School of the EnvironmentJohannes Hämmerli

Johannes Hämmerli

  1. Assistant Professor
  2. Director, Peter Hooper GeoAnalytical Lab
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 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”
  • SOE 357 “Metamorphic Processes”

Current Graduate Students

  • Lily Wallenbrock
  • Mollie Pope
  • Elizabeth Urban
  • Brianna Dowler
  • Shane Scoggin

Current Undergraduate Students

  • Marcus Foster (McNair Student)
  • Sara Rodriguez
  • Alex Aiken

Publications (5 most recent)

 

  • 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.
  • Hammerli, J. Jenkins, D.J., Collins, D.P. (2024) Exchange experiments for chlorine and bromine partitioning in scapolite at variable fluid salinities, pressures, and temperatures: Implications for tracing crustal fluid sources via Cl/Br ratios in scapolite. Contributions to Mineralogy and Petrology
  • Shulaker, D., Gordon, S., Hammerli J., DesOrmeau, J. (2024) Fluid-driven mass transfer during retrograde metamorphism and exhumation of the UHP Western Gneiss Region terrane, Norway. G3
  • Tucker, N., Hammerli, J. Kemp, A.I.S., Rowe, M. L., Gray, C.M., Jeon, H., Whitehouse, M., Roberts, M. (2024) Ultra-high thermal gradient granulites in the Narryer Terrane, Yilgarn Craton, Western Australia, provide a window into the composition and formation of Archean lower crust. Journal of Metamorphic Geology