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Washington State University

Johannes Haemmerli

Assistant Professor

Google Scholar:


Ph.D. James Cook University, Australia
MSc. University of Bern, Switzerland
BSc. University of Bern, Switzerland

Research Interests:

I am using the geochemical composition of minerals to gain insights into crustal processes such as fluid flow, element mobility (e.g., base metals), and the behavior of halogens and other volatiles during metamorphic processes in order to better understand their global cycles. In order to unlock geochemical archives of minerals, I use a wide range of micro-analytical methods including SIMS, FTIR, EPMA, LA-MC-ICP-MS.


SOE 350 “Earth Materials”
SOE 356 “Magmatic Processes”
SOE 357 “Metamorphic Processes”

Current Graduate Students:

  • Isabelle Rein
  • Cameron Wallenbrock
  • Elizabeth Urban

Current Undergraduate Students:

  • Ben Asan
  • Marcus Foster (McNair student)
  • Isabel Luke

Publications (5 most recent):

Parra-Avila, L.A., Hammerli, J., Kemp, A.I.S., Rohrlach, B., Loucks, R., Lu, Y., Williams, I.S., Martin, L., Roberts, M.P., and Fiorentini, M.L., 2022, The long-lived fertility signature of Cu–Au porphyry systems: insights from apatite and zircon at Tampakan, Philippines: Contributions to Mineralogy and Petrology, v. 177, p. 18, doi:10.1007/s00410-021-01878-2.

Hammerli, J., Greber, N.D., Martin, L., Bouvier, A.-S., Kemp, A.I.S., Fiorentini, M.L., Spangenberg, J.E., Ueno, Y., and Schaltegger, U., 2021a, Tracing sulfur sources in the crust via SIMS measurements of sulfur isotopes in apatite: Chemical Geology, v. 579, p. 120242, doi:10.1016/j.chemgeo.2021.120242.

Hammerli, J., Hermann, J., Tollan, P., and Naab, F., 2021b, Measuring in situ CO2 and H2O in apatite via ATR-FTIR: Contributions to Mineralogy and Petrology, v. 176, p. 105, doi:10.1007/s00410-021-01858-6.

Hammerli, J., and Kemp, A.I.S., 2021, Combined Hf and Nd isotope microanalysis of co-existing zircon and REE-rich accessory minerals: High resolution insights into crustal processes: Chemical Geology, v. 581, p. 120393, doi:10.1016/j.chemgeo.2021.120393.

Kendall-Langley, L.A., Kemp, A.I.S., Grigson, J.L., and Hammerli, J., 2020, U-Pb and reconnaissance Lu-Hf isotope analysis of cassiterite and columbite group minerals from Archean Li-Cs-Ta type pegmatites of Western Australia: Lithos, v. 352–353, p. 105231, doi:10.1016/j.lithos.2019.105231.