Professor Siebach’s research interests focus on understanding the climate and landscape on early Mars and Earth around the time when life evolved. She works on the operations teams for the Curiosity and Perseverance rovers and uses sedimentology and geochemistry to interpret ancient environments.
Professor Siebach uses sedimentology, geochemistry, mineralogy, and terrestrial field work to interpret ancient climates, landscapes, and rock-forming processes on early Mars. Her work focuses on utilizing geochemical data and images returned from the Mars rovers to understand likely mineral species and separate the chemical signals of volcanic source rocks, sedimentary processes, and fluid events. She does field studies on Earth to better understand the physical and chemical processes that have affected ancient Mars rocks through time.
As a Visiting Professor at Washington University in St. Louis, she is collaborating with other faculty to improve models for geochemical interpretation.