Brad Peters
Senior Scientific Assistant & Lecturer
Institute of Geochemistry and Petrology
ETH Zürich
Sunrise over Piton des Neiges, La Réunion
I grew up in the United States and have my Earth science roots at the College of William and Mary in Virginia. I attended Scripps Institution of Oceanography in San Diego for graduate school and received my MS in 2013 and my Ph.D. in 2016. After that, I moved back east for a postdoctoral fellowship at the Department of Terrestrial Magnetism, Carnegie Science. Now, I'm a researcher at ETH Zürich in the Isotope Geochemistry and Cosmochemistry group. I work around people with a lot of different research interests here, which is a great way to learn more about our Earth and solar system!
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Professional appointments
2020-present Senior Scientific Assistant, Lecturer, ETH Zürich
2019-2020 ETH Postdoctoral Fellow
2016-2018 Postdoctoral Fellow, Department of Terrestrial Magnetism, Carnegie Institution for Science
Education
2016 Ph.D., Scripps Institution of Oceanography
2013 M.S., Scripps Institution of Oceanography
2011 B.S. with Honors, College of William & Mary
Invited lectures
12/2024 Mohanlal Sukhadia University, Udaipur, India
05/2024 Institute for Geochemistry and Petrology, ETH Zürich
09/2023 GeoBerlin 2023, Session 2.03-3 keynote lecture
01/2023 Department of Geology, Mohanlal Sukhadia University, Udaipur, India
06/2020 Goldschmidt2020 Meeting Session 05f: Mantle Structure and Composition: The View from Intraplate Volcanism
02/2018 Department of Geology, College of William & Mary
01/2018 Department of Mineral Sciences, National Museum of Natural History
03/2017 Department of Terrestrial Magnetism, Carnegie Institution for Science
03/2017 Department of Atmospheric, Oceanic, and Earth Sciences, George Mason University
02/2017 Department of Geology, University of Maryland
09/2015 Lamont-Doherty Earth Observatory, Columbia University
Selected awards & Funding (total ca. $1.4M)
2020-2024 SNF Ambizione Grant
2019-2021 ETH Zürich Postdoctoral Fellowship
2016-2018 Carnegie Postdoctoral Fellowship
2015-2016 Devendra & Aruna Lal Fellowship
2011-2012 University of California Regents Fellowship
2011 Naval Research Enterprise Internship
2007-2011 James Monroe Scholarship
Instructional Activity
Teaching Development
2019 Foundations of teaching & learning, ETH Zürich
2017 Flipping a geochemistry classroom using team-based learning, Goldschmidt Conference
Age groups 5-16
2010 "Be a Scientist" (course teaching assistant)
2009 "Volcanoes: Hawaii" (course teaching assistant)
Upper-division undergraduate
2014 Introduction to Petrology (teaching assistant)
2012-2014 Introduction to geological field methods (teaching assistant)
2012 Introduction to geochemistry (teaching assistant)
Graduate
2019 Concepts and quantitative methods in geochemistry (lecturer)
Peer-reviewed publications (**supervised student or *student author; ^^supervised postdoc or ^postdoc author)
Visit my Google Scholar page
In review
Peters, B.J., **Halfar, M.C., **Rundhaug, C.J., Castillo, P., Schönbächler, M., Hadean-aged felsic sediements recycled through the deep mantle by early plate tectonics. In review, 2024.
^^Ravindran, A., Peters, B.J., Mezger, K., ^Hasenstab-Dübeler, E., Kamal, M., Schönbächler, M., Distinct Hadean mantle sources of felsic and mafic terranes horizontally juxtaposed in the Paleoarchean. In review, 2024.
**Sieger, L., Peters, B.J., Giuliani, A., Schönbächler, M., Pre-Cordilleran mantle metasomatism preserved in alkali basalts of Isla Isabel, México. In review, 2024. Preprint available on EarthArXiv, doi: 10.31223/X5JT5J
Last 5 years
Aktağ, A., Sayit, K., Furman, T., Peters, B.J. (2024) Delamination magmatism in Eastern Anatolia: a geochemical perspective. Geochemistry, Geophysics, Geosystems, 25(5), doi: 10.1029/2024GC011444
Hunt, A.C., Peters, B., Davies, C., Schönbächler, M. (2024) The theory and applications of ion exchange and extraction chromatography in geochemistry. In Treatise on Geochemistry, 3rd edition, 123-146, doi: 10.1016/B978-0-323-99762-1.00015-2
*Herret, M.-T., Peters, B.J., Castillo, P., ^Kim, D., Mundl-Petermeier, A. (2023) A spatially variable link between Hadean-aged geochemical signatures and geophysically-detected mantle domains. Chemical Geology, 639, 121727, doi: 10.1016/j.chemgeo.2023.121727
**Halfar, M.C., Peters, B.J., Day, J.M.D., Schönbächler, M. (2023) An isotopically enriched mantle component in the source of Rodrigues, Réunion volcanic hotspot. Geochimica et Cosmochimica Acta, 354, 32-47, doi: 10.1016/j.gca.2023.06.030
Peters, B.J., Mundl-Petermeier, A., ^Finlayson, V.A. (2023) A multi-siderophile connection between volcanic hotspots and Earth’s core. Earth and Planetary Science Letters, 618, 118285, doi: 10.1016/j.epsl.2023.118285
^Fitzpayne, A., Giuliani, A., Howarth, G.H., Peters, B.J., Fehr, M.A., Maas, R. (2023) Major-, trace-element and Sr-Nd-Hf isotope geochemistry of diamondiferous dykes from Tonguma and Koidu, Sierra Leone: Highly micaceous kimberlites formed by assimilation of metasomatized lithospheric mantle rocks. Chemical Geology, 630, 121475, doi: 10.1016/j.chemgeo.2023.121475
*Aktağ, A., Sayit, K., Peters, B.J., Furman, T., Rickli, J. (2022) Interaction of C-like aesthenospheric melts and sub-continental lithosphere beneath eastern Turkey. Lithos, 430, 106849, doi: 10.1016/j.lithos.2022.106849
Day, J.M.D., *Reed, K.R., ^Pringle, E.A., *Mendenhall, B., Peters, B.J. (2021) Temporally variable crustal contributions to primitive mantle-derived Columbia River Basalt Group magmas. Chemical Geology, 572, 120197, doi: 10.1016/j.chemgeo.2021.120197
Peters, B.J., Mundl-Petermeier, A., Carlson, R.W., Walker, R.J., Day, J.M.D. (2021) Combined lithophile-siderophile isotopic constraints on Hadean processes preserved in OIB sources. Geochemistry, Geophysics, Geosystems, 22(3), doi: 10.1029/2020GC009479
Peters, B.J., Mundl-Petermeier, A., Horan, M.F., Carlson, R.W., Walker, R.J. (2019) Chemical separation of tungsten and other trace elements for TIMS isotope ratio measurements using organic acids. Geostandards and Geoanalytical Research, 43, 245-259. doi: 10.1111/ggr.12259
Peters, B.J., Shahar, A., Carlson, R.W., Day, J.M.D. Mock, T.D. (2019) A sulfide perspective on iron isotope fractionation in ocean island basalt petrogenesis. Geochimica et Cosmochimica Acta, 245, 59-78. doi: 10.1016/j.gca.2018.10.015