Behnaz Hosseini Photo


2019 - Present: Ph.D. Earth Sciences, Montana State University

2017: B.A. Geology, minor in Geospatial Information Science and Technology, University of California, Berkeley


Dr. Madison Myers

Research Project:

The cold seal, the Cook Inlet, and the Yellowstone Caldera: Interrogating crystals and melts for timescales of syneruptive magma decompression and ascent in explosive volcanic eruptions

Research Project Summary:

My research aims to unravel the timescales of late-stage (e.g., seconds to hours prior to eruption) eruptive processes such as magma decompression and ascent. These processes and the timescales over which they occur exert a strong control on the ultimate style (e.g., explosive vs. effusive) of a volcanic eruption, and therefore have important implications for hazard monitoring, mitigation, and response. I use a combination of experimental (high P-T decompression in a cold seal pressure vessel), numerical (1D diffusion modeling), analytical (FTIR, EPMA, LA-ICP-MS), and field techniques to understand decompression and ascent timescales. I primarily use the time-dependent diffusion of volatiles (H2O, CO2) and trace elements in melts and crystals (i.e., geospeedometry), applied to both explosive silicic caldera-forming systems (most destructive) and intermediate arc systems (most frequent).

Email Address:

[email protected] 

Selected Research/Professional/Volunteer Experience:

2017 - 2019: Guest Scientist, Geology Program, Yellowstone Center for Resources, Yellowstone National Park

2018: Volunteer Field/Lab Assistant, U.S. Geological Survey, Cascades Volcano Observatory

2015 - 2017: Undergraduate Researcher, UC Berkeley Department of Earth and Planetary Science

2015 - 2016: Lab Assistant, Cosmochemistry Group, UC Berkeley Space Science Laboratory

2014: Cave Guide, U.S. Forest Service, Tongass National Forest, Prince of Wales Island

Selected Teaching Experience:

2020 - 2021: Igneous and Metamorphic Petrology, Montana State University

2019: Mineralogy and Optical Mineralogy, Montana State University

2018: Advanced Field Course, UC Berkeley

2017: The Planet Earth, UC Berkeley

2016: Field Geology and Digital Mapping, UC Berkeley

Selected Certifications/Awards/Grants

2020: Harold T. Stearns Fellowship Award, Geological Society of America

2020: Graduate Student Research Grant, Geological Society of America

2020: Grant for Student Research in Mineralogy and Petrology, Mineralogical Society of America

2020: Wilderness First Responder, National Outdoor Leadership Society (certified since 2012)

2017, 2018, 2019: Segal AmeriCorps Education Award

2018: E-An Zen Fund for Geoscience Outreach Grant, Geological Society of America

2018: Certificate for Distinguished Teaching, UC Berkeley

2018: Emergency Medical Responder, National Registry of Emergency Medical Technicians

2016: Undergraduate Research Apprentice Program (URAP) Summer Award, UC Berkeley

2014: President’s Volunteer Service Award

Selected Publications (-)/Conference Abstracts (+)

(-) Churchill, D.M., Manga, M., Hurwitz, S., Peek, S., Damby, D.E., Conrey, R., Wood, J.R., McCleskey, R.B., Keller, W.E., Hosseini, B., Hungerford, J. (2021). The structure and volume of large geysers in Yellowstone National Park, USA and the mineralogy and chemistry of their silica sinter deposits. Journal of Volcanology and Geothermal Research (submitted).

(+) Hosseini, B., Myers, M.L., Watkins, J.M., Saalfeld, M.A. (December 2020). Are embayments reliable timekeepers? Insights from decompression experiments and 1D numerical models, AGU Fall Meeting Virtual.

(-) Hurwitz, S., McCleskey, R.B., Bergfeld, D., Peek, S.E., Susong, D.D., Roth, D.A., Hungerford, J.D.G., White, E.B., Harrison, L.N., Hosseini, B., Vaughan, R.G., Hunt, A.G., Paces. J.B. (2019). Hydrothermal activity in the southwest Yellowstone Plateau Volcanic Field. Geochemistry, Geophysics, Geosystems, 21, 1-26.

(+) Hosseini, B. (September 2019). Providing public access to thermal infrared cameras in Yellowstone National Park's hydrothermal areas, GSA Annual Meeting, Phoenix, AZ.

(-) Manga, M., Fauria, K.E., Lin, C., Mitchell, S.J., Jones, M., Conway, C., Degruyter, W., Hosseini, B., Carey, R., Cahalan, R., Houghton, B.F., White, J.D.L., Jutzeler, M., Soule, S.A., Tani, K. (2018). The pumpce raft-forming 2012 Havre submarine eruption was effusive. Earth and Planetary Science Letters, 489, 49-58.

(+) Fauria, K.E., Wei, Z., Hosseini, B., Manga, M., Carey, R., Soule, S.A. (January 2017). Partitioning pumice into rafts and submarine deposits during the 2012 eruption of Havre submarine volcano, AGU Chapman Conference on Submarine Volcanism, Hobart, Tasmania, Australia.

(+) Hosseini, B., Fauria, K.E., Manga, M., Carey, R., Soule, S.A. (December 2016). Control of volume and porosity on pumice flotation time: a case study with pumice from the Havre caldera volcano, AGU Fall Meeting, San Francisco, CA.


2020 – Present: Mineralogical Society of America (MSA)

2019 - Present: Association for Women Geoscientists (AWG)

2019 - Present: American Association for the Advancement of Science (AAAS)

2018 - Present: International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI)

2015 - Present: American Geophysical Union (AGU)

2013 - Present: Geological Society of America (GSA)