Dr. Sonia Tikoo Schantz

Biography

I utilize paleomagnetism and fundamental rock magnetism tools to investigate problems in planetary sciences. By studying remanent magnetism recorded in rocks from differentiated planetary bodies, I aim to learn about core processes that facilitate the generation of dynamo magnetic fields on Earth, the Moon, and planetesimals. Determining the longevities of paleointensities from dynamo fields in initially magnetized rocks provides insights into the long-term thermal evolution of planetary bodies, including the effects of secular cooling. Through paleomagnetism, I also explore the impact of cratering events, which are ubiquitous modifiers of planetary surfaces in the solar system. Impact events produce heat, shock, and hydrothermal systems that can reset the magnetization of impactites and the target rocks, which are altered through thermal, shock, and chemical processes. Thus, I employ a combination of paleomagnetic and rock magnetic characterization to investigate the shock pressures, temperatures, structural changes, and post-impact chemical alterations experienced by cratered planetary surfaces.

Research Interests

Experience

Courses