric volatiles in shallow young groundwater. Nature Geoscience. 

• Seltzer, A., Tyne, R.L., Musan, I., Langman, J.B., Amaya, D.J., Karnauskas, K.B., Lora, J.M., Bowen, G.J., Barry, P.H., Costantini, M., Broadley, M.W., Jenkins, W.J., Bekaert, D.V. (2025). Past aquifer responses to climate recorded by fossil groundwater. Science Advances.

• Broadley, M.W., Barry, P.H., Tyne, R.L., Bekaert, D.V., Karolyte, R., Hudak, M., McPaul, K., Ramirez, C., Curtice, J., Lloyd, K., Ballentine, C., Marty, B., Young, E., and Seltzer, A. (2025). Noble gas isotopes and nitrogen isotopologues reveal deep sources and subsurface fractionation in Yellowstone gases. ACS Earth and Space Chemistry. 

• Jenkins, W.J., Doney, S.C., Seltzer, A.M., German, C.R., Lott, D.E., and Cahill, K.L. (2025). A North Pacific Meridional Section (U.S. GEOTRACES GP15) of Helium Isotopes and Noble Gases II: Shallow Distributions. Journal of Geophysical Research – Oceans.

• Marty, B., Contamine, D., Bekaert, D.V., Lastes, A., Pik, R., Labidi, J., Young, E.D., Broadley, M.W., Barry, P.H., Byrne, D.J., and Seltzer, A. (2025). Uncovering the xenon isotope composition of continental rift magmas: Insight from analysis of geothermal gases at Homa Hills, Kenya. Earth and Planetary Science Letters.

• Barry, P.H., de Moor, J.M., Seltzer, A., Bekaert, D.V., Patil, K., Bartels, C.G.E., Young, E.D., Longworth, B.E., Broadley, M.W., Barosa, B., Bastianoni, A., Bastoni, D., Cascone, M., Turner, S.J., Tyne, R.L., Kumar, N., Anderson, M., Li, K., Curtice, J., Jessen, G.L., Ramírez, C.J., Chiodi, A., Aguilera, F., Masías Alvarez, P.J., Marty, B., Lloyd, K.G., Giovanelli, D. (2025). Carbon, nitrogen, and noble gas isotopes reveal deep volatiles throughout the CVZ of the Andes. Earth and Planetary Science Letters.

2024:

• Bekaert, D.V., Caracausi A., Caro, G., Broadley, M., Bryne, D., Barry, P., Marty, B., and Seltzer A. (2024). Primordial and 244Pu-derived xenon missing from Earth's convecting mantle. Earth and Planetary Science Letters. (Download PDF)

• Seltzer, A., Davidson, P., Shackleton, S., Nicholson, D., and Khatiwala, S. (2024). Global Ocean Cooling of 2.3°C During the Last Glacial Maximum. Geophysical Research Letters. (Download PDF)

• Jenkins, W.J., Seltzer, A., Gebbie, G., and German, C.R.  (2024). Noble gas evidence of a millennial-scale deep North Pacific palaeo-barometric anomaly. Nature Geoscience. 

• Ram., R., Adar, E., Yechieli, Y., Yokochi, R., Aeschbach, W., Armon, M., Solomon, D., Purtschert, R., Seltzer, A., Urbach, K., Bishof, M., Mueller, P., Zappala, J., Jiang, W., Lu, Z.-T., and Reznik, I. (2024). Deep desert aquifers as an archive for Mid- to Late Pleistocene hydroclimate: An example from the southeastern Mediterranean. Science of the Total Environment.

• Bekaert, D.V., Barry, P.H., Krantz, J.A., Curtice, J., Blusztajn, J., Hudak, M., Seltzer, A., Broadley, M.W., Wanless, V.D., Jones, M.R., Soule, S.A., Mittelsteadt, E., and Kurz, M.D. (2024). A carbon, nitrogen, and multi-isotope study of basalt glasses near 14°N on the Mid-Atlantic Ridge. Part B: Mantle source heterogeneities. Geochemica et cosmochmica acta. 

• Bekaert, D.V., Barry, P.H., Krantz, J.A., Curtice, J., Blusztajn, J., Hudak, M., Seltzer, A., Broadley, M.W., Wanless, V.D., Jones, M.R., Soule, S.A., Mittelsteadt, E., and Kurz, M.D. (2024). A carbon, nitrogen, and multi-isotope study of basalt glasses near 14°N on the Mid-Atlantic Ridge. Part A: Degassing processes. Geochemica et cosmochmica acta. 

