School of the EnvironmentJohannes Hämmerli

Johannes Hämmerli

  1. Program Lead Earth Sciences
  2. Assistant Professor
Email Addressjohannes.haemmerli@wsu.edu
LocationWebster Physical Sciences Building

Biography

Google Scholar

Education

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

Research Interests

I use the geochemical composition of minerals to gain insights into crustal processes such as fluid flow, element mobility (e.g., base and precious metals), and the behavior of halogens and other volatiles during igneous and metamorphic events, with the goal of better understanding their roles in global geochemical cycles and the formation of mineral resources. This work has direct applications to economic geology, particularly in unraveling the processes that control ore deposit formation. To unlock the geochemical archives preserved in minerals, I apply a wide range of micro-analytical techniques, including SIMS, FTIR, EPMA, and LA-MC-ICP-MS.

Teaching

  • SOE 350 “Earth Materials”
  • SOE 356 “Magmatic Processes and Critical Minerals”
  • SOE 357 “An Introduction to Metamorphic Rocks and Minerals and How They Impact Our World”

Current Graduate Students

  • Johan Bedoya
  • Mollie Pope
  • Shane Scoggin

Current Undergraduate Students

  • Alex Aiken

Publications (5 most recent)

 

  • Rein, I., Hammerli, J., Lewis, R.S., Foster, M., Boroughs, S. (2026). Sequestration of chlorine in scapolite during metamorphism and the formation and role of residual bittern brines for mineralized systems in the Mesoproterozoic Belt Supergroup, North America. Chemical Geology
  • Scoggin, S.H., Johnson, A.C., Ibañez-Mejia, M., Tissot, F.L.H., Memeti, V., Chapman, J.B., Hammerli, J. (2026). Titanium isotope fractionation in the Tuolumne Intrusive Complex: implications for interpreting the Ti isotope record of the continental crust. Geochimica et Cosmochimica Acta
  • Kerstanski, A.J., Jenkins, D.M., Hammerli, J. (2026). Upper-pressure stability and thermochemical properties of synthetic marialite and its application to determining paleobrine NaCl concentrations. Contributions to Mineralogy and Petrology
  • Hammerli, J. Kemp, A.I.S., Bouvier, A-S., Rudnick, R.L., Boivin, P., Holder, R.M., Chacko, T., Blake, K. (2025) The role of scapolite-bearing granulites in sequestering and releasing sulfur: implications for S isotope signatures of crustal fluids during lower-crustal exhumation. Geochimica et Cosmochimica Acta
  • Jenkins, D.J., Matteucci, J., Kerstanski, A., Hammerli, J., Shanks, K.S., Wang, Z. (2025) Thermophysical properties of synthetic marialite. Physics and Chemistry of Minerals.