Two New Department Chairs
June 19, 2025
Above: Aurora Clark, Dept. of Chemistry and Gabe Bowen, Dept of Geology & Geophysics. Credit: Todd Anderson
Aurora Clark and Gabriel Bowen assume positions as chair in the Department of Chemistry and Department of Geology & Geophysics, respectively, beginning July 1, 2025
Aurora Clark

Aurora Clark
Aurora Clark has been announced as the new chair of the Department of Chemistry at the U beginning July 1, replacing interim chair Peter Armentrout. She brings to the role computational expertise, interdisciplinary leadership experience and a commitment to protecting scientific innovation.
"I've had roles that are adjacent to being a chair, and am excited to expand upon those experiences," she explains, referencing her previous positions as director of an interdisciplinary materials science and engineering Ph.D. program and of a high-performance computing center. Most recently, she helped establish the Joint Institute for Nuclear Science and Technology between Pacific Northwest National Lab and Washington State University where she was on faculty before arriving in Utah.
‘A couple fires and one explosion’
Clark's journey began in a very rural area, where "the nearest hospital was an hour and a half away." Raised by a mother who was a spinner, weaver and natural fiber artist, Clark jokes, "My mom was a dye chemist." Paired with her education in a Montessori School, her unusual if not unconventional upbringing proved formative. " I think that background inspired a lot of creative thought, curiosity and adventurous spirit," she says.
Her path toward computational work was in part propelled by memorable laboratory mishaps. As an undergraduate at Central Washington University, Clark started in synthetic organic chemistry but had "a couple fires and one explosion." A summer research experience at University of Southern California reinforced this message when she accidentally created dangerously explosive frozen oxygen. “So really, the universe told me, in many, many ways, that my love of chemistry had to be manifested using computers."
Allaying separation anxieties
Today, Clark leads groundbreaking research in chemical separations of critical minerals and nuclear materials. "The 15 lanthanide elements that make up most critical materials have similar chemical reactivity and often occur in mixtures with each other," Clark explains. "However, the differences in the way their electrons are arranged leads to important uses as high-field magnets in electronics or as qubits in quantum computers. Separating one lanthanide element from others, or from complex mixtures that like E-waste, is notoriously challenging."
What sets Clark's work apart is her innovative approach to data analysis. Her team develops "physics informed data analysis and data science" tools that are specifically adapted for the high dimensional and time dependent data found in chemical processes, rather than applying generic analytical approaches.
Modeling chemical processes on a computer provides crucial molecular-level insights that are often impossible to obtain experimentally. Such modeling can be particularly valuable when studying radioactive materials, allowing researchers to use computers to "decrease the number of experiments that need to be done and increase the safety of experimental scientists."
Innovation first
Clark brings a thoughtful approach to balancing research with administrative responsibilities. Her lab emphasizes mentorship infrastructure, and she sees her term as chair as protecting the broader scientific enterprise. "It is my job to support faculty who are feeling existential pressure to their research programs, to create an infrastructure that safeguards the incredible science that's being done in our department and ensure the training and education of the next generation of scientists and citizens," she states.
In the current climate, when U researchers are being asked to shorten gestation times of research and move towards applications and commercializing quicker, Clark notes that "innovation in science can be unpredictable — unexpected insight and serendipity can require knowledge and an interdisciplinary perspective that is learned on the decade timescale. Commercialization based on short-term wins can be necessary, but without longer-term intellectual investment is unsustainable.” Her leadership approach is grounded in values from her rural upbringing: curiosity, bravery, and resilience. "There's a lot of bravery that's involved in being a scientist, to learn we must be fearless in the face of the unknown." ~David Pace
Gabriel Bowen

Gabe Bowen
From tracking the routes of water throughout the West to determining the levels of carbon in the Paleocene, Gabriel "Gabe" Bowen’s research into isotopes extends into a variety of critical research paths. He assumes the position of chair in Geology & Geophysics July 1, replacing interim chair Kip Solomon.
“One of the really cool things about isotope geochemistry is that it really crosses disciplinary boundaries,” Bowen says. “It’s a subfield that grew out of earth science, geology and geochemistry, but it’s useful in everything from forensic science to water research to planetary science.”
Bowen grew up in rural Michigan and spent his childhood outdoors, which grew his love of nature and the earth. He received his bachelor’s in geology at the University of Michigan and went to UC Santa Cruz for a PhD in earth science. Bowen came to the U as a postdoc before joining Purdue University as a faculty member for seven years. He returned to the U through the Global Change and Sustainability Center and is now Professor of Geology & Geophysics and Co-Director of the Stable Isotope Facility for Environmental Research (SIRFER).
Recipient of a College of Science Excellence in Research Award, Bowen founded the Spatio-Temporal Isotope Analytics (SPATIAL) Lab, which uses stable isotope techniques to look at a lot of different areas of application of isotope geochemistry. “Isotope science has been kind of limited by our ability to make measurements,” says Bowen.
The SPATIAL Lab
The SPATIAL group has pushed forward uniting isotope geoscience with data science, which helps facilitate data sharing within and between fields of study. This data can then be leveraged to tackle bigger systems questions.
One focus of work within the SPATIAL group is reconstructing Earth’s climate through its geologic past and using that data to see changes in climate, ecosystems, and biogeochemical cycles, which can then be compared to modern day. The SPATIAL group is also studying how natural cycles operate today, such as the water cycle. Additionally, they also study spatial conductivity, or movement of things on the Earth’s surface, such as water, people, plants, and products.
One example is by using isotopes, Bowen looks at where plants are getting water from in the subsurface of the earth, which can show the stability of water supply within a community and help predict how water resources will change due to climate change.
“There’s an intimate coupling between the physical and biological processes that constitute a system,” Bowen says. “Isotopes are a common currency. The elements and isotopes that go through the water cycle or rock cycle are the same ones that go into an elephant or ponderosa pine. We can really bridge the gap and understand the connection across these spheres.”
Contextualizing current and future trends
“The Earth’s been through a lot,” Bowen says. “There’s a lot of context that shows how unusual what’s happening right now is. We’re pushing the climate system and carbon cycle much faster than it’s ever gone at any point in the geologic record.”
Bowen’s climate change research includes tracking the sources of water, such as where water originates before it makes its way to southern California. The isotopes of water in the Imperial Valley in California look more like isotopes in Colorado water than in water elsewhere in southern California. Most of the Imperial Valley water is irrigation water diverted from the Colorado River. The irrigation water becomes wastewater from irritation because of overwatering, and then it enters the groundwater. This has implications when agricultural runoff affects groundwater, as it could contain pesticides and other chemicals used in agricultural work.
The SPATIAL lab runs an annual summer course for graduate students, which provides training and experience in large-scale, data-intensive, geochemically oriented research. The course consists of a discussion and lecture in the morning, delivered by specialists in the field. Laboratory experiences introduce new techniques and hands-on learning.
“We live in a pretty amazing place for geology,” Gabriel Bowen says. He appreciates the geology of Utah from the air, as an amateur pilot. He flies a Cessna 182, mostly for geology sightseeing. He also participates in charity flying, taking people around Antelope Island for sightseeing of the Great Salt Lake. “I try to take my scientist and artist friends out to see things from a different perspective.” ~ CJ Siebeneck