• Kageyama, M., Braconnot, P., Chiessi, C., Rehfeld, K., Ait-Brahim, Y., Dutsch, M., Gwinneth, B., Hou, A., Loutre, M., Hendrizan, M., Meissner, K., Mongwe, P., Otto-Bliesner, B., Pezzi, L., Rovere, A., Seltzer, A.M., Sime, L., and Zhu, J. (2024). Lessons from paleoclimates for recent and future climate change: opportunities and insights. Frontiers in Climate.

2023:

• Seltzer, A.,  Shackleton, S., and Bourg, I. (2023). Solubility Equilibrium Isotope Effects of Noble Gases in Water: Theory and Observations. Journal of Physical Chemistry B. (Download PDF)

• Seltzer, A., Nicholson, D., Smethie, W., Tyne, R., Le Roy, E., Stanley, R., Stute, M., Barry, P., McPaul, K., Davidson, P., Chang, B., Rafter, P., Lethaby, P., Johnson, R., Khatiwala, S., and Jenkins, W. (2023). Dissolved gases track deep ocean ventilation processes in the deep North Alantic. Proceedings of the National Academy of Sciences. (Download PDF)

• Bekaert, D., Barry, P., Broadley, M., Byrne, D., Marty, B., Ramirez, C., de Moor, M., Rodriguez, A., Hudak, M., Subhas, A., Halldorsson, S., Stefansson, A., Caracausi, A., Lloyd, K., Giovanelli, D., and Seltzer, A. (2023). Ultrahigh-precision noble gas isotope analyses reveal pervasive subsurface fractionation in hydrothermal systems. Science Advances.

• Shackleton, S., Seltzer, A., Baggenstos, D., and Lisiecki, L. (2023). Benthic δ18O records Earth’s energy imbalance. Nature Geoscience.

• Jenkins, W., Doney, S., Seltzer, A., German, C., Lott, D., and Cahill, C. (2023). A North Pacific meridional section (U.S. GEOTRACES GP15) of helium isotopes and noble gases I: Deep water distributions. Global Biogeochemical Cycles.

• Bekaert, D., Blard, P.-H., Raolt, Y., Pik, R., Kipfer, R., Seltzer, A., Legrain, E., and Marty, B. (2023). Last glacial maximum cooling of 9 °C in continental Europe from a 40 kyr-long noble gas paleothermometry record. Quaternary Science Reviews.

• Ng, J., Tyne, R., Seltzer, A., Noyes, C., McIntosh, J., and Severinghaus, J. (2023). A new large volume equilibration method for high precision measurements of dissolved noble gas stable isotopes. Rapid Communications in Mass Spectrometry. (Download PDF)

• Buizert, C., Shackleton, S., Severinghaus, J., Roberts, W., Seltzer, A., et al. (2023) The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic torminess possibly linked to ITCZ movement through the last deglaciation. Climate of the Past.

• Seltzer, A., Blard, P.-H., Sherwood, S., and Kageyama, M. (2023). Terrestrial amplification of past, present, and future climate change. Science Advances. (Download PDF)

• Cardoso, C., Russier, E., Marty, B., Pik, R., Bekaert, D., Seltzer, A., Broadley, M., Bryne, D., Rigaudier, T., Geraud, Y., Tarantola, A., and Hauville, B. (2023) Helium isotope evidence for cryptic magmatism along Central France. Quaternary Geology. 

• Ruff, S., Humez, P, Hrabe de Angelis, I., Diao, M., Nightengale, M., Cho, S., Connors, L., Kuloyo, O., Seltzer, A., Bowman, S., Wankel, S., McClain, C., Mayer, B., Strous, M. (2023). Hydrogen and dark oxygen drive microbial productivity in diverse groundwater ecosystems. Nature Communications.

2022:

• Seltzer, A. and Bekaert, D. (2022). A unified method for measuring noble gas isotope ratios in air, water, and volcanic gases via dynamic mass spectrometry. International Journal of Mass Spectrometry. (Download PDF)

• Seltzer, A. and Tyne, R. (2022). Retrieving a “Weather Balloon” From the Last Ice Age. AGU Advances. (Invited Viewpoint)

• Bekaert, D., Curtice, J., Meier, M., Byrne, D., Broadley, M., Seltzer, A., Barry, P., Kurz, M., and Neilsen, S. Determining the noble gas cosmic-ray exposure ages of 23 meteorites (8 chondrites and 15 achondrites) from modelling and empirical methods. Meteoritics & Planetary Science. 

• Ram, R., Solomon, D. K., Yokochi, R., Burg, A., Purtschert, R., Seltzer, A. M., et al. (2022). Large-scale paleo water-table rise in a deep desert aquifer recorded by dissolved noble gases. Journal of Hydrology.

• Amaya, D., Seltzer, A., Karnauskas, K., Lora, J., Zhang, X., and DiNezio, P. (2022). Air-sea coupling shapes North American hydroclimate response to ice sheets during the Last Glacial Maximum. Earth and Planetary Science Letters.

• Barry, P. H., De Moor, J. M., Chiodi, A., Aguilera, F., Hudak, M. R., Bekaert, D. V., Turner, S. J., Curtice, J., Seltzer, A., et al. (2022). The Helium and Carbon Isotope Characteristics of the Andean Convergent Margin. Frontiers in Earth Science.

2021:

• Seltzer, A., Ng, J., Aeschbach, W., Kipfer, R., Kulongoski, J.T., Severinghaus, J.P., and Stute, M. (2021). Widespread 6⁰C Cooling on Land During the Last Glacial Maximum. Nature. (Download PDF)

• Seltzer, A., Bekaert, D., Barry, P., Durkin, K., Mace, E., Aalseth, C., Zapalla, J., Mueller, P., Jurgens, B., and J. Kulongoski (2021). Groundwater Residence Times Obscured by Anthropogenic Carbonate Dissolution. Science Advances. (Download PDF)

• Seltzer, A., Krantz, J., Ng, J., Danskin, W., Bekaert, D., Barry, P., Kimbrough, D., Kulongoski, J and J. Severinghaus (2021). The Triple Argon Isotope Composition of Groundwater on Ten-Thousand-Year Timescales. Chemical Geology. (Download PDF)

• Barry, P., Bekaert, D., Krantz, J., Halldorsson, S., de Moor, M., Fischer, T., Werner, C., Kelly, P., Seltzer, A., Franz, B., and J. Kulongoski (2021). Helium-Carbon Systematics of Groundwaters in the Lassen Peak Region. Chemical Geology.

• Bekaert, D., Gazel, E., Turner, S., Behn, M., de Moor, M., Zahirovic, S., Manea, V., Hoernle, K., Fischer, T., Hammerstrom, A., Seltzer, A., Kulongoski, J., Patel, B., Schrenk, M., Halldorsson, S., Nakagawa, M., Ramirez, C., Krantz, J., Yucel, M., Ballentine, C., Giovanelli, D., Lloyd, K., and P. Barry (2021). High 3He/4He in central Panama reveals a distal connection to the Galápagos plume. Proceedings of the National Academy of Sciences.

2020:

• Barry, P., Negrete-Aranda, R., Spelz, R., Seltzer, A., Bekaert, D., Virrueta, C., and J. Kulongoski (2020). Volatile sources, sinks and pathways: A helium‑carbon isotope study of Baja California fluids and gases. Chemical Geology.

2019:

• Seltzer, A., Ng, J., Kulongoski, J., Danskin, W., Gannon, R., Stute, M., and J. Severinghaus (2019). Deglacial water-table decline in Southern California recorded by noble gas isotopes. Nature Communications. (Download PDF)

• Barry, P., Nakagawa, M., Giovanelli, D., de Moor, J., Schrenk, M., Seltzer, A. , Manini, E., Fattorini, D., di Carlo, M., Regoli, F., Fullerton, K., and K. Lloyd (2019). Helium, inorganic and organic carbon isotopes of fluids and gases across the Costa Rica convergent margin. Scientific Data.

• Seltzer, A., Pavia, F., Ng, J., and J. Severinghaus (2019). Heavy noble gas isotopes as new constraints on the ventilation of the deep ocean. Geophysical Research Letters. (Download PDF)

• Seltzer, A., Ng, J., and J. Severinghaus (2019). Precise determination of Ar, Kr and Xe isotopic fractionation due to diffusion and dissolution in fresh water. Earth and Planetary Science Letters. (Download PDF) 

2017:

• Seltzer, A., Buizert, C., Baggenstos, D., Brook, E., Ahn, J., Yang, J.-W., and  J. Severinghaus (2017). Does δ18O of O2 record meridional shifts in tropical rainfall? Climate of the Past. (Download PDF) 

• Seltzer, A., Severinghaus, J., Andraski, B., and D. Stonestrom (2017). Steady-state fractionation of heavy noble gas isotopes in a deep unsaturated zone. Water Resources Research. (Download PDF) 

2015:

• Seltzer, A., Stute, M., Morgenstern, U., Stewart, M., and J. Schaefer (2015). Mean annual temperature in new zealand during the last glacial maximum derived from dissolved noble gases in groundwater. Earth and Planetary Science Letters. (Download PDF